feat(javac-21): add support for Java 21 in the IDE (WIP)

2026-10-16 07:49:44 +08:00 · 2024-01-28 09:42:17 +05:30
parent 237469bd91
commit e9269f0d00
39 changed files with 3933 additions and 67 deletions
@@ -46,4 +46,6 @@ dependencies {
  implementation(libs.common.antlr4)
  implementation(libs.google.gson)
  implementation(libs.google.java.format)
+
+  implementation(libs.misc.jackpot30)
 }
@@ -0,0 +1,149 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins
+
+import com.itsaky.androidide.plugins.tasks.javac.JavacExtractClassesTask
+import com.itsaky.androidide.plugins.tasks.javac.JavacFinalizeTask
+import com.itsaky.androidide.plugins.tasks.javac.JavacJackpotTask
+import com.itsaky.androidide.plugins.tasks.javac.JavacPropertiesParserTask
+import com.itsaky.androidide.plugins.tasks.javac.JavacRenamePackageReferencesTask
+import com.itsaky.androidide.plugins.tasks.javac.JdkSourceDownloadTask
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.tasks.Copy
+import org.gradle.api.tasks.Delete
+import org.gradle.api.tasks.compile.JavaCompile
+
+/**
+ * Downloads JDK source, extracts source files for the Java compiler and patches them so that
+ * they can be used on Android.
+ *
+ * @author Akash Yadav
+ */
+class JavacJackpotPlugin : Plugin<Project> {
+
+  companion object {
+
+    /**
+     * Files to copy as-is from JDK source. The keys are the JDK module names and the values are
+     * glob paths to the files in <module>/share/classes directory, minus the '.java' extension.
+     *
+     * IMPORTANT: Package names of all the classes are prefixed with `com.itsaky.androidide` in order
+     * to avoid conflicts with the classes defined in the JDK.
+     */
+    private val copySourceFiles = listOf(
+      "java.base" to "jdk/internal/misc/PreviewFeatures",
+      "java.base" to "jdk/internal/misc/MainMethodFinder",
+      "java.base" to "jdk/internal/javac/*",
+    )
+  }
+
+  override fun apply(target: Project) {
+    target.run {
+      val javacAndroid = layout.buildDirectory.dir("javac-android")
+      val jdkSource = javacAndroid.get().dir("jdk")
+
+      val downloadTask = tasks.register("downloadJdkSource", JdkSourceDownloadTask::class.java)
+
+      val deleteExtractedSourceTask = tasks.register("deleteExtractedJdkSource",
+        Delete::class.java) {
+        dependsOn(downloadTask)
+        delete(jdkSource)
+      }
+
+      val extractJdkSourceTask = tasks.register("extractJdkSource", Copy::class.java) {
+        dependsOn(deleteExtractedSourceTask)
+
+        from(tarTree(downloadTask.get().outputFile))
+        into(jdkSource)
+      }
+
+      val jackpotTaskName = "javacJackpot"
+      val transformedJavacSourceDir = javacAndroid.get().dir(jackpotTaskName)
+
+      val deleteTransformedSourcesTask = tasks.register(
+        "deleteTransformedJavacSources",
+        Delete::class.java
+      ) {
+        dependsOn(extractJdkSourceTask)
+        delete(transformedJavacSourceDir)
+      }
+
+      val copiedSourceFilesDir = javacAndroid.get().dir("copiedSources")
+      val copySourcesTask = tasks.register("copySourceFiles", Copy::class.java) {
+        dependsOn(deleteTransformedSourcesTask)
+
+        copySourceFiles.forEach { (module, files) ->
+          from(
+            jdkSource.dir(downloadTask.get().jdkSourceDirName()).dir("src/${module}/share/classes")
+          )
+          include("${files}.java")
+        }
+
+        into(copiedSourceFilesDir.dir("com/itsaky/androidide"))
+      }
+
+      val jackpotTask = tasks.register(jackpotTaskName, JavacJackpotTask::class.java) {
+        dependsOn(copySourcesTask)
+        source(project.fileTree("src/main/resources").matching { include("**/*.hint") })
+        jdkSourceDirectory.set(jdkSource.dir(downloadTask.get().jdkSourceDirName()))
+        sourceOutDirectory.set(transformedJavacSourceDir)
+      }
+
+      val deleteInfoFilesTask = tasks.register("deleteInfoFiles", Delete::class.java) {
+        delete(project.fileTree(transformedJavacSourceDir).also {
+          dependsOn(jackpotTask)
+          it.include("**/module-info.java", "**/package-info.java")
+        })
+      }
+
+      val renamePackageReferencesTask = tasks.register("renamePackageReferences",
+        JavacRenamePackageReferencesTask::class.java) {
+        dependsOn(deleteInfoFilesTask)
+        source(transformedJavacSourceDir.asFileTree.matching { include("**/*.java") })
+        source(copiedSourceFilesDir)
+      }
+
+      val compilePropertiesTask = target.tasks.register("compileProperties",
+        JavacPropertiesParserTask::class.java) {
+        dependsOn(renamePackageReferencesTask)
+        sourceDir.set(transformedJavacSourceDir.dir("jdk.compiler"))
+        outputs.dir(getPropsDir())
+      }
+
+      val finalTask = tasks.register("finalizeJavacTask", JavacFinalizeTask::class.java) {
+        dependsOn(compilePropertiesTask)
+      }
+
+      tasks.withType(JavaCompile::class.java) {
+        dependsOn(finalTask)
+
+        options.compilerArgs.add("--add-exports=java.base/sun.reflect.annotation=ALL-UNNAMED")
+      }
+
+      extensions.getByType(JavaPluginExtension::class.java).run {
+        sourceSets.getByName("main").java.srcDirs(
+          JavacJackpotTask.getTransformedSourceDirectories(transformedJavacSourceDir.asFile),
+          copiedSourceFilesDir,
+          compilePropertiesTask.get().getPropsDir()
+        )
+      }
+    }
+  }
+}
@@ -41,32 +41,32 @@ class PropertiesParserPlugin : Plugin<Project> {
      sourceSets.getByName("main").java { srcDir(target.propsDir) }
    }

-    target.tasks.register("compileProperties") {
-      doLast {
-        val options = target.createParserOptions()
-        if (options.isEmpty()) {
-          return@doLast
-        }
-
-        val parser = PropertiesParser { target.logger.lifecycle(it) }
-
-        logger.info(
-          "Running PropertiesParser with arguments: ${options.joinToString(separator = " ")}"
-        )
-
-        val ok = parser.run(options.toTypedArray())
-        if (!ok) {
-          throw GradleException("Failed to parse property files")
-        }
-      }
-
-      outputs.dir(target.propsDir)
-    }
-
-    target.tasks.register("cleanCompiledProperties", Delete::class.java) { delete(target.propsDir) }
-
-    target.tasks.withType(JavaCompile::class.java) { dependsOn("compileProperties") }
-    target.tasks.getByName("clean").dependsOn("cleanCompiledProperties")
+//    target.tasks.register("compileProperties") {
+//      doLast {
+//        val options = target.createParserOptions()
+//        if (options.isEmpty()) {
+//          return@doLast
+//        }
+//
+//        val parser = PropertiesParser { target.logger.lifecycle(it) }
+//
+//        logger.info(
+//          "Running PropertiesParser with arguments: ${options.joinToString(separator = " ")}"
+//        )
+//
+//        val ok = parser.run(options.toTypedArray())
+//        if (!ok) {
+//          throw GradleException("Failed to parse property files")
+//        }
+//      }
+//
+//      outputs.dir(target.propsDir)
+//    }
+//
+//    target.tasks.register("cleanCompiledProperties", Delete::class.java) { delete(target.propsDir) }
+//
+//    target.tasks.withType(JavaCompile::class.java) { dependsOn("compileProperties") }
+//    target.tasks.getByName("clean").dependsOn("cleanCompiledProperties")
  }
 }

@@ -72,6 +72,7 @@ fun Project.configureAndroidModule(
          arrayOf(
            "META-INF/CHANGES",
            "META-INF/README.md",
+            "nbjavac.hint"
          )
        )
        pickFirsts.addAll(
@@ -46,20 +46,11 @@ public class PropertiesParser {

  public Logger logger;

-  public PropertiesParser(Logger logger) {
+  private final File baseDir;
+
+  public PropertiesParser(Logger logger, File baseDir) {
    this.logger = logger;
-  }
-
-  public static void main(String[] args) {
-    boolean ok = run(args, System.out);
-    if (!ok) {
-      System.exit(1);
-    }
-  }
-
-  public static boolean run(String[] args, PrintStream out) {
-    PropertiesParser pp = new PropertiesParser(out::println);
-    return pp.run(args);
+    this.baseDir = baseDir;
  }

  public void info(String msg) {
@@ -86,7 +77,7 @@ public class PropertiesParser {
      File propertyFile = new File(propertyPath);
      String prefix = propertyFile.getName().split("\\.")[0];
      MessageFile messageFile = new MessageFile(propertyFile, prefix);
-      new ClassGenerator().generateFactory(messageFile, new File(outPath));
+      new ClassGenerator(this.baseDir).generateFactory(messageFile, new File(outPath));
    } catch (Throwable ex) {
      throw new RuntimeException(ex);
    }
@@ -57,6 +57,8 @@ import java.util.stream.Stream;

 public class ClassGenerator {

+  private final File baseDir;
+
  private static final String TEMPLATE_PROPS = "#\n" +
      "# Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.\n" +
      "# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.\n" +
@@ -86,10 +88,10 @@ public class ClassGenerator {
      "    package {0};\\n\\\n" +
      "    \\n\\\n" +
      "    {1}\\n\\\n" +
-      "    import openjdk.tools.javac.util.JCDiagnostic.Error;\\n\\\n" +
-      "    import openjdk.tools.javac.util.JCDiagnostic.Warning;\\n\\\n" +
-      "    import openjdk.tools.javac.util.JCDiagnostic.Note;\\n\\\n" +
-      "    import openjdk.tools.javac.util.JCDiagnostic.Fragment;\\n\\\n" +
+      "    import com.itsaky.androidide.com.sun.tools.javac.util.JCDiagnostic.Error;\\n\\\n" +
+      "    import com.itsaky.androidide.com.sun.tools.javac.util.JCDiagnostic.Warning;\\n\\\n" +
+      "    import com.itsaky.androidide.com.sun.tools.javac.util.JCDiagnostic.Note;\\n\\\n" +
+      "    import com.itsaky.androidide.com.sun.tools.javac.util.JCDiagnostic.Fragment;\\n\\\n" +
      "    \\n\\\n" +
      "    public class {2} '{'\\n\\\n" +
      "    {3}\\n\\\n" +
@@ -234,6 +236,10 @@ public class ClassGenerator {
    }
  };

+  public ClassGenerator(File baseDir) {
+    this.baseDir = baseDir;
+  }
+
  /**
   * Form the name of the toplevel factory class.
   */
@@ -337,9 +343,7 @@ public class ClassGenerator {
   */
  String packageName(File file) {
    String path = file.getAbsolutePath();
-    int begin = path.indexOf("src/main/resources".replace('/', File.separatorChar))
-        + "src/main/resources".length();
-    String packagePath = path.substring(begin + 1, path.lastIndexOf(File.separatorChar));
+    String packagePath = path.substring(baseDir.getAbsolutePath().length() + 1, path.lastIndexOf(File.separatorChar));
    return packagePath.replace(File.separatorChar, '.');
  }

@@ -46,30 +46,30 @@ public interface MessageType {
   */
  enum SimpleType implements MessageType {

-    ANNOTATION("annotation", "Compound", "openjdk.tools.javac.code.Attribute"),
+    ANNOTATION("annotation", "Compound", "com.itsaky.androidide.com.sun.tools.javac.code.Attribute"),
    BOOLEAN("boolean", "boolean", null),
    COLLECTION("collection", "Collection", "java.util"),
-    FLAG("flag", "Flag", "openjdk.tools.javac.code.Flags"),
+    FLAG("flag", "Flag", "com.itsaky.androidide.com.sun.tools.javac.code.Flags"),
    FRAGMENT("fragment", "Fragment", null),
-    DIAGNOSTIC("diagnostic", "JCDiagnostic", "openjdk.tools.javac.util"),
-    MODIFIER("modifier", "Modifier", "jdkx.lang.model.element"),
+    DIAGNOSTIC("diagnostic", "JCDiagnostic", "com.itsaky.androidide.com.sun.tools.javac.util"),
+    MODIFIER("modifier", "Modifier", "com.itsaky.androidide.javax.lang.model.element"),
    FILE("file", "File", "java.io"),
-    FILE_OBJECT("file object", "JavaFileObject", "jdkx.tools"),
+    FILE_OBJECT("file object", "JavaFileObject", "com.itsaky.androidide.javax.tools"),
    PATH("path", "Path", "java.nio.file"),
-    NAME("name", "Name", "openjdk.tools.javac.util"),
+    NAME("name", "Name", "com.itsaky.androidide.com.sun.tools.javac.util"),
    NUMBER("number", "int", null),
-    OPTION_NAME("option name", "Option", "openjdk.tools.javac.main"),
-    PROFILE("profile", "Profile", "openjdk.tools.javac.jvm"),
-    SOURCE("source", "Source", "openjdk.tools.javac.code"),
-    SOURCE_VERSION("source version", "SourceVersion", "jdkx.lang.model"),
+    OPTION_NAME("option name", "Option", "com.itsaky.androidide.com.sun.tools.javac.main"),
+    PROFILE("profile", "Profile", "com.itsaky.androidide.com.sun.tools.javac.jvm"),
+    SOURCE("source", "Source", "com.itsaky.androidide.com.sun.tools.javac.code"),
+    SOURCE_VERSION("source version", "SourceVersion", "com.itsaky.androidide.javax.lang.model"),
    STRING("string", "String", null),
-    SYMBOL("symbol", "Symbol", "openjdk.tools.javac.code"),
-    SYMBOL_KIND("symbol kind", "Kind", "openjdk.tools.javac.code.Kinds"),
-    KIND_NAME("kind name", "KindName", "openjdk.tools.javac.code.Kinds"),
-    TARGET("target", "Target", "openjdk.tools.javac.jvm"),
-    TOKEN("token", "TokenKind", "openjdk.tools.javac.parser.Tokens"),
-    TREE_TAG("tree tag", "Tag", "openjdk.tools.javac.tree.JCTree"),
-    TYPE("type", "Type", "openjdk.tools.javac.code"),
+    SYMBOL("symbol", "Symbol", "com.itsaky.androidide.com.sun.tools.javac.code"),
+    SYMBOL_KIND("symbol kind", "Kind", "com.itsaky.androidide.com.sun.tools.javac.code.Kinds"),
+    KIND_NAME("kind name", "KindName", "com.itsaky.androidide.com.sun.tools.javac.code.Kinds"),
+    TARGET("target", "Target", "com.itsaky.androidide.com.sun.tools.javac.jvm"),
+    TOKEN("token", "TokenKind", "com.itsaky.androidide.com.sun.tools.javac.parser.Tokens"),
+    TREE_TAG("tree tag", "Tag", "com.itsaky.androidide.com.sun.tools.javac.tree.JCTree"),
+    TYPE("type", "Type", "com.itsaky.androidide.com.sun.tools.javac.code"),
    URL("url", "URL", "java.net"),
    SET("set", "Set", "java.util"),
    LIST("list", "List", "java.util"),
@@ -114,7 +114,7 @@ public interface MessageType {
   * handy option when prototyping - but usages of custom types should be avoided in product-quality
   * resource file comments.
   * <p>
-   * Example: 'openjdk.tools.javac.code.Flags.Flag'
+   * Example: 'com.itsaky.androidide.com.sun.tools.javac.code.Flags.Flag'
   */
  class CustomType implements MessageType {

@@ -0,0 +1,61 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.provider.ListProperty
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.OutputDirectory
+import org.gradle.api.tasks.TaskAction
+import java.net.URI
+import java.nio.file.Files
+import java.nio.file.Paths
+import kotlin.io.path.copyTo
+
+/**
+ * @author Akash Yadav
+ */
+abstract class JavacExtractClassesTask : DefaultTask() {
+
+  @get:Input
+  abstract val classFiles: ListProperty<Pair<String, String>>
+
+  @get:OutputDirectory
+  abstract val outputDirectory: DirectoryProperty
+
+  @TaskAction
+  fun extractClasses() {
+    val modules = Paths.get(URI.create("jrt:/")).resolve("/modules")
+
+    val outDir = outputDirectory.get().asFile
+
+    for ((module, classFile) in classFiles.get()) {
+      val classPath = "${classFile}.class"
+      val path = modules.resolve(module).resolve(classPath)
+      if (!Files.exists(path)) {
+        throw GradleException("Class file $classPath does not exist in module $module")
+      }
+
+      val target = outDir.toPath().resolve(classPath)
+      Files.createDirectories(target.parent)
+      path.copyTo(target)
+    }
+  }
+}
@@ -0,0 +1,33 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.tasks.TaskAction
+
+/**
+ * No-op, marker task.
+ *
+ * @author Akash Yadav
+ */
+abstract class JavacFinalizeTask : DefaultTask() {
+
+  @TaskAction
+  fun noOp() {
+  }
+}
@@ -0,0 +1,178 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.tasks.InputDirectory
+import org.gradle.api.tasks.Optional
+import org.gradle.api.tasks.OutputDirectory
+import org.gradle.api.tasks.SourceTask
+import org.gradle.api.tasks.TaskAction
+import java.io.File
+
+/**
+ * Task to transform Java compiler sources to make it compatible with the Android Runtime.
+ *
+ * @author Akash Yadav
+ */
+abstract class JavacJackpotTask : SourceTask() {
+
+  /**
+   * The source directory for the JDK.
+   */
+  @get:InputDirectory
+  abstract val jdkSourceDirectory: DirectoryProperty
+
+  /**
+   * The output directory where all the transformed sources will be stored.
+   */
+  @get:OutputDirectory
+  @get:Optional
+  abstract val sourceOutDirectory: DirectoryProperty
+
+  init {
+    run {
+      sourceOutDirectory.convention(project.layout.buildDirectory.dir(name))
+    }
+  }
+
+  companion object {
+
+    private val javaPckRegex = """^[a-zA-Z_]\w*(\.[a-zA-Z_]\w*)*${'$'}""".toRegex()
+    private val packageTransformExcludes = arrayOf(
+      "sun.reflect"
+    )
+
+    fun getTransformedSourceDirectories(sourceOutDir: File): List<File> {
+      return compilerModules().map { resolveTransformedSrcDir(sourceOutDir, it, false) }
+    }
+
+    private fun compilerModules(): Array<String> {
+      return arrayOf("java.compiler", "jdk.compiler")
+    }
+
+    private fun resolveTransformedSrcDir(srcOut: File, module: String, transformPck: Boolean) =
+      srcOut.resolve(module).let {
+        if (transformPck) {
+          File(it, "com/itsaky/androidide")
+        } else it
+      }
+
+    private fun resolveJdkModuleJavaSrc(jdkSrc: File, module: String) =
+      jdkSrc.resolve("src/${module}/share/classes")
+  }
+
+  @TaskAction
+  fun jackpot() {
+    val projectJavaSrc = project.file("src/main/java")
+    val jdkSrc = jdkSourceDirectory.get().asFile
+    val srcOut = sourceOutDirectory.get().asFile
+    val modules = compilerModules()
+
+    for (module in modules) {
+      resolveJdkModuleJavaSrc(jdkSrc, module).copyRecursively(
+        resolveTransformedSrcDir(srcOut, module, true))
+    }
+
+    val sourcePaths = mutableListOf(projectJavaSrc.absolutePath).let { paths ->
+      paths.addAll(
+        modules.map { module -> resolveJdkModuleJavaSrc(jdkSrc, module).absolutePath }
+      )
+      paths.joinToString(separator = File.pathSeparator)
+    }
+
+    // sorted
+    val finalHintFiles = source.files.map { it.absolutePath }.toMutableList()
+    finalHintFiles.add(writePckTransformationsHintFile(srcOut))
+
+    finalHintFiles.sortByDescending { it.substringAfterLast(File.separatorChar).substring(0, 2) }
+
+    for (hintFile in finalHintFiles) {
+      val cmdline = createCmdlineForHintFile(
+        hintFile,
+        sourcePaths,
+        modules,
+        srcOut
+      )
+
+      logger.lifecycle("Running: ${cmdline.joinToString(separator = " ")}")
+      org.netbeans.modules.jackpot30.cmdline.Main.compile(*cmdline.toTypedArray())
+    }
+  }
+
+  private fun createCmdlineForHintFile(hintFilePath: String, sourcePaths: String,
+    modules: Array<String>,
+    srcOut: File): MutableList<String> {
+    val cmdline = mutableListOf(
+      "--hint-file",
+      hintFilePath,
+      "--sourcepath",
+      sourcePaths,
+      "--source", "8",
+      "--apply"
+    )
+
+    cmdline.addAll(modules.map { module ->
+      resolveTransformedSrcDir(srcOut, module, false).also { it.mkdirs() }.absolutePath
+    })
+    return cmdline
+  }
+
+  private fun writePckTransformationsHintFile(srcOut: File): String {
+    val hintFileOut = sourceOutDirectory.file("ac_nb-javac-android.hint").get().asFile
+    val packgeTransformations = compilerModules().flatMap { module ->
+      val moduleDir = resolveTransformedSrcDir(srcOut, module, true)
+
+      // list all classes and change the refactor to change their package names
+      // refactoring the package names directly causes strange issues and in some cases,
+      // a few classes are left out
+      // as a result, we refactor each class individually and change the package/import declarations
+      // manually using find & replace
+    moduleDir.walkBottomUp()
+      .filter { it.isFile && it.extension == "java" }
+      .mapNotNull {
+        it.absolutePath.substring(moduleDir.absolutePath.length)
+          .takeIf { path -> path.isNotBlank() }
+      }
+      .map { it.substring(1).replace(File.separatorChar, '.') }
+      .map { it.substringBeforeLast(".java") }
+      .distinct()
+
+      // to change the package names directly,
+      // use the following
+//      moduleDir.walkBottomUp()
+//        .filter { it.isDirectory }
+//        .mapNotNull {
+//          it.absolutePath.substring(moduleDir.absolutePath.length)
+//            .takeIf { path -> path.isNotBlank() }
+//        }
+//        .map { it.substring(1).replace(File.separatorChar, '.') }
+//        .distinct()
+//        .filter { pck -> javaPckRegex.matches(pck) && packageTransformExcludes.none { it == pck || it.startsWith(pck) } }
+//    }.joinToString(separator = System.lineSeparator()) { pck ->
+//      "$pck => com.itsaky.androidide.${pck} ;;"
+//    }
+  }.joinToString(separator = System.lineSeparator()) { cls ->
+    "$cls => com.itsaky.androidide.${cls} ;;"
+  }
+
+    hintFileOut.writeText(packgeTransformations)
+
+    return hintFileOut.absolutePath
+  }
+}
@@ -0,0 +1,97 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import com.itsaky.androidide.plugins.properties.PropertiesParser
+import com.itsaky.androidide.plugins.properties.gen.ClassGenerator
+import com.itsaky.androidide.plugins.tasks.javac.JavacPropertiesParserTask.Companion.getGeneratedPropsDirectory
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.Project
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.tasks.Internal
+import org.gradle.api.tasks.TaskAction
+import java.io.File
+
+/**
+ * @author Akash Yadav
+ */
+abstract class JavacPropertiesParserTask : DefaultTask() {
+
+  @get:Internal
+  abstract val sourceDir: DirectoryProperty
+
+  @TaskAction
+  fun parseProperties() {
+    val options = project.createParserOptions(sourceDir.get().asFile)
+    if (options.isEmpty()) {
+      return
+    }
+
+    val parser = PropertiesParser({ logger.lifecycle(it) }, sourceDir.get().asFile)
+
+    logger.info(
+      "Running PropertiesParser with arguments: ${options.joinToString(separator = " ")}"
+    )
+
+    val ok = parser.run(options.toTypedArray())
+    if (!ok) {
+      throw GradleException("Failed to parse property files")
+    }
+  }
+
+  @Internal
+  fun getPropsDir(): File {
+    return project.getGeneratedPropsDirectory()
+  }
+
+  companion object {
+
+    fun Project.getGeneratedPropsDirectory(): File =
+      project.layout.buildDirectory.dir("generated/properties").get().asFile
+  }
+}
+
+private fun Project.createParserOptions(baseDir: File): List<String> {
+  val options = mutableListOf<String>()
+  baseDir.walkTopDown().forEach {
+    if (!(it.isFile && it.extension == "properties")) {
+      return@forEach
+    }
+
+    val destPath =
+      it.path.substringAfter(baseDir.absolutePath)
+        .substringBeforeLast(File.separatorChar) +
+          File.separator +
+          ClassGenerator.toplevelName(it) +
+          ".java"
+
+    val destFile = File(getGeneratedPropsDirectory(), destPath)
+
+    if (destFile.exists() && destFile.lastModified() >= it.lastModified()) {
+      logger.info("${it.name} is up-to-date. Skipping.")
+      return@forEach
+    }
+
+    destFile.parentFile.mkdirs()
+    options.add("-compile")
+    options.add(it.absolutePath)
+    options.add(destFile.parentFile.absolutePath)
+  }
+  return options
+}
@@ -0,0 +1,42 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import org.gradle.api.tasks.SourceTask
+import org.gradle.api.tasks.TaskAction
+import org.gradle.workers.WorkerExecutor
+import javax.inject.Inject
+
+/**
+ * @author Akash Yadav
+ */
+abstract class JavacRenamePackageReferencesTask : SourceTask() {
+
+  @get:Inject
+  abstract val workerExecutor: WorkerExecutor
+
+  @TaskAction
+  fun doRenameReferences() {
+    val workQueue = workerExecutor.noIsolation()
+    for (file in source.files) {
+      workQueue.submit(JavacRenamePackgeReferencesWorker::class.java) {
+        this.file.set(file)
+      }
+    }
+  }
+}
@@ -0,0 +1,70 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.workers.WorkAction
+import org.gradle.workers.WorkParameters
+
+/**
+ * @author Akash Yadav
+ */
+abstract class JavacRenamePackgeReferencesWorker: WorkAction<JavacRenamePackgeReferencesWorker.Params> {
+
+  companion object {
+
+    private val unsafeToReplacePackages = arrayOf(
+      "com.sun",
+      "jdk.internal",
+      "sun.tools"
+    )
+
+    private val safeToReplacePackages = arrayOf(
+      "javax.annotation",
+      "javax.lang",
+      "javax.tools",
+    )
+
+    private val replaceTypes = arrayOf(
+      "package",
+      "import",
+      "import static"
+    )
+  }
+
+  override fun execute() {
+    val file = parameters.file.get().asFile
+    var content = file.readText()
+
+    for (pck in unsafeToReplacePackages) {
+      for (typ in replaceTypes) {
+        content = content.replace(Regex.fromLiteral("$typ $pck"), "$typ com.itsaky.androidide.$pck")
+      }
+    }
+
+    for (pck in safeToReplacePackages) {
+      content = content.replace(Regex.fromLiteral(pck), "com.itsaky.androidide.$pck")
+    }
+
+    file.writeText(content)
+  }
+
+  interface Params: WorkParameters {
+    val file: RegularFileProperty
+  }
+}
@@ -0,0 +1,89 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.plugins.tasks.javac
+
+import com.itsaky.androidide.plugins.util.DownloadUtils
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Optional
+import org.gradle.api.tasks.OutputFile
+import org.gradle.api.tasks.TaskAction
+
+/**
+ * Task to download JDK source code.
+ *
+ * @author Akash Yadav
+ */
+abstract class JdkSourceDownloadTask : DefaultTask() {
+
+  /**
+   * The commit hash to download.
+   */
+  @get:Input
+  abstract val commitHash: Property<String>
+
+  /**
+   * The SHA-256 hash of the source tarball.
+   */
+  @get:Input
+  abstract val sourceSHA256: Property<String>
+
+  /**
+   * The directory to download the source tarbar to.
+   */
+  @get:OutputFile
+  @get:Optional
+  abstract val outputFile: RegularFileProperty
+
+  init {
+    run {
+      commitHash.convention(DEFAULT_JDK_COMMIT_HASH)
+      sourceSHA256.convention(DEFAULT_JDK_SOURCE_SHA)
+      outputFile.convention(project.layout.buildDirectory.dir(name).get().file("${commitHash.get()}.tar.gz"))
+    }
+  }
+
+  companion object {
+
+    private const val DEFAULT_JDK_COMMIT_HASH = "3036d3921cae2900aab4610b1e22ee816ac64e2d"
+    private const val DEFAULT_JDK_SOURCE_SHA = "d6d9aa6465becf1332bdca6d60cbf37f66ac0d2e7755c3197125d452f03ec657"
+    private const val REPOSITORY_OWNER = "itsaky"
+    private const val REPOSITORY_NAME = "openjdk-21-android"
+    private const val JDK_DOWNLOAD_URL = "https://github.com/${REPOSITORY_OWNER}/${REPOSITORY_NAME}/archive/%s.tar.gz"
+  }
+
+  @TaskAction
+  fun downloadSource() {
+    val downloadUrl = JDK_DOWNLOAD_URL.format(commitHash.get())
+    val outFile = outputFile.get().asFile
+
+    DownloadUtils.doDownload(outFile, downloadUrl, sourceSHA256.get(), logger)
+
+    if (!outFile.exists() || !outFile.isFile) {
+      throw GradleException("$outFile does not exist or is not a file.")
+    }
+  }
+
+  fun jdkSourceDirName() : String {
+    return "${REPOSITORY_NAME}-${commitHash.get()}"
+  }
+}
@@ -42,7 +42,7 @@ object DownloadUtils {
    logger: Logger
  ) {

-    logger.info("Download $remoteUrl to $file having checksum ${expectedChecksum}...")
+    logger.lifecycle("Download $remoteUrl to $file having checksum ${expectedChecksum}...")

    val digest = MessageDigest.getInstance("SHA-256")

@@ -22,7 +22,6 @@ maven-publish-plugin = "0.25.3"
 [libraries]

 # AndroidIDE
-androidide-javac = { module = "io.github.itsaky:nb-javac-android", version = "17.0.0.4-SNAPSHOT" }
 androidide-ts = { module = "com.itsaky.androidide.treesitter:android-tree-sitter", version.ref = "tree-sitter" }
 androidide-ts-java = { module = "com.itsaky.androidide.treesitter:tree-sitter-java", version.ref = "tree-sitter" }
 androidide-ts-json = { module = "com.itsaky.androidide.treesitter:tree-sitter-json", version.ref = "tree-sitter" }
@@ -144,6 +143,9 @@ kotlin-gradle-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", v
 nav-safe-args-gradle-plugin = { module = "androidx.navigation:navigation-safe-args-gradle-plugin", version.ref = "androidx-navigation" }
 maven-publish = { module = "com.vanniktech:gradle-maven-publish-plugin", version.ref = "maven-publish-plugin" }

+# Misc
+misc-jackpot30 = { module = "org.apache.netbeans.modules.jackpot30:tool", version = "13.0" }
+
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 android-library = { id = "com.android.library", version.ref = "agp" }
@@ -1,5 +1,11 @@
@file:Suppress("UnstableApiUsage")

+include(":subprojects:javac-deps")
+
+
+include(":subprojects:javac-jackpot")
+
+
 enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")

 pluginManagement {
@@ -0,0 +1 @@
+/build
@@ -0,0 +1,26 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+@Suppress("")
+plugins {
+  id("java-library")
+}
+
+java {
+  sourceCompatibility = JavaVersion.VERSION_1_8
+  targetCompatibility = JavaVersion.VERSION_1_8
+}
@@ -0,0 +1,712 @@
+/*
+ * Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+
+import java.io.ObjectInputStream;
+import java.lang.annotation.*;
+import java.lang.reflect.*;
+import java.io.Serializable;
+import java.util.*;
+import java.util.stream.*;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import sun.reflect.annotation.AnnotationType;
+
+/**
+ * InvocationHandler for dynamic proxy implementation of Annotation.
+ *
+ * @author  Josh Bloch
+ * @since   1.5
+ */
+@SuppressWarnings("Since15")
+class AnnotationInvocationHandler implements InvocationHandler, Serializable {
+    @java.io.Serial
+    private static final long serialVersionUID = 6182022883658399397L;
+    private final Class<? extends Annotation> type;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
+    private final Map<String, Object> memberValues;
+
+    AnnotationInvocationHandler(Class<? extends Annotation> type, Map<String, Object> memberValues) {
+        Class<?>[] superInterfaces = type.getInterfaces();
+        if (!type.isAnnotation() ||
+            superInterfaces.length != 1 ||
+            superInterfaces[0] != Annotation.class)
+            throw new AnnotationFormatError("Attempt to create proxy for a non-annotation type: " +
+                                            type.getName());
+        this.type = type;
+        this.memberValues = memberValues;
+    }
+
+    public Object invoke(Object proxy, Method method, Object[] args) {
+        String member = method.getName();
+        int parameterCount = method.getParameterCount();
+
+        // Handle Object and Annotation methods
+        if (parameterCount == 1 && member == "equals" &&
+                method.getParameterTypes()[0] == Object.class) {
+            return equalsImpl(proxy, args[0]);
+        }
+        if (parameterCount != 0) {
+            throw new AssertionError("Too many parameters for an annotation method");
+        }
+
+        if (member == "toString") {
+            return toStringImpl();
+        } else if (member == "hashCode") {
+            return hashCodeImpl();
+        } else if (member == "annotationType") {
+            return type;
+        }
+
+        // Handle annotation member accessors
+        Object result = memberValues.get(member);
+
+        if (result == null)
+            throw new IncompleteAnnotationException(type, member);
+
+        if (result instanceof ExceptionProxy)
+            throw ((ExceptionProxy) result).generateException();
+
+        if (result.getClass().isArray() && Array.getLength(result) != 0)
+            result = cloneArray(result);
+
+        return result;
+    }
+
+    /**
+     * This method, which clones its array argument, would not be necessary
+     * if Cloneable had a public clone method.
+     */
+    private Object cloneArray(Object array) {
+        Class<?> type = array.getClass();
+
+        if (type == byte[].class) {
+            byte[] byteArray = (byte[])array;
+            return byteArray.clone();
+        }
+        if (type == char[].class) {
+            char[] charArray = (char[])array;
+            return charArray.clone();
+        }
+        if (type == double[].class) {
+            double[] doubleArray = (double[])array;
+            return doubleArray.clone();
+        }
+        if (type == float[].class) {
+            float[] floatArray = (float[])array;
+            return floatArray.clone();
+        }
+        if (type == int[].class) {
+            int[] intArray = (int[])array;
+            return intArray.clone();
+        }
+        if (type == long[].class) {
+            long[] longArray = (long[])array;
+            return longArray.clone();
+        }
+        if (type == short[].class) {
+            short[] shortArray = (short[])array;
+            return shortArray.clone();
+        }
+        if (type == boolean[].class) {
+            boolean[] booleanArray = (boolean[])array;
+            return booleanArray.clone();
+        }
+
+        Object[] objectArray = (Object[])array;
+        return objectArray.clone();
+    }
+
+
+    /**
+     * Implementation of dynamicProxy.toString()
+     */
+    private String toStringImpl() {
+        StringBuilder result = new StringBuilder(128);
+        result.append('@');
+        // Guard against null canonical name; shouldn't happen
+        result.append(Objects.toString(type.getCanonicalName(),
+                                       "<no canonical name>"));
+        result.append('(');
+        boolean firstMember = true;
+        Set<Map.Entry<String, Object>> entries = memberValues.entrySet();
+        boolean loneValue = entries.size() == 1;
+        for (Map.Entry<String, Object> e : entries) {
+            if (firstMember)
+                firstMember = false;
+            else
+                result.append(", ");
+
+            String key = e.getKey();
+            if (!loneValue || !"value".equals(key)) {
+                result.append(key);
+                result.append('=');
+            }
+            loneValue = false;
+            result.append(memberValueToString(e.getValue()));
+        }
+        result.append(')');
+        return result.toString();
+    }
+
+    /**
+     * Translates a member value (in "dynamic proxy return form") into a string.
+     */
+    private static String memberValueToString(Object value) {
+        Class<?> type = value.getClass();
+        if (!type.isArray()) {
+            // primitive value, string, class, enum const, or annotation
+            if (type == Class.class)
+                return toSourceString((Class<?>) value);
+            else if (type == String.class)
+                return  toSourceString((String) value);
+            if (type == Character.class)
+                return toSourceString((char) value);
+            else if (type == Double.class)
+                return  toSourceString((double) value);
+            else if (type == Float.class)
+                return  toSourceString((float) value);
+            else if (type == Long.class)
+                return  toSourceString((long) value);
+            else if (type == Byte.class)
+                return  toSourceString((byte) value);
+            else if (value instanceof Enum<?>)
+                // Predicate above covers enum constants, including
+                // those with specialized class bodies.
+                return toSourceString(((Enum<?>) value));
+            else
+                return value.toString();
+        } else {
+            Stream<String> stringStream;
+            if (type == byte[].class)
+                stringStream = convert((byte[]) value);
+            else if (type == char[].class)
+                stringStream = convert((char[]) value);
+            else if (type == double[].class)
+                stringStream = DoubleStream.of((double[]) value)
+                    .mapToObj(AnnotationInvocationHandler::toSourceString);
+            else if (type == float[].class)
+                stringStream = convert((float[]) value);
+            else if (type == int[].class)
+                stringStream = IntStream.of((int[]) value).mapToObj(String::valueOf);
+            else if (type == long[].class) {
+                stringStream = LongStream.of((long[]) value)
+                    .mapToObj(AnnotationInvocationHandler::toSourceString);
+            } else if (type == short[].class)
+                stringStream = convert((short[]) value);
+            else if (type == boolean[].class)
+                stringStream = convert((boolean[]) value);
+            else if (type == Class[].class)
+                stringStream =
+                    Arrays.stream((Class<?>[]) value).
+                    map(AnnotationInvocationHandler::toSourceString);
+            else if (type == String[].class)
+                stringStream =
+                    Arrays.stream((String[])value).
+                    map(AnnotationInvocationHandler::toSourceString);
+            else if (type.getComponentType().isEnum())
+                stringStream =
+                    Arrays.stream((Enum<?>[])value).
+                    map(AnnotationInvocationHandler::toSourceString);
+            else
+                stringStream = Arrays.stream((Object[])value).map(Objects::toString);
+
+            return stringStreamToString(stringStream);
+        }
+    }
+
+    /**
+     * Translates a Class value to a form suitable for use in the
+     * string representation of an annotation.
+     */
+    private static String toSourceString(Class<?> clazz) {
+        // Guard against null canonical name; shouldn't happen
+        return Objects.toString(clazz.getCanonicalName(),
+                                "<no canonical name>") + ".class";
+    }
+
+    private static String toSourceString(float f) {
+        if (Float.isFinite(f))
+            return Float.toString(f) + "f" ;
+        else {
+            if (Float.isInfinite(f)) {
+                return (f < 0.0f) ? "-1.0f/0.0f": "1.0f/0.0f";
+            } else
+                return "0.0f/0.0f";
+        }
+    }
+
+    private static String toSourceString(double d) {
+        if (Double.isFinite(d))
+            return Double.toString(d);
+        else {
+            if (Double.isInfinite(d)) {
+                return (d < 0.0f) ? "-1.0/0.0": "1.0/0.0";
+            } else
+                return "0.0/0.0";
+        }
+    }
+
+    private static String toSourceString(char c) {
+        StringBuilder sb = new StringBuilder(4);
+        sb.append('\'');
+        sb.append(quote(c));
+        return sb.append('\'') .toString();
+    }
+
+    /**
+     * Escapes a character if it has an escape sequence or is
+     * non-printable ASCII.  Leaves non-ASCII characters alone.
+     */
+    private static String quote(char ch) {
+        switch (ch) {
+        case '\b':  return "\\b";
+        case '\f':  return "\\f";
+        case '\n':  return "\\n";
+        case '\r':  return "\\r";
+        case '\t':  return "\\t";
+        case '\'':  return "\\'";
+        case '\"':  return "\\\"";
+        case '\\':  return "\\\\";
+        default:
+            return (isPrintableAscii(ch))
+                ? String.valueOf(ch)
+                : String.format("\\u%04x", (int) ch);
+        }
+    }
+
+    /**
+     * Is a character printable ASCII?
+     */
+    private static boolean isPrintableAscii(char ch) {
+        return ch >= ' ' && ch <= '~';
+    }
+
+    private static String toSourceString(byte b) {
+        return String.format("(byte)0x%02x", b);
+    }
+
+    private static String toSourceString(long ell) {
+        return String.valueOf(ell) + "L";
+    }
+
+    private static String toSourceString(Enum<?> enumConstant) {
+        return enumConstant.name();
+    }
+
+    /**
+     * Return a string suitable for use in the string representation
+     * of an annotation.
+     */
+    private static String toSourceString(String s) {
+        StringBuilder sb = new StringBuilder();
+        sb.append('"');
+        for (int i = 0; i < s.length(); i++) {
+            sb.append(quote(s.charAt(i)));
+        }
+        sb.append('"');
+        return sb.toString();
+    }
+
+    private static Stream<String> convert(byte[] values) {
+        List<String> list = new ArrayList<>(values.length);
+        for (byte b : values)
+            list.add(toSourceString(b));
+        return list.stream();
+    }
+
+    private static Stream<String> convert(char[] values) {
+        List<String> list = new ArrayList<>(values.length);
+        for (char c : values)
+            list.add(toSourceString(c));
+        return list.stream();
+    }
+
+    private static Stream<String> convert(float[] values) {
+        List<String> list = new ArrayList<>(values.length);
+        for (float f : values) {
+            list.add(toSourceString(f));
+        }
+        return list.stream();
+    }
+
+    private static Stream<String> convert(short[] values) {
+        List<String> list = new ArrayList<>(values.length);
+        for (short s : values)
+            list.add(Short.toString(s));
+        return list.stream();
+    }
+
+    private static Stream<String> convert(boolean[] values) {
+        List<String> list = new ArrayList<>(values.length);
+        for (boolean b : values)
+            list.add(Boolean.toString(b));
+        return list.stream();
+    }
+
+    private static String stringStreamToString(Stream<String> stream) {
+        return stream.collect(Collectors.joining(", ", "{", "}"));
+    }
+
+    /**
+     * Implementation of dynamicProxy.equals(Object o)
+     */
+    private Boolean equalsImpl(Object proxy, Object o) {
+        if (o == proxy)
+            return true;
+
+        if (!type.isInstance(o))
+            return false;
+        for (Method memberMethod : getMemberMethods()) {
+            if (memberMethod.isSynthetic())
+                continue;
+            String member = memberMethod.getName();
+            Object ourValue = memberValues.get(member);
+            Object hisValue = null;
+            AnnotationInvocationHandler hisHandler = asOneOfUs(o);
+            if (hisHandler != null) {
+                hisValue = hisHandler.memberValues.get(member);
+            } else {
+                try {
+                    hisValue = memberMethod.invoke(o);
+                } catch (InvocationTargetException e) {
+                    return false;
+                } catch (IllegalAccessException e) {
+                    throw new AssertionError(e);
+                }
+            }
+            if (!memberValueEquals(ourValue, hisValue))
+                return false;
+        }
+        return true;
+    }
+
+    /**
+     * Returns an object's invocation handler if that object is a dynamic
+     * proxy with a handler of type AnnotationInvocationHandler.
+     * Returns null otherwise.
+     */
+    private AnnotationInvocationHandler asOneOfUs(Object o) {
+        if (Proxy.isProxyClass(o.getClass())) {
+            InvocationHandler handler = Proxy.getInvocationHandler(o);
+            if (handler instanceof AnnotationInvocationHandler)
+                return ((AnnotationInvocationHandler) handler);
+        }
+        return null;
+    }
+
+    /**
+     * Returns true iff the two member values in "dynamic proxy return form"
+     * are equal using the appropriate equality function depending on the
+     * member type.  The two values will be of the same type unless one of
+     * the containing annotations is ill-formed.  If one of the containing
+     * annotations is ill-formed, this method will return false unless the
+     * two members are identical object references.
+     */
+    private static boolean memberValueEquals(Object v1, Object v2) {
+        Class<?> type = v1.getClass();
+
+        // Check for primitive, string, class, enum const, annotation,
+        // or ExceptionProxy
+        if (!type.isArray())
+            return v1.equals(v2);
+
+        // Check for array of string, class, enum const, annotation,
+        // or ExceptionProxy
+        if (v1 instanceof Object[] && v2 instanceof Object[])
+            return Arrays.equals((Object[]) v1, (Object[]) v2);
+
+        // Check for ill formed annotation(s)
+        if (v2.getClass() != type)
+            return false;
+
+        // Deal with array of primitives
+        if (type == byte[].class)
+            return Arrays.equals((byte[]) v1, (byte[]) v2);
+        if (type == char[].class)
+            return Arrays.equals((char[]) v1, (char[]) v2);
+        if (type == double[].class)
+            return Arrays.equals((double[]) v1, (double[]) v2);
+        if (type == float[].class)
+            return Arrays.equals((float[]) v1, (float[]) v2);
+        if (type == int[].class)
+            return Arrays.equals((int[]) v1, (int[]) v2);
+        if (type == long[].class)
+            return Arrays.equals((long[]) v1, (long[]) v2);
+        if (type == short[].class)
+            return Arrays.equals((short[]) v1, (short[]) v2);
+        assert type == boolean[].class;
+        return Arrays.equals((boolean[]) v1, (boolean[]) v2);
+    }
+
+    /**
+     * Returns the member methods for our annotation type.  These are
+     * obtained lazily and cached, as they're expensive to obtain
+     * and we only need them if our equals method is invoked (which should
+     * be rare).
+     */
+    private Method[] getMemberMethods() {
+        Method[] value = memberMethods;
+        if (value == null) {
+            value = computeMemberMethods();
+            memberMethods = value;
+        }
+        return value;
+    }
+
+    @SuppressWarnings("removal")
+    private Method[] computeMemberMethods() {
+        return AccessController.doPrivileged(
+            new PrivilegedAction<Method[]>() {
+                public Method[] run() {
+                    final Method[] methods = type.getDeclaredMethods();
+                    validateAnnotationMethods(methods);
+                    AccessibleObject.setAccessible(methods, true);
+                    return methods;
+                }});
+    }
+
+    private transient volatile Method[] memberMethods;
+
+    /**
+     * Validates that a method is structurally appropriate for an
+     * annotation type. As of Java SE 8, annotation types cannot
+     * contain static methods and the declared methods of an
+     * annotation type must take zero arguments and there are
+     * restrictions on the return type.
+     */
+    private void validateAnnotationMethods(Method[] memberMethods) {
+        /*
+         * Specification citations below are from JLS
+         * 9.6.1. Annotation Type Elements
+         */
+        boolean valid = true;
+        Method currentMethod = null;
+        for(Method method : memberMethods) {
+            currentMethod = method;
+            int modifiers = method.getModifiers();
+            // Skip over methods that may be a static initializer or
+            // similar construct. A static initializer may be used for
+            // purposes such as initializing a lambda stored in an
+            // interface field.
+            if (method.isSynthetic() &&
+                (modifiers & (Modifier.STATIC | Modifier.PRIVATE)) != 0 &&
+                method.getParameterCount() == 0) {
+                continue;
+            }
+
+            /*
+             * "By virtue of the AnnotationTypeElementDeclaration
+             * production, a method declaration in an annotation type
+             * declaration cannot have formal parameters, type
+             * parameters, or a throws clause.
+             *
+             * "By virtue of the AnnotationTypeElementModifier
+             * production, a method declaration in an annotation type
+             * declaration cannot be default or static."
+             */
+            if (modifiers != (Modifier.PUBLIC | Modifier.ABSTRACT) ||
+                method.isDefault() ||
+                method.getParameterCount() != 0 ||
+                method.getExceptionTypes().length != 0) {
+                valid = false;
+                break;
+            }
+
+            /*
+             * "It is a compile-time error if the return type of a
+             * method declared in an annotation type is not one of the
+             * following: a primitive type, String, Class, any
+             * parameterized invocation of Class, an enum type
+             * (section 8.9), an annotation type, or an array type
+             * (chapter 10) whose element type is one of the preceding
+             * types."
+             */
+            Class<?> returnType = method.getReturnType();
+            if (returnType.isArray()) {
+                returnType = returnType.getComponentType();
+                if (returnType.isArray()) { // Only single dimensional arrays
+                    valid = false;
+                    break;
+                }
+            }
+
+            if (!((returnType.isPrimitive() && returnType != void.class) ||
+                  returnType == String.class ||
+                  returnType == Class.class ||
+                  returnType.isEnum() ||
+                  returnType.isAnnotation())) {
+                valid = false;
+                break;
+            }
+
+            /*
+             * "It is a compile-time error if any method declared in an
+             * annotation type has a signature that is
+             * override-equivalent to that of any public or protected
+             * method declared in class Object or in the interface
+             * java.lang.annotation.Annotation."
+             *
+             * The methods in Object or Annotation meeting the other
+             * criteria (no arguments, constrained return type, etc.)
+             * above are:
+             *
+             * String toString()
+             * int hashCode()
+             * Class<? extends Annotation> annotationType()
+             */
+            String methodName = method.getName();
+            if ((methodName.equals("toString") && returnType == String.class) ||
+                (methodName.equals("hashCode") && returnType == int.class) ||
+                (methodName.equals("annotationType") && returnType == Class.class)) {
+                valid = false;
+                break;
+            }
+        }
+        if (valid)
+            return;
+        else
+            throw new AnnotationFormatError("Malformed method on an annotation type: " +
+                                            currentMethod.toString());
+    }
+
+    /**
+     * Implementation of dynamicProxy.hashCode()
+     */
+    private int hashCodeImpl() {
+        int result = 0;
+        for (Map.Entry<String, Object> e : memberValues.entrySet()) {
+            result += (127 * e.getKey().hashCode()) ^
+                memberValueHashCode(e.getValue());
+        }
+        return result;
+    }
+
+    /**
+     * Computes hashCode of a member value (in "dynamic proxy return form")
+     */
+    private static int memberValueHashCode(Object value) {
+        Class<?> type = value.getClass();
+        if (!type.isArray())    // primitive, string, class, enum const,
+                                // or annotation
+            return value.hashCode();
+
+        if (type == byte[].class)
+            return Arrays.hashCode((byte[]) value);
+        if (type == char[].class)
+            return Arrays.hashCode((char[]) value);
+        if (type == double[].class)
+            return Arrays.hashCode((double[]) value);
+        if (type == float[].class)
+            return Arrays.hashCode((float[]) value);
+        if (type == int[].class)
+            return Arrays.hashCode((int[]) value);
+        if (type == long[].class)
+            return Arrays.hashCode((long[]) value);
+        if (type == short[].class)
+            return Arrays.hashCode((short[]) value);
+        if (type == boolean[].class)
+            return Arrays.hashCode((boolean[]) value);
+        return Arrays.hashCode((Object[]) value);
+    }
+
+    @java.io.Serial
+    private void readObject(ObjectInputStream s)
+        throws java.io.IOException, ClassNotFoundException {
+        ObjectInputStream.GetField fields = s.readFields();
+
+        @SuppressWarnings("unchecked")
+        Class<? extends Annotation> t = (Class<? extends Annotation>)fields.get("type", null);
+        @SuppressWarnings("unchecked")
+        Map<String, Object> streamVals = (Map<String, Object>)fields.get("memberValues", null);
+
+        // Check to make sure that types have not evolved incompatibly
+
+        AnnotationType annotationType = null;
+        try {
+            annotationType = AnnotationType.getInstance(t);
+        } catch(IllegalArgumentException e) {
+            // Class is no longer an annotation type; time to punch out
+            throw new java.io.InvalidObjectException("Non-annotation type in annotation serial stream");
+        }
+
+        Map<String, Class<?>> memberTypes = annotationType.memberTypes();
+        // consistent with runtime Map type
+        Map<String, Object> mv = new LinkedHashMap<>();
+
+        // If there are annotation members without values, that
+        // situation is handled by the invoke method.
+        for (Map.Entry<String, Object> memberValue : streamVals.entrySet()) {
+            String name = memberValue.getKey();
+            Object value = null;
+            Class<?> memberType = memberTypes.get(name);
+            if (memberType != null) {  // i.e. member still exists
+                value = memberValue.getValue();
+                if (!(memberType.isInstance(value) ||
+                      value instanceof ExceptionProxy)) {
+                    value = new AnnotationTypeMismatchExceptionProxy(
+                                toIdentityString(value))
+                        .setMember(annotationType.members().get(name));
+                }
+            }
+            mv.put(name, value);
+        }
+
+        UnsafeAccessor.setType(this, t);
+        UnsafeAccessor.setMemberValues(this, mv);
+    }
+
+    public static String toIdentityString(Object o) {
+        Objects.requireNonNull(o);
+        return o.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(o));
+    }
+
+    /**
+     * Gets an unmodifiable view on the member values.
+     */
+    Map<String, Object> memberValues() {
+        return Collections.unmodifiableMap(memberValues);
+    }
+
+    private static class UnsafeAccessor {
+        private static final jdk.internal.misc.Unsafe unsafe
+                = jdk.internal.misc.Unsafe.getUnsafe();
+        private static final long typeOffset = unsafe.objectFieldOffset
+                (AnnotationInvocationHandler.class, "type");
+        private static final long memberValuesOffset = unsafe.objectFieldOffset
+                (AnnotationInvocationHandler.class, "memberValues");
+
+        static void setType(AnnotationInvocationHandler o,
+                            Class<? extends Annotation> type) {
+            unsafe.putReference(o, typeOffset, type);
+        }
+
+        static void setMemberValues(AnnotationInvocationHandler o,
+                                    Map<String, Object> memberValues) {
+            unsafe.putReference(o, memberValuesOffset, memberValues);
+        }
+    }
+}
@@ -0,0 +1,872 @@
+/*
+ * Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+
+import java.lang.annotation.*;
+import java.lang.reflect.*;
+import java.nio.BufferUnderflowException;
+import java.nio.ByteBuffer;
+import java.util.*;
+import java.util.function.Supplier;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import jdk.internal.reflect.ConstantPool;
+
+import sun.reflect.annotation.AnnotationType;
+import sun.reflect.annotation.EnumConstantNotPresentExceptionProxy;
+import sun.reflect.annotation.ExceptionProxy;
+import sun.reflect.annotation.TypeNotPresentExceptionProxy;
+import sun.reflect.generics.parser.SignatureParser;
+import sun.reflect.generics.tree.TypeSignature;
+import sun.reflect.generics.factory.GenericsFactory;
+import sun.reflect.generics.factory.CoreReflectionFactory;
+import sun.reflect.generics.visitor.Reifier;
+import sun.reflect.generics.scope.ClassScope;
+
+/**
+ * Parser for Java programming language annotations.  Translates
+ * annotation byte streams emitted by compiler into annotation objects.
+ *
+ * @author  Josh Bloch
+ * @since   1.5
+ */
+public class AnnotationParser {
+    /**
+     * Parses the annotations described by the specified byte array.
+     * resolving constant references in the specified constant pool.
+     * The array must contain an array of annotations as described
+     * in the RuntimeVisibleAnnotations_attribute:
+     *
+     *   u2 num_annotations;
+     *   annotation annotations[num_annotations];
+     *
+     * @throws AnnotationFormatError if an annotation is found to be
+     *         malformed.
+     */
+    public static Map<Class<? extends Annotation>, Annotation> parseAnnotations(
+                byte[] rawAnnotations,
+                ConstantPool constPool,
+                Class<?> container) {
+        if (rawAnnotations == null)
+            return Collections.emptyMap();
+
+        try {
+            return parseAnnotations2(rawAnnotations, constPool, container, null);
+        } catch(BufferUnderflowException e) {
+            throw new AnnotationFormatError("Unexpected end of annotations.");
+        } catch(IllegalArgumentException e) {
+            // Type mismatch in constant pool
+            throw new AnnotationFormatError(e);
+        }
+    }
+
+    /**
+     * Like {@link #parseAnnotations(byte[], sun.reflect.ConstantPool, Class)}
+     * with an additional parameter {@code selectAnnotationClasses} which selects the
+     * annotation types to parse (other than selected are quickly skipped).<p>
+     * This method is used to parse select meta annotations in the construction
+     * phase of {@link AnnotationType} instances to prevent infinite recursion.
+     *
+     * @param selectAnnotationClasses an array of annotation types to select when parsing
+     */
+    @SafeVarargs
+    @SuppressWarnings("varargs") // selectAnnotationClasses is used safely
+    public static Map<Class<? extends Annotation>, Annotation> parseSelectAnnotations(
+                byte[] rawAnnotations,
+                ConstantPool constPool,
+                Class<?> container,
+                Class<? extends Annotation> ... selectAnnotationClasses) {
+        if (rawAnnotations == null)
+            return Collections.emptyMap();
+
+        try {
+            return parseAnnotations2(rawAnnotations, constPool, container, selectAnnotationClasses);
+        } catch(BufferUnderflowException e) {
+            throw new AnnotationFormatError("Unexpected end of annotations.");
+        } catch(IllegalArgumentException e) {
+            // Type mismatch in constant pool
+            throw new AnnotationFormatError(e);
+        }
+    }
+
+    private static Map<Class<? extends Annotation>, Annotation> parseAnnotations2(
+                byte[] rawAnnotations,
+                ConstantPool constPool,
+                Class<?> container,
+                Class<? extends Annotation>[] selectAnnotationClasses) {
+        Map<Class<? extends Annotation>, Annotation> result =
+            new LinkedHashMap<Class<? extends Annotation>, Annotation>();
+        ByteBuffer buf = ByteBuffer.wrap(rawAnnotations);
+        int numAnnotations = buf.getShort() & 0xFFFF;
+        for (int i = 0; i < numAnnotations; i++) {
+            Annotation a = parseAnnotation2(buf, constPool, container, false, selectAnnotationClasses);
+            if (a != null) {
+                Class<? extends Annotation> klass = a.annotationType();
+                if (AnnotationType.getInstance(klass).retention() == RetentionPolicy.RUNTIME &&
+                    result.put(klass, a) != null) {
+                        throw new AnnotationFormatError(
+                            "Duplicate annotation for class: "+klass+": " + a);
+            }
+        }
+        }
+        return result;
+    }
+
+    /**
+     * Parses the parameter annotations described by the specified byte array.
+     * resolving constant references in the specified constant pool.
+     * The array must contain an array of annotations as described
+     * in the RuntimeVisibleParameterAnnotations_attribute:
+     *
+     *    u1 num_parameters;
+     *    {
+     *        u2 num_annotations;
+     *        annotation annotations[num_annotations];
+     *    } parameter_annotations[num_parameters];
+     *
+     * Unlike parseAnnotations, rawAnnotations must not be null!
+     * A null value must be handled by the caller.  This is so because
+     * we cannot determine the number of parameters if rawAnnotations
+     * is null.  Also, the caller should check that the number
+     * of parameters indicated by the return value of this method
+     * matches the actual number of method parameters.  A mismatch
+     * indicates that an AnnotationFormatError should be thrown.
+     *
+     * @throws AnnotationFormatError if an annotation is found to be
+     *         malformed.
+     */
+    public static Annotation[][] parseParameterAnnotations(
+                    byte[] rawAnnotations,
+                    ConstantPool constPool,
+                    Class<?> container) {
+        try {
+            return parseParameterAnnotations2(rawAnnotations, constPool, container);
+        } catch(BufferUnderflowException e) {
+            throw new AnnotationFormatError(
+                "Unexpected end of parameter annotations.");
+        } catch(IllegalArgumentException e) {
+            // Type mismatch in constant pool
+            throw new AnnotationFormatError(e);
+        }
+    }
+
+    private static Annotation[][] parseParameterAnnotations2(
+                    byte[] rawAnnotations,
+                    ConstantPool constPool,
+                    Class<?> container) {
+        ByteBuffer buf = ByteBuffer.wrap(rawAnnotations);
+        int numParameters = buf.get() & 0xFF;
+        Annotation[][] result = new Annotation[numParameters][];
+
+        for (int i = 0; i < numParameters; i++) {
+            int numAnnotations = buf.getShort() & 0xFFFF;
+            List<Annotation> annotations =
+                new ArrayList<Annotation>(numAnnotations);
+            for (int j = 0; j < numAnnotations; j++) {
+                Annotation a = parseAnnotation(buf, constPool, container, false);
+                if (a != null) {
+                    AnnotationType type = AnnotationType.getInstance(
+                                              a.annotationType());
+                    if (type.retention() == RetentionPolicy.RUNTIME)
+                        annotations.add(a);
+                }
+            }
+            result[i] = annotations.toArray(EMPTY_ANNOTATIONS_ARRAY);
+        }
+        return result;
+    }
+
+    private static final Annotation[] EMPTY_ANNOTATIONS_ARRAY =
+                    new Annotation[0];
+
+    /**
+     * Parses the annotation at the current position in the specified
+     * byte buffer, resolving constant references in the specified constant
+     * pool.  The cursor of the byte buffer must point to an "annotation
+     * structure" as described in the RuntimeVisibleAnnotations_attribute:
+     *
+     * annotation {
+     *    u2    type_index;
+     *       u2    num_member_value_pairs;
+     *       {    u2    member_name_index;
+     *             member_value value;
+     *       }    member_value_pairs[num_member_value_pairs];
+     *    }
+     * }
+     *
+     * Returns the annotation, or null if the annotation's type cannot
+     * be found by the VM, or is not a valid annotation type.
+     *
+     * @param exceptionOnMissingAnnotationClass if true, throw
+     * TypeNotPresentException if a referenced annotation type is not
+     * available at runtime
+     */
+    static Annotation parseAnnotation(ByteBuffer buf,
+                                              ConstantPool constPool,
+                                              Class<?> container,
+                                              boolean exceptionOnMissingAnnotationClass) {
+       return parseAnnotation2(buf, constPool, container, exceptionOnMissingAnnotationClass, null);
+    }
+
+    @SuppressWarnings("unchecked")
+    private static Annotation parseAnnotation2(ByteBuffer buf,
+                                              ConstantPool constPool,
+                                              Class<?> container,
+                                              boolean exceptionOnMissingAnnotationClass,
+                                              Class<? extends Annotation>[] selectAnnotationClasses) {
+        int typeIndex = buf.getShort() & 0xFFFF;
+        Class<? extends Annotation> annotationClass = null;
+        String sig = "[unknown]";
+        try {
+            sig = constPool.getUTF8At(typeIndex);
+            annotationClass = (Class<? extends Annotation>)parseSig(sig, container);
+        } catch (NoClassDefFoundError e) {
+            if (exceptionOnMissingAnnotationClass)
+                // note: at this point sig is "[unknown]" or VM-style
+                // name instead of a binary name
+                throw new TypeNotPresentException(sig, e);
+            skipAnnotation(buf, false);
+            return null;
+        }
+        catch (TypeNotPresentException e) {
+            if (exceptionOnMissingAnnotationClass)
+                throw e;
+            skipAnnotation(buf, false);
+            return null;
+        }
+        if (selectAnnotationClasses != null && !contains(selectAnnotationClasses, annotationClass)) {
+            skipAnnotation(buf, false);
+            return null;
+        }
+        AnnotationType type = null;
+        try {
+            type = AnnotationType.getInstance(annotationClass);
+        } catch (IllegalArgumentException e) {
+            skipAnnotation(buf, false);
+            return null;
+        }
+
+        Map<String, Class<?>> memberTypes = type.memberTypes();
+        Map<String, Object> memberValues =
+            new LinkedHashMap<String, Object>(type.memberDefaults());
+
+        int numMembers = buf.getShort() & 0xFFFF;
+        for (int i = 0; i < numMembers; i++) {
+            int memberNameIndex = buf.getShort() & 0xFFFF;
+            String memberName = constPool.getUTF8At(memberNameIndex);
+            Class<?> memberType = memberTypes.get(memberName);
+
+            if (memberType == null) {
+                // Member is no longer present in annotation type; ignore it
+                skipMemberValue(buf);
+            } else {
+                Object value = parseMemberValue(memberType, buf, constPool, container);
+                if (value instanceof AnnotationTypeMismatchExceptionProxy)
+                    ((AnnotationTypeMismatchExceptionProxy) value).setMember(type.members().get(memberName));
+                memberValues.put(memberName, value);
+            }
+        }
+        return annotationForMap(annotationClass, memberValues);
+    }
+
+    /**
+     * Returns an annotation of the given type backed by the given
+     * member {@literal ->} value map.
+     */
+    @SuppressWarnings("removal")
+    public static Annotation annotationForMap(final Class<? extends Annotation> type,
+                                              final Map<String, Object> memberValues)
+    {
+        return AccessController.doPrivileged(new PrivilegedAction<Annotation>() {
+            public Annotation run() {
+                return (Annotation) Proxy.newProxyInstance(
+                    type.getClassLoader(), new Class<?>[] { type },
+                    new AnnotationInvocationHandler(type, memberValues));
+            }});
+    }
+
+    /**
+     * Parses the annotation member value at the current position in the
+     * specified byte buffer, resolving constant references in the specified
+     * constant pool.  The cursor of the byte buffer must point to a
+     * "member_value structure" as described in the
+     * RuntimeVisibleAnnotations_attribute:
+     *
+     *  member_value {
+     *    u1 tag;
+     *    union {
+     *       u2   const_value_index;
+     *       {
+     *           u2   type_name_index;
+     *           u2   const_name_index;
+     *       } enum_const_value;
+     *       u2   class_info_index;
+     *       annotation annotation_value;
+     *       {
+     *           u2    num_values;
+     *           member_value values[num_values];
+     *       } array_value;
+     *    } value;
+     * }
+     *
+     * The member must be of the indicated type. If it is not, this
+     * method returns an AnnotationTypeMismatchExceptionProxy.
+     */
+    @SuppressWarnings("unchecked")
+    public static Object parseMemberValue(Class<?> memberType,
+                                          ByteBuffer buf,
+                                          ConstantPool constPool,
+                                          Class<?> container) {
+        // Note that VMSupport.encodeAnnotation (used by JVMCI) may need to
+        // be updated if new annotation member types are added.
+        Object result = null;
+        int tag = buf.get();
+        switch(tag) {
+          case 'e':
+              return parseEnumValue((Class<? extends Enum<?>>)memberType, buf, constPool, container);
+          case 'c':
+              result = parseClassValue(buf, constPool, container);
+              break;
+          case '@':
+              result = parseAnnotation(buf, constPool, container, true);
+              break;
+          case '[':
+              return parseArray(memberType, buf, constPool, container);
+          default:
+              result = parseConst(tag, buf, constPool);
+        }
+
+        if (result == null) {
+            result = new AnnotationTypeMismatchExceptionProxy(
+                Proxy.isProxyClass(memberType)
+                        ? memberType.getInterfaces()[0].getName()
+                        : memberType.getName());
+        } else if (!(result instanceof ExceptionProxy) &&
+            !memberType.isInstance(result)) {
+            if (result instanceof Annotation) {
+                result = new AnnotationTypeMismatchExceptionProxy(
+                    result.toString());
+            } else {
+                result = new AnnotationTypeMismatchExceptionProxy(
+                    result.getClass().getName() + "[" + result + "]");
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Parses the primitive or String annotation member value indicated by
+     * the specified tag byte at the current position in the specified byte
+     * buffer, resolving constant reference in the specified constant pool.
+     * The cursor of the byte buffer must point to an annotation member value
+     * of the type indicated by the specified tag, as described in the
+     * RuntimeVisibleAnnotations_attribute:
+     *
+     *       u2   const_value_index;
+     */
+    private static Object parseConst(int tag,
+                                     ByteBuffer buf, ConstantPool constPool) {
+        int constIndex = buf.getShort() & 0xFFFF;
+        switch(tag) {
+          case 'B':
+            return Byte.valueOf((byte) constPool.getIntAt(constIndex));
+          case 'C':
+            return Character.valueOf((char) constPool.getIntAt(constIndex));
+          case 'D':
+            return Double.valueOf(constPool.getDoubleAt(constIndex));
+          case 'F':
+            return Float.valueOf(constPool.getFloatAt(constIndex));
+          case 'I':
+            return Integer.valueOf(constPool.getIntAt(constIndex));
+          case 'J':
+            return Long.valueOf(constPool.getLongAt(constIndex));
+          case 'S':
+            return Short.valueOf((short) constPool.getIntAt(constIndex));
+          case 'Z':
+            return Boolean.valueOf(constPool.getIntAt(constIndex) != 0);
+          case 's':
+            return constPool.getUTF8At(constIndex);
+          default:
+            throw new AnnotationFormatError(
+                "Invalid member-value tag in annotation: " + tag);
+        }
+    }
+
+    /**
+     * Parses the Class member value at the current position in the
+     * specified byte buffer, resolving constant references in the specified
+     * constant pool.  The cursor of the byte buffer must point to a "class
+     * info index" as described in the RuntimeVisibleAnnotations_attribute:
+     *
+     *       u2   class_info_index;
+     */
+    private static Object parseClassValue(ByteBuffer buf,
+                                          ConstantPool constPool,
+                                          Class<?> container) {
+        int classIndex = buf.getShort() & 0xFFFF;
+        try {
+            String sig = constPool.getUTF8At(classIndex);
+            return parseSig(sig, container);
+        } catch (NoClassDefFoundError e) {
+            return new TypeNotPresentExceptionProxy("[unknown]", e);
+        } catch (TypeNotPresentException e) {
+            return new TypeNotPresentExceptionProxy(e.typeName(), e.getCause());
+        }
+    }
+
+    private static Class<?> parseSig(String sig, Class<?> container) {
+        if (sig.equals("V")) return void.class;
+        SignatureParser parser = SignatureParser.make();
+        TypeSignature typeSig = parser.parseTypeSig(sig);
+        GenericsFactory factory = CoreReflectionFactory.make(container, ClassScope.make(container));
+        Reifier reify = Reifier.make(factory);
+        typeSig.accept(reify);
+        Type result = reify.getResult();
+        return toClass(result);
+    }
+    static Class<?> toClass(Type o) {
+        if (o instanceof GenericArrayType)
+            return Array.newInstance(toClass(((GenericArrayType) o).getGenericComponentType()), 0)
+                .getClass();
+        return (Class)o;
+    }
+
+    /**
+     * Parses the enum constant member value at the current position in the
+     * specified byte buffer, resolving constant references in the specified
+     * constant pool.  The cursor of the byte buffer must point to a
+     * "enum_const_value structure" as described in the
+     * RuntimeVisibleAnnotations_attribute:
+     *
+     *       {
+     *           u2   type_name_index;
+     *           u2   const_name_index;
+     *       } enum_const_value;
+     */
+    @SuppressWarnings({"rawtypes", "unchecked"})
+    private static Object parseEnumValue(Class<? extends Enum> enumType, ByteBuffer buf,
+                                         ConstantPool constPool,
+                                         Class<?> container) {
+        int typeNameIndex = buf.getShort() & 0xFFFF;
+        String typeName  = constPool.getUTF8At(typeNameIndex);
+        int constNameIndex = buf.getShort() & 0xFFFF;
+        String constName = constPool.getUTF8At(constNameIndex);
+        if (!enumType.isEnum() || enumType != parseSig(typeName, container)) {
+            return new AnnotationTypeMismatchExceptionProxy(
+                    typeName.substring(1, typeName.length() - 1).replace('/', '.') + "." + constName);
+        }
+
+        try {
+            return  Enum.valueOf(enumType, constName);
+        } catch(IllegalArgumentException e) {
+            return new EnumConstantNotPresentExceptionProxy(
+                (Class<? extends Enum<?>>)enumType, constName);
+        }
+    }
+
+    /**
+     * Parses the array value at the current position in the specified byte
+     * buffer, resolving constant references in the specified constant pool.
+     * The cursor of the byte buffer must point to an array value struct
+     * as specified in the RuntimeVisibleAnnotations_attribute:
+     *
+     *       {
+     *           u2    num_values;
+     *           member_value values[num_values];
+     *       } array_value;
+     *
+     * If the array values do not match arrayType, an
+     * AnnotationTypeMismatchExceptionProxy will be returned.
+     */
+    @SuppressWarnings("unchecked")
+    private static Object parseArray(Class<?> arrayType,
+                                     ByteBuffer buf,
+                                     ConstantPool constPool,
+                                     Class<?> container) {
+        int length = buf.getShort() & 0xFFFF;  // Number of array components
+        if (!arrayType.isArray()) {
+            return parseUnknownArray(length, buf);
+        }
+        Class<?> componentType = arrayType.getComponentType();
+
+        if (componentType == byte.class) {
+            return parseByteArray(length, buf, constPool);
+        } else if (componentType == char.class) {
+            return parseCharArray(length, buf, constPool);
+        } else if (componentType == double.class) {
+            return parseDoubleArray(length, buf, constPool);
+        } else if (componentType == float.class) {
+            return parseFloatArray(length, buf, constPool);
+        } else if (componentType == int.class) {
+            return parseIntArray(length, buf, constPool);
+        } else if (componentType == long.class) {
+            return parseLongArray(length, buf, constPool);
+        } else if (componentType == short.class) {
+            return parseShortArray(length, buf, constPool);
+        } else if (componentType == boolean.class) {
+            return parseBooleanArray(length, buf, constPool);
+        } else if (componentType == String.class) {
+            return parseStringArray(length, buf, constPool);
+        } else if (componentType == Class.class) {
+            return parseClassArray(length, buf, constPool, container);
+        } else if (componentType.isEnum()) {
+            return parseEnumArray(length, (Class<? extends Enum<?>>)componentType, buf,
+                                  constPool, container);
+        } else if (componentType.isAnnotation()) {
+            return parseAnnotationArray(length, (Class <? extends Annotation>)componentType, buf,
+                                        constPool, container);
+        } else {
+            return parseUnknownArray(length, buf);
+        }
+    }
+
+    private static Object parseByteArray(int length,
+                                  ByteBuffer buf, ConstantPool constPool) {
+        byte[] result = new byte[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'B') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = (byte) constPool.getIntAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseCharArray(int length,
+                                  ByteBuffer buf, ConstantPool constPool) {
+        char[] result = new char[length];
+        boolean typeMismatch = false;
+        byte tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'C') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = (char) constPool.getIntAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseDoubleArray(int length,
+                                    ByteBuffer buf, ConstantPool constPool) {
+        double[] result = new  double[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'D') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = constPool.getDoubleAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseFloatArray(int length,
+                                   ByteBuffer buf, ConstantPool constPool) {
+        float[] result = new float[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'F') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = constPool.getFloatAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseIntArray(int length,
+                                 ByteBuffer buf, ConstantPool constPool) {
+        int[] result = new  int[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'I') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = constPool.getIntAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseLongArray(int length,
+                                  ByteBuffer buf, ConstantPool constPool) {
+        long[] result = new long[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'J') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = constPool.getLongAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseShortArray(int length,
+                                   ByteBuffer buf, ConstantPool constPool) {
+        short[] result = new short[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'S') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = (short) constPool.getIntAt(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseBooleanArray(int length,
+                                     ByteBuffer buf, ConstantPool constPool) {
+        boolean[] result = new boolean[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 'Z') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = (constPool.getIntAt(index) != 0);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseStringArray(int length,
+                                    ByteBuffer buf,  ConstantPool constPool) {
+        String[] result = new String[length];
+        boolean typeMismatch = false;
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            if (tag == 's') {
+                int index = buf.getShort() & 0xFFFF;
+                result[i] = constPool.getUTF8At(index);
+            } else {
+                skipMemberValue(tag, buf);
+                typeMismatch = true;
+            }
+        }
+        return typeMismatch ? exceptionProxy(tag) : result;
+    }
+
+    private static Object parseClassArray(int length,
+                                          ByteBuffer buf,
+                                          ConstantPool constPool,
+                                          Class<?> container) {
+        return parseArrayElements(new Class<?>[length],
+                buf, 'c', () -> parseClassValue(buf, constPool, container));
+    }
+
+    private static Object parseEnumArray(int length, Class<? extends Enum<?>> enumType,
+                                         ByteBuffer buf,
+                                         ConstantPool constPool,
+                                         Class<?> container) {
+        return parseArrayElements((Object[]) Array.newInstance(enumType, length),
+                buf, 'e', () -> parseEnumValue(enumType, buf, constPool, container));
+    }
+
+    private static Object parseAnnotationArray(int length,
+                                               Class<? extends Annotation> annotationType,
+                                               ByteBuffer buf,
+                                               ConstantPool constPool,
+                                               Class<?> container) {
+        return parseArrayElements((Object[]) Array.newInstance(annotationType, length),
+                buf, '@', () -> parseAnnotation(buf, constPool, container, true));
+    }
+
+    private static Object parseArrayElements(Object[] result,
+                                             ByteBuffer buf,
+                                             int expectedTag,
+                                             Supplier<Object> parseElement) {
+        Object exceptionProxy = null;
+        for (int i = 0; i < result.length; i++) {
+            int tag = buf.get();
+            if (tag == expectedTag) {
+                Object value = parseElement.get();
+                if (value instanceof ExceptionProxy) {
+                    if (exceptionProxy == null)
+                        exceptionProxy = ((ExceptionProxy) value);
+                } else {
+                    result[i] = value;
+                }
+            } else {
+                skipMemberValue(tag, buf);
+                if (exceptionProxy == null) exceptionProxy = exceptionProxy(tag);
+            }
+        }
+        return (exceptionProxy != null) ? exceptionProxy : result;
+    }
+
+    private static Object parseUnknownArray(int length,
+                                            ByteBuffer buf) {
+        int tag = 0;
+
+        for (int i = 0; i < length; i++) {
+            tag = buf.get();
+            skipMemberValue(tag, buf);
+        }
+
+        return exceptionProxy(tag);
+    }
+
+    /**
+     * Returns an appropriate exception proxy for a mismatching array
+     * annotation where the erroneous array has the specified tag.
+     */
+    private static ExceptionProxy exceptionProxy(int tag) {
+        return new AnnotationTypeMismatchExceptionProxy(
+            "Array with component tag: " + (tag == 0 ? "0" : (char) tag));
+    }
+
+    /**
+     * Skips the annotation at the current position in the specified
+     * byte buffer.  The cursor of the byte buffer must point to
+     * an "annotation structure" OR two bytes into an annotation
+     * structure (i.e., after the type index).
+     *
+     * @param complete true if the byte buffer points to the beginning
+     *     of an annotation structure (rather than two bytes in).
+     */
+    private static void skipAnnotation(ByteBuffer buf, boolean complete) {
+        if (complete)
+            buf.getShort();   // Skip type index
+        int numMembers = buf.getShort() & 0xFFFF;
+        for (int i = 0; i < numMembers; i++) {
+            buf.getShort();   // Skip memberNameIndex
+            skipMemberValue(buf);
+        }
+    }
+
+    /**
+     * Skips the annotation member value at the current position in the
+     * specified byte buffer.  The cursor of the byte buffer must point to a
+     * "member_value structure."
+     */
+    private static void skipMemberValue(ByteBuffer buf) {
+        int tag = buf.get();
+        skipMemberValue(tag, buf);
+    }
+
+    /**
+     * Skips the annotation member value at the current position in the
+     * specified byte buffer.  The cursor of the byte buffer must point
+     * immediately after the tag in a "member_value structure."
+     */
+    private static void skipMemberValue(int tag, ByteBuffer buf) {
+        switch(tag) {
+          case 'e': // Enum value
+            buf.getInt();  // (Two shorts, actually.)
+            break;
+          case '@':
+            skipAnnotation(buf, true);
+            break;
+          case '[':
+            skipArray(buf);
+            break;
+          default:
+            // Class, primitive, or String
+            buf.getShort();
+        }
+    }
+
+    /**
+     * Skips the array value at the current position in the specified byte
+     * buffer.  The cursor of the byte buffer must point to an array value
+     * struct.
+     */
+    private static void skipArray(ByteBuffer buf) {
+        int length = buf.getShort() & 0xFFFF;
+        for (int i = 0; i < length; i++)
+            skipMemberValue(buf);
+    }
+
+    /**
+     * Searches for given {@code element} in given {@code array} by identity.
+     * Returns {@code true} if found {@code false} if not.
+     */
+    private static boolean contains(Object[] array, Object element) {
+        for (Object e : array)
+            if (e == element)
+                return true;
+        return false;
+    }
+
+    /*
+     * This method converts the annotation map returned by the parseAnnotations()
+     * method to an array.  It is called by Field.getDeclaredAnnotations(),
+     * Method.getDeclaredAnnotations(), and Constructor.getDeclaredAnnotations().
+     * This avoids the reflection classes to load the Annotation class until
+     * it is needed.
+     */
+    private static final Annotation[] EMPTY_ANNOTATION_ARRAY = new Annotation[0];
+    public static Annotation[] toArray(Map<Class<? extends Annotation>, Annotation> annotations) {
+        return annotations.values().toArray(EMPTY_ANNOTATION_ARRAY);
+    }
+
+    static Annotation[] getEmptyAnnotationArray() { return EMPTY_ANNOTATION_ARRAY; }
+}
@@ -0,0 +1,33 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+
+import sun.reflect.annotation.AnnotationType;
+
+/**
+ * @author Akash Yadav
+ */
+public class AnnotationTypeAccess {
+  private AnnotationTypeAccess() {
+    throw new UnsupportedOperationException();
+  }
+
+  public static Class<?> invocationHandlerReturnType(Class<?> cls) {
+    return AnnotationType.invocationHandlerReturnType(cls);
+  }
+}
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2004, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+import java.lang.annotation.*;
+import java.lang.reflect.Method;
+import sun.reflect.annotation.ExceptionProxy;
+
+/**
+ * ExceptionProxy for AnnotationTypeMismatchException.
+ *
+ * @author  Josh Bloch
+ * @since   1.5
+ */
+@SuppressWarnings("Since15")
+class AnnotationTypeMismatchExceptionProxy extends ExceptionProxy {
+    @java.io.Serial
+    private static final long serialVersionUID = 7844069490309503934L;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
+    private Method member; // Would be more robust to null-out in a writeObject method.
+    private final String foundType;
+
+    /**
+     * It turns out to be convenient to construct these proxies in
+     * two stages.  Since this is a private implementation class, we
+     * permit ourselves this liberty even though it's normally a very
+     * bad idea.
+     */
+    AnnotationTypeMismatchExceptionProxy(String foundType) {
+        this.foundType = foundType;
+    }
+
+    AnnotationTypeMismatchExceptionProxy setMember(Method member) {
+        this.member = member;
+        return this;
+    }
+
+    protected RuntimeException generateException() {
+        return new AnnotationTypeMismatchException(member, foundType);
+    }
+
+    @Override
+    public String toString() {
+        return "/* Warning type mismatch! \"" + foundType + "\" */" ;
+    }
+}
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2004, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+
+import sun.reflect.annotation.ExceptionProxy;
+
+/**
+ * ExceptionProxy for EnumConstantNotPresentException.
+ *
+ * @author  Josh Bloch
+ * @since   1.5
+ */
+public class EnumConstantNotPresentExceptionProxy extends ExceptionProxy {
+    @java.io.Serial
+    private static final long serialVersionUID = -604662101303187330L;
+    final Class<? extends Enum<?>> enumType;
+    final String constName;
+
+    public EnumConstantNotPresentExceptionProxy(Class<? extends Enum<?>> enumType,
+                                                String constName) {
+        this.enumType = enumType;
+        this.constName = constName;
+    }
+
+    protected RuntimeException generateException() {
+        return new EnumConstantNotPresentException(enumType, constName);
+    }
+
+    @Override
+    public String toString() {
+        return constName + " /* Warning: constant not present! */";
+    }
+}
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2004, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.sun.reflect.annotation;
+
+/**
+ * An instance of this class is stored in an AnnotationInvocationHandler's
+ * "memberValues" map in lieu of a value for an annotation member that
+ * cannot be returned due to some exceptional condition (typically some
+ * form of illegal evolution of the annotation class).  The ExceptionProxy
+ * instance describes the exception that the dynamic proxy should throw if
+ * it is queried for this member.
+ *
+ * @author  Josh Bloch
+ * @since   1.5
+ */
+@SuppressWarnings("Since15")
+public abstract class ExceptionProxy implements java.io.Serializable {
+    @java.io.Serial
+    private static final long serialVersionUID = 7241930048386631401L;
+    protected abstract RuntimeException generateException();
+}
@@ -0,0 +1 @@
+/build
@@ -0,0 +1,36 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import com.itsaky.androidide.plugins.JavacJackpotPlugin
+
+@Suppress("JavaPluginLanguageLevel")
+plugins {
+  id("java-library")
+}
+
+apply {
+  plugin(JavacJackpotPlugin::class.java)
+}
+
+java {
+  sourceCompatibility = JavaVersion.VERSION_17
+  targetCompatibility = JavaVersion.VERSION_17
+}
+
+dependencies {
+  api(projects.subprojects.javacDeps)
+}
@@ -0,0 +1,53 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.io.IOException;
+import java.nio.file.Path;
+
+public class JmodFileWrapper {
+
+    public static void checkMagic(Path file) throws IOException {
+        //TODO: perform validation
+    }
+
+}
@@ -0,0 +1,148 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.itsaky.androidide.javac.wrappers;
+
+import java.lang.reflect.Method;
+import java.nio.file.Path;
+import java.util.Collections;
+import java.util.Set;
+
+public class ModuleWrapper {
+    private final Class<?> clazz;
+
+    private ModuleWrapper(Class<?> c) {
+        this.clazz = c;
+    }
+
+    public static ModuleWrapper getModule(Class<?> clazz) {
+        return new ModuleWrapper(clazz);
+    }
+
+    public static ModuleWrapper getUnnamedModule(ClassLoader loader) {
+        return new ModuleWrapper(null);
+    }
+
+    public String getName() {
+        switch (clazz.getName()) {
+            case "jdk.javadoc.internal.api.JavadocTool": return "jdk.javadoc";
+            case "com.sun.tools.javac.api.JavacTool": return "jdk.compiler";
+            default: return "jdk.compiler"; //XXX
+        }
+    }
+
+    public boolean isNamed() {
+        return false;
+    }
+
+    public void addExports(String pack, ModuleWrapper to) {
+    }
+
+    public <S> void addUses(Class<S> service) {
+        if (this.clazz != null) {
+            ensureUses(this.clazz, service);
+        }
+        ensureUses(service);
+    }
+
+    static void ensureUses(Class<?> clazz) {
+        // ServiceLoaderWrapper.class.getModule().addUses(aClass);
+        Class<?> thisClass = ServiceLoaderWrapper.class;
+        ensureUses(thisClass, clazz);
+    }
+
+    private static void ensureUses(Class<?> thisClass, Class<?> clazz) {
+        try {
+            final Class<?> Module = Class.forName("java.lang.Module");
+            final Method addUses = Module.getDeclaredMethod("addUses", Class.class);
+            final Method getModule = Class.class.getDeclaredMethod("getModule");
+            final Object thisClassModule = getModule.invoke(thisClass);
+            addUses.invoke(thisClassModule, clazz);
+        } catch (SecurityException | ReflectiveOperationException t) {
+            //ignore - might log?
+        }
+    }
+
+    public static class ModuleFinder {
+
+        public static ModuleFinder of(Path... paths) {
+            return new ModuleFinder();
+        }
+
+    }
+
+    public static class ModuleLayer {
+
+        public static ModuleLayer boot() {
+            return new ModuleLayer();
+        }
+
+        public Configuration configuration() {
+            return new Configuration();
+        }
+
+        public ModuleLayer defineModulesWithOneLoader(Configuration cf, ClassLoader systemClassLoader) {
+            return new ModuleLayer();
+        }
+
+        public Set<ModuleWrapper> modules() {
+            return Collections.emptySet();
+        }
+    }
+
+    public static class Configuration {
+
+        public Configuration resolveAndBind(ModuleFinder of, ModuleFinder finder, Set<?> emptySet) {
+            return new Configuration();
+        }
+
+    }
+
+    public static class ModuleDescriptor {
+        public static class Version {
+            public static void parse(String v) {
+                //TODO: do validation
+            }
+        }
+    }
+
+}
@@ -0,0 +1,62 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import static java.util.Objects.requireNonNull;
+
+public class ObjectsWrapper {
+
+    public static <T> T requireNonNullElse(T value, T elseValue) {
+        if (value != null) {
+            return value;
+        }
+        requireNonNull(elseValue, "elseValue");
+        return elseValue;
+    }
+
+    public static int checkFromIndexSize(int fromIndex, int size, int length) {
+        if ((length | fromIndex | size) < 0 || size > length - fromIndex)
+            throw new IndexOutOfBoundsException("" + fromIndex + ", " + size + ", " + length);
+        return fromIndex;
+    }
+}
+
@@ -0,0 +1,53 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.io.File;
+import java.net.URI;
+import java.nio.file.Path;
+
+public class PathWrapper {
+    public static Path of(URI uri) {
+        //TODO: proper implementation:
+        return new File(uri).toPath();
+    }
+}
@@ -0,0 +1,63 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.lang.IllegalStateException;
+import java.lang.String;
+
+public final class RuntimeWR {
+    private RuntimeWR() {
+    }
+
+    public static final class Version {
+        private Version() {
+        }
+
+        public int feature() {
+            return 8;
+        }
+
+        public static RuntimeWR.Version parse(String v) {
+            throw new IllegalStateException();
+        }
+    }
+}
@@ -0,0 +1,123 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+import java.util.Spliterator;
+import java.util.function.Consumer;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+import javax.tools.ToolProvider;
+
+public class ServiceLoaderWrapper<T> implements Iterable<T> {
+    private final ServiceLoader<T> loader;
+
+    public ServiceLoaderWrapper(ServiceLoader<T> loader) {
+        this.loader = loader;
+    }
+
+    public static <T> ServiceLoader<T> load(ModuleWrapper.ModuleLayer layer, Class<T> aClass) {
+        ModuleWrapper.ensureUses(aClass);
+        return ServiceLoader.load(aClass); //XXX
+    }
+
+    public static <T> ServiceLoaderWrapper<T> load(Class<T> aClass) {
+        ModuleWrapper.ensureUses(aClass);
+        return new ServiceLoaderWrapper<T>(ServiceLoader.load(aClass));
+    }
+
+    public static <T> ServiceLoaderWrapper<T> load(Class<T> aClass, ClassLoader classLoader) {
+        ModuleWrapper.ensureUses(aClass);
+        return new ServiceLoaderWrapper<T>(ServiceLoader.load(aClass, classLoader));
+    }
+
+    public static <T> ServiceLoader<T> loadWithClassLoader(Class<T> aClass, ClassLoader classLoader) {
+        ModuleWrapper.ensureUses(aClass);
+        return ServiceLoader.load(aClass, classLoader);
+    }
+
+    public static <T> ServiceLoader<T> loadTool(Class<T> toolClass) {
+        ModuleWrapper.ensureUses(toolClass);
+        ServiceLoader<T> res = ServiceLoader.load(toolClass, ToolProvider.class.getClassLoader());
+        if (res.iterator().hasNext()) {
+            return res;
+        }
+        return ServiceLoader.load(toolClass, ClassLoader.getSystemClassLoader());
+    }
+
+    public Stream<Provider<T>> stream() {
+        return StreamSupport.stream(loader.spliterator(), false)
+                             .map(v -> new Provider<T>() {
+            @Override
+            public Class<? extends T> type() {
+                return (Class<T>) v.getClass();
+            }
+
+            @Override
+            public T get() {
+                return v;
+            }
+                             });
+    }
+
+    @Override
+    public Iterator<T> iterator() {
+        return loader.iterator();
+    }
+
+    @Override
+    public void forEach(Consumer<? super T> action) {
+        loader.forEach(action);
+    }
+
+    @Override
+    public Spliterator<T> spliterator() {
+        return loader.spliterator();
+    }
+
+    public interface Provider<T> {
+        public Class<? extends T> type();
+        public T get();
+    }
+
+}
@@ -0,0 +1,179 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class StringWrapper {
+
+    public static String stripIndent(String str) {
+        //prototype only, needs testing and performance improvements:
+        String[] lines = lines(str);
+        int indent = Arrays.stream(lines)
+                           .mapToInt((s) -> {
+                                int at = 0;
+                                while (at < s.length() && Character.isWhitespace(s.charAt(at))) {
+                                    at++;
+                                }
+                                if (at == s.length()) {
+                                    return Integer.MAX_VALUE;
+                                }
+                                return at;
+                           }).min()
+                           .orElse(Integer.MAX_VALUE);
+        if (lines.length > 0 && isBlank(lines[lines.length - 1])) {
+            indent = Math.min(indent, lines[lines.length - 1].length());
+        }
+        int indentFin = indent;
+        return Arrays.stream(lines).map(line -> {
+                if (line.length() <= indentFin) {
+                    return "";
+                }
+                String l = line.substring(indentFin);
+                int at = l.length() - 1;
+                while (at >= 0 && Character.isWhitespace(l.charAt(at))) {
+                    at--;
+                }
+                return l.substring(0, at + 1);
+            }).collect(Collectors.joining("\n"));
+    }
+
+    public static String stripTrailing(String str) {
+        int end = str.length();
+        while (end > 0 && Character.isWhitespace(str.charAt(end - 1)))
+            end--;
+        return str.substring(0, end);
+    }
+
+    public static boolean isBlank(String s) {
+        int at = 0;
+        while (at < s.length() && Character.isWhitespace(s.charAt(at))) {
+            at++;
+        }
+        return at == s.length();
+    }
+
+    //copied from nb-javac:
+        public static String translateEscapes(String str) {
+            if (str.isEmpty()) {
+                return "";
+            }
+            char[] chars = str.toCharArray();
+            int length = chars.length;
+            int from = 0;
+            int to = 0;
+            while (from < length) {
+                char ch = chars[from++];
+                if (ch == '\\') {
+                    ch = from < length ? chars[from++] : '\0';
+                    switch (ch) {
+                    case 'b':
+                        ch = '\b';
+                        break;
+                    case 'f':
+                        ch = '\f';
+                        break;
+                    case 'n':
+                        ch = '\n';
+                        break;
+                    case 'r':
+                        ch = '\r';
+                        break;
+                    case 't':
+                        ch = '\t';
+                        break;
+                    case 's':
+                        ch = ' ';
+                        break;
+                    case '\'':
+                    case '\"':
+                    case '\\':
+                        // as is
+                        break;
+                    case '0': case '1': case '2': case '3':
+                    case '4': case '5': case '6': case '7':
+                        int limit = Integer.min(from + (ch <= '3' ? 2 : 1), length);
+                        int code = ch - '0';
+                        while (from < limit) {
+                            ch = chars[from];
+                            if (ch < '0' || '7' < ch) {
+                                break;
+                            }
+                            from++;
+                            code = (code << 3) | (ch - '0');
+                        }
+                        ch = (char)code;
+                        break;
+                    case '\n': continue;
+                    default: {
+                        String msg = String.format(
+                            "Invalid escape sequence: \\%c \\\\u%04X",
+                            ch, (int)ch);
+                        throw new IllegalArgumentException(msg);
+                    }
+                    }
+                }
+
+                chars[to++] = ch;
+            }
+
+            return new String(chars, 0, to);
+        }
+
+    private static String[] lines(String txt) {
+        List<String> arr = new ArrayList<>();
+        int at = 0;
+        for (;;) {
+            int next = txt.indexOf('\n', at);
+            if (next == -1) {
+                arr.add(txt.substring(at));
+                break;
+            }
+            arr.add(txt.substring(at, next));
+            at = next + 1;
+        }
+        return arr.toArray(new String[0]);
+    }
+}
@@ -0,0 +1,205 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.itsaky.androidide.javac.wrappers;
+
+import java.io.IOException;
+import java.lang.ref.Reference;
+import java.lang.ref.SoftReference;
+import java.net.JarURLConnection;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.file.DirectoryStream;
+import java.nio.file.FileStore;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.PathMatcher;
+import java.nio.file.Paths;
+import java.nio.file.WatchService;
+import java.nio.file.attribute.UserPrincipalLookupService;
+import java.nio.file.spi.FileSystemProvider;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+public class VMWrapper {
+    private VMWrapper() {
+    }
+
+    public static String[] getRuntimeArguments() {
+        return new String[0];
+    }
+
+    private static final String[] symbolFileLocation = { "lib", "ct.sym" };
+    private static Reference<Path> cachedCtSym = new SoftReference<>(null);
+
+    public static Path findCtSym() {
+        Path obj = cachedCtSym.get();
+        if (obj instanceof Path) {
+            return obj;
+        }
+        try {
+            ClassLoader loader = VMWrapper.class.getClassLoader();
+            if (loader == null) {
+                loader = ClassLoader.getSystemClassLoader();
+            }
+            Enumeration<URL> en = loader.getResources("META-INF/services/com.sun.tools.javac.platform.PlatformProvider");
+            URL res = en.hasMoreElements() ? en.nextElement() : null;
+            if (res == null) {
+                //runnning inside a JDK image, try to look for lib/ct.sym:
+                String javaHome = System.getProperty("java.home");
+                Path file = Paths.get(javaHome);
+                for (String name : symbolFileLocation) {
+                    file = file.resolve(name);
+                }
+                if (!Files.exists(file)) {
+                    throw new IllegalStateException("Cannot find ct.sym at " + file);
+                }
+                return FileSystems.newFileSystem(file, (ClassLoader)null).getRootDirectories().iterator().next();
+            }
+            if (!res.getProtocol().equals("jar")) {
+                res = en.hasMoreElements() ? en.nextElement() : null;
+            }
+            URL jar = ((JarURLConnection)res.openConnection()).getJarFileURL();
+            Path path = Paths.get(jar.toURI());
+            FileSystem fs = FileSystems.newFileSystem(path, (ClassLoader) null);
+            Path ctSym = fs.getPath("META-INF", "ct.sym");
+            cachedCtSym = new SoftReference<>(ctSym);
+            return ctSym;
+        } catch (IOException | URISyntaxException ex) {
+            throw new IllegalStateException(ex);
+        }
+    }
+
+    public static DirectoryStream<Path> newDirectoryStream(Path dir) throws IOException {
+        List<Path> all = new ArrayList<>();
+        for (Path ch : Files.newDirectoryStream(dir)) {
+            final String fileName = ch.getFileName().toString();
+            if (fileName.endsWith("/")) {
+                all.add(dir.resolve(fileName.substring(0, fileName.length() - 1)));
+            } else {
+                all.add(ch);
+            }
+        }
+        return new DirectoryStream<Path>() {
+            @Override
+            public Iterator<Path> iterator() {
+                return all.iterator();
+            }
+
+            @Override
+            public void close() {
+            }
+        };
+    }
+
+    public static FileSystem pathFs(Path p) {
+        return new FileSystem() {
+            @Override
+            public FileSystemProvider provider() {
+                return p.getFileSystem().provider();
+            }
+
+            @Override
+            public void close() throws IOException {
+            }
+
+            @Override
+            public boolean isOpen() {
+                return p.getFileSystem().isOpen();
+            }
+
+            @Override
+            public boolean isReadOnly() {
+                return p.getFileSystem().isReadOnly();
+            }
+
+            @Override
+            public String getSeparator() {
+                return p.getFileSystem().getSeparator();
+            }
+
+            @Override
+            public Iterable<Path> getRootDirectories() {
+                return Collections.singleton(p);
+            }
+
+            @Override
+            public Iterable<FileStore> getFileStores() {
+                return p.getFileSystem().getFileStores();
+            }
+
+            @Override
+            public Set<String> supportedFileAttributeViews() {
+                return p.getFileSystem().supportedFileAttributeViews();
+            }
+
+            @Override
+            public Path getPath(String first, String... more) {
+                Path r = p.resolve(first);
+                for (String m : more) {
+                    r = r.resolve(m);
+                }
+                return r;
+            }
+
+            @Override
+            public PathMatcher getPathMatcher(String syntaxAndPattern) {
+                return p.getFileSystem().getPathMatcher(syntaxAndPattern);
+            }
+
+            @Override
+            public UserPrincipalLookupService getUserPrincipalLookupService() {
+                return p.getFileSystem().getUserPrincipalLookupService();
+            }
+
+            @Override
+            public WatchService newWatchService() throws IOException {
+                return p.getFileSystem().newWatchService();
+            }
+        };
+    }
+}
@@ -0,0 +1 @@
+com.itsaky.androidide.com.sun.tools.javac.platform.JDKPlatformProvider
@@ -0,0 +1 @@
+com.itsaky.androidide.com.sun.tools.javac.api.JavacTool
@@ -0,0 +1,363 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+java.util.Set.of($args$) => java.util.Collections.unmodifiableSet(new java.util.HashSet<>(java.util.Arrays.asList($args$)));;
+java.util.List.of($args$) => java.util.Collections.unmodifiableList(java.util.Arrays.asList($args$));;
+java.util.List.copyOf($list) => java.util.Collections.unmodifiableList(new java.util.ArrayList<>($list));;
+java.util.Map.of($k, $v) => java.util.Collections.unmodifiableMap(java.util.Collections.singletonMap($k, $v));;
+
+//XXX: incorrect!
+java.lang.Runtime.version().feature() =>
+"1.8".equals(System.getProperty("java.specification.version")) ? 8 : Integer.parseInt(System.getProperty("java.specification.version"))
+;;
+
+
+@java.io.Serial => ;;
+@java.lang.Deprecated($arg1, $args$) => @java.lang.Deprecated;;
+
+
+$1.flip() :: $1 instanceof java.nio.ByteBuffer
+=>
+((ByteBuffer) $1.flip())
+;;
+
+$1.clear() :: $1 instanceof java.nio.ByteBuffer
+=>
+((ByteBuffer) $1.clear())
+;;
+
+$1.flip() :: $1 instanceof java.nio.CharBuffer && !parentMatches("$1.flip();")
+=>
+((CharBuffer) $1.flip())
+;;
+
+java.nio.file.Path.of($uri) :: $uri instanceof java.net.URI
+=>
+com.itsaky.androidide.javac.wrappers.PathWrapper.of($uri)
+;;
+
+java.lang.module.ModuleDescriptor
+=>
+com.itsaky.androidide.javac.wrappers.ModuleWrapper.ModuleDescriptor
+;;
+
+$class.getModule() :: $class instanceof java.lang.Class
+=>
+com.itsaky.androidide.javac.wrappers.ModuleWrapper.getModule($class)
+;;
+
+$cl.getUnnamedModule() :: $cl instanceof java.lang.ClassLoader
+=>
+com.itsaky.androidide.javac.wrappers.ModuleWrapper.getUnnamedModule($cl)
+;;
+
+java.lang.Runtime.Version => com.itsaky.androidide.javac.wrappers.RuntimeWR.Version;;
+
+java.lang.Module => com.itsaky.androidide.javac.wrappers.ModuleWrapper;;
+
+java.lang.module.ModuleFinder => com.itsaky.androidide.javac.wrappers.ModuleWrapper.ModuleFinder;;
+java.lang.ModuleLayer => com.itsaky.androidide.javac.wrappers.ModuleWrapper.ModuleLayer;;
+java.lang.module.Configuration => com.itsaky.androidide.javac.wrappers.ModuleWrapper.Configuration;;
+
+java.util.ServiceLoader.load($layer, $class) :: $layer instanceof java.lang.ModuleLayer && $class instanceof java.lang.Class
+=>
+com.itsaky.androidide.javac.wrappers.ServiceLoaderWrapper.load($layer, $class)
+;;
+
+java.util.ServiceLoader.load($class, $loader) :: $loader instanceof java.lang.ClassLoader && $class instanceof java.lang.Class && !inClass("com.itsaky.androidide.com.sun.tools.doclint.DocLint") && !inClass("com.itsaky.androidide.javax.tools.ToolProvider");
+=>
+com.itsaky.androidide.javac.wrappers.ServiceLoaderWrapper.loadWithClassLoader($class, $loader)
+;;
+
+java.util.ServiceLoader.load($class, $loader) :: $loader instanceof java.lang.ClassLoader && $class instanceof java.lang.Class && inClass("com.itsaky.androidide.javax.tools.ToolProvider");
+=>
+com.itsaky.androidide.javac.wrappers.ServiceLoaderWrapper.loadTool($class)
+;;
+
+jdk.internal.jmod.JmodFile => com.itsaky.androidide.javac.wrappers.JmodFileWrapper;;
+
+$1.isEmpty() :: $1 instanceof java.util.Optional
+=>
+!$1.isPresent()
+;;
+
+java.util.Objects.requireNonNullElse($obj, $def)
+=>
+com.itsaky.androidide.javac.wrappers.ObjectsWrapper.requireNonNullElse($obj, $def)
+;;
+
+java.util.Objects.checkFromIndexSize($from, $size, $len)
+=>
+com.itsaky.androidide.javac.wrappers.ObjectsWrapper.checkFromIndexSize($from, $size, $len)
+;;
+
+java.util.ServiceLoader :: inClass("com.itsaky.androidide.com.sun.tools.doclint.DocLint")
+=>
+com.itsaky.androidide.javac.wrappers.ServiceLoaderWrapper
+;;
+
+$1.stripTrailing() :: $1 instanceof java.lang.String
+=>
+$1.replaceAll("\\p{javaWhitespace}+$", "")
+;;
+
+$1.stripLeading() :: $1 instanceof java.lang.String
+=>
+$1.replaceAll("^\\p{javaWhitespace}+", "")
+;;
+
+$1.strip() :: $1 instanceof java.lang.String
+=>
+$1.replaceAll("^\\p{javaWhitespace}+", "").replaceAll("\\p{javaWhitespace}+$", "")
+;;
+
+$1.stripIndent() :: $1 instanceof java.lang.String
+=>
+com.itsaky.androidide.javac.wrappers.StringWrapper.stripIndent($1)
+;;
+
+$1.stripTrailing() //:: $1 instanceof java.lang.String
+=>
+com.itsaky.androidide.javac.wrappers.StringWrapper.stripTrailing($1)
+;;
+
+$1.translateEscapes() :: $1 instanceof java.lang.String
+=>
+com.itsaky.androidide.javac.wrappers.StringWrapper.translateEscapes($1)
+;;
+
+$1.isBlank() :: $1 instanceof java.lang.String
+=>
+com.itsaky.androidide.javac.wrappers.StringWrapper.isBlank($1)
+;;
+
+$1.formatted($args$) :: $1 instanceof java.lang.String
+=>
+String.format($1, $args$)
+;;
+
+jdk.internal.misc.VM => com.itsaky.androidide.javac.wrappers.VMWrapper;;
+
+java.lang.ClassLoader.getSystemClassLoader() :: !inClass("com.itsaky.androidide.javax.tools.ToolProvider")
+=> com.itsaky.androidide.javax.tools.ToolProvider.class.getClassLoader();;
+
+//TODO: workaround for the NetBeans' approach to javac loading using two different ClassLoaders:
+public static com.itsaky.androidide.com.sun.source.util.JavacTask instance(com.itsaky.androidide.javax.annotation.processing.ProcessingEnvironment processingEnvironment) {$whatever$;}
+=>
+public static com.itsaky.androidide.com.sun.source.util.JavacTask instance(com.itsaky.androidide.javax.annotation.processing.ProcessingEnvironment processingEnvironment) {
+    if (!processingEnvironment.getClass().getName().equals(
+            "com.itsaky.androidide.com.sun.tools.javac.processing.JavacProcessingEnvironment"))
+        throw new IllegalArgumentException();
+
+    try {
+        //Cannot refer to the implementation directly, needs to use reflection:
+        java.lang.reflect.Method m = processingEnvironment.getClass().getMethod("getJavacTask");
+
+        return (JavacTask) m.invoke(processingEnvironment);
+    } catch (NoSuchMethodException ex) {
+        throw new UnsupportedOperationException(ex);
+    } catch (SecurityException ex) {
+        throw new UnsupportedOperationException(ex);
+    } catch (IllegalAccessException ex) {
+        throw new UnsupportedOperationException(ex);
+    } catch (IllegalArgumentException ex) {
+        throw new UnsupportedOperationException(ex);
+    } catch (java.lang.reflect.InvocationTargetException ex) {
+        throw new UnsupportedOperationException(ex);
+    }
+}
+;;
+
+$1.resolve("jrt-fs.jar").toUri().toURL() :: $1 instanceof java.nio.file.Path
+=>
+$1.resolve("lib").resolve("jrt-fs.jar").toUri().toURL()
+;;
+
+
+com.itsaky.androidide.javax.tools.ToolProvider.getSystemTool($class, $module, $name)
+=>
+$class.cast(((java.util.function.Supplier<Object>) () -> {
+    try {
+       Object v;
+       try {
+            v = com.itsaky.androidide.javax.tools.ToolProvider.getSystemTool($class, $module, $name);
+        } catch (Error err) {
+            v = null;
+        }
+       if (v == null) {
+           v = Class.forName($name).newInstance();
+       }
+       return $class.cast(v);
+    } catch (Throwable t) {
+        throw new Error(t);
+    }
+}).get())
+;;
+
+static java.nio.file.Path findCtSym() {
+    $code$
+}
+=>
+static java.nio.file.Path findCtSym() {
+    return com.itsaky.androidide.javac.wrappers.VMWrapper.findCtSym()
+}
+;;
+
+java.nio.file.FileSystems.newFileSystem($path, $a2)
+:: inClass("com.itsaky.androidide.com.sun.tools.javac.platform.JDKPlatformProvider")
+=>
+com.itsaky.androidide.javac.wrappers.VMWrapper.pathFs($path)
+;;
+
+/*
+String $v = Character.toString($ch); :: $ch instanceof char
+=>
+if (!Character.isJavaIdentifierPart($ch)) {
+    continue;
+}
+String $v = "" + $ch;
+;;
+*/
+
+java.nio.file.Files.newDirectoryStream($a1)
+:: inClass("com.itsaky.androidide.com.sun.tools.javac.platform.JDKPlatformProvider")
+=>
+com.itsaky.androidide.javac.wrappers.VMWrapper.newDirectoryStream($a1)
+;;
+
+$1.toList() :: $1 instanceof java.util.stream.Stream
+=>
+$1.collect(java.util.stream.Collectors.toList())
+;;
+
+//to eliminate imports:
+com.itsaky.androidide.jdk.internal.javac.PreviewFeature
+=>
+java.lang.VirtualMachineError
+;;
+
+//to eliminate imports:
+jdk.internal.javac.NoPreview
+=>
+java.lang.VirtualMachineError
+;;
+
+//to eliminate imports:
+java.io.Serial
+=>
+java.lang.VirtualMachineError
+;;
+
+// fallback to highest available ct.sym
+com.itsaky.androidide.com.sun.tools.javac.platform.PlatformUtils.lookupPlatformDescription($s)
+=>
+((java.util.function.Supplier<com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription>) () -> {
+    final String version = $s;
+    com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription pd = com.itsaky.androidide.com.sun.tools.javac.platform.PlatformUtils.lookupPlatformDescription(version);
+    if (pd != null) {
+        return pd;
+    }
+
+    com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription fallback = null;
+    for (int numVersion = Integer.valueOf(version); fallback == null; numVersion--) {
+        fallback = PlatformUtils.lookupPlatformDescription("" + numVersion);
+    }
+    if (fallback == null) {
+        throw new NullPointerException("No platform found for " + version);
+    }
+    final com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription delegate = fallback;
+
+    return new com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription() {
+        @Override
+        public com.itsaky.androidide.javax.tools.JavaFileManager getFileManager() {
+            return delegate.getFileManager();
+        }
+
+        @Override
+        public String getSourceVersion() {
+            return version;
+        }
+
+        @Override
+        public String getTargetVersion() {
+            return version;
+        }
+
+        @Override
+        public java.util.List<PlatformDescription.PluginInfo<com.itsaky.androidide.javax.annotation.processing.Processor>> getAnnotationProcessors() {
+            return delegate.getAnnotationProcessors();
+        }
+
+        @Override
+        public java.util.List<com.itsaky.androidide.com.sun.tools.javac.platform.PlatformDescription.PluginInfo<com.itsaky.androidide.com.sun.source.util.Plugin>> getPlugins() {
+            return delegate.getPlugins();
+        }
+
+        @Override
+        public java.util.List<String> getAdditionalOptions() {
+            return delegate.getAdditionalOptions();
+        }
+
+        @Override
+        public void close() throws IOException {
+            delegate.close();
+        }
+    };
+}).get();
+;;
+
+$cs.isEmpty() :: $cs instanceof java.lang.CharSequence
+=>
+($cs.length() == 0)
+;;
+
+$coll.toArray($type[]::new) :: inClass("com.itsaky.androidide.com.sun.tools.javac.comp.Flow")
+=>
+$coll.toArray(new $type[0])
+;;
+
+$coll.toArray($expr) :: inClass("com.itsaky.androidide.com.sun.tools.javac.comp.Flow") && containsAny($expr, "new com.itsaky.androidide.com.sun.tools.javac.code.Type[$s]")
+=>
+$coll.toArray(new com.itsaky.androidide.com.sun.tools.javac.code.Type[0])
+;;
+
+
+Iterable<String> $it;
+try {
+    $any$;
+} catch $catches$ :: inClass("com.itsaky.androidide.com.sun.tools.javac.main.Main")
+=>
+Iterable<String> $it = java.util.Arrays.asList(argv);
+;;
+
+jdk.internal.opt.CommandLine
+=>
+java.lang.VirtualMachineError
+;;
+
+jdk.internal.opt.CommandLine.UnmatchedQuote
+=>
+java.lang.VirtualMachineError
+;;
@@ -0,0 +1,41 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+sun.reflect.annotation.ExceptionProxy
+=>
+com.itsaky.androidide.sun.reflect.annotation.ExceptionProxy
+;;
+
+sun.reflect.annotation.AnnotationParser
+=>
+com.itsaky.androidide.sun.reflect.annotation.AnnotationParser
+;;
+
+sun.reflect.annotation.EnumConstantNotPresentExceptionProxy
+=>
+com.itsaky.androidide.sun.reflect.annotation.EnumConstantNotPresentExceptionProxy
+;;
+
+sun.reflect.annotation.AnnotationTypeMismatchExceptionProxy
+=>
+com.itsaky.androidide.sun.reflect.annotation.AnnotationTypeMismatchExceptionProxy
+;;
+
+sun.reflect.annotation.AnnotationType.invocationHandlerReturnType($returnClass)
+=>
+com.itsaky.androidide.sun.reflect.annotation.AnnotationTypeAccess.invocationHandlerReturnType($returnClass)
+;;
				`@@ -0,0 +1 @@`
				`com.itsaky.androidide.com.sun.tools.javac.platform.JDKPlatformProvider`