fix: do not reinstall default EventBus instance if already installed (fixes #809)

app/src/main/java/com/itsaky/androidide/app/IDEApplication.kt

@@ -69,7 +69,7 @@ class IDEApplication : BaseApplication() {
       .addIndex(ProjectsApiEventsIndex())
       .addIndex(LspApiEventsIndex())
       .addIndex(LspJavaEventsIndex())
-      .installDefaultEventBus()
+      .installDefaultEventBus(true)
 
     AppCompatDelegate.setDefaultNightMode(uiMode)
 

eventbus/src/main/java/org/greenrobot/eventbus/EventBusBuilder.java

@@ -168,15 +168,23 @@ public class EventBusBuilder {
     }
   }
 
+  public EventBus installDefaultEventBus() {
+    return installDefaultEventBus(false);
+  }
+
   /**
    * Installs the default EventBus returned by {@link EventBus#getDefault()} using this builders'
    * values. Must be done only once before the first usage of the default EventBus.
    *
    * @throws EventBusException if there's already a default EventBus instance in place
    */
-  public EventBus installDefaultEventBus() {
+  public EventBus installDefaultEventBus(boolean ignoreIfInstalled) {
     synchronized (EventBus.class) {
       if (EventBus.defaultInstance != null) {
+        if (ignoreIfInstalled) {
+          return EventBus.defaultInstance;
+        }
+
         throw new EventBusException(
             "Default instance already exists."
                 + " It may be only set once before it's used the first time to ensure consistent behavior.");