Program: 318
Project: 318
Buggy source:
private void writeSpecificEventData(JsonWriter writer,Event event){
  try {
    GsonSerializationContext serializationContext=new GsonSerializationContext(null);
    if (event instanceof InputEvent) {
      InputEvent e=(InputEvent)event;
      writer.name("String_Node_Str").value(e.getDelta());
      writer.name("String_Node_Str").value(e.isConsumed());
      writer.name("String_Node_Str").value(e.getTarget().getId());
      TypeHandler handler=typeSerializationLibrary.getTypeHandlerFromClass(Vector3f.class);
      GsonPersistedData data=(GsonPersistedData)handler.serialize(e.getHitNormal(),serializationContext);
      writer.name("String_Node_Str");
      writer.beginObject();
      JsonArray array=data.getElement().getAsJsonArray();
      writer.name("String_Node_Str").value(array.get(0).getAsFloat());
      writer.name("String_Node_Str").value(array.get(1).getAsFloat());
      writer.name("String_Node_Str").value(array.get(2).getAsFloat());
      writer.endObject();
      data=(GsonPersistedData)handler.serialize(e.getHitPosition(),serializationContext);
      writer.name("String_Node_Str");
      writer.beginObject();
      array=data.getElement().getAsJsonArray();
      writer.name("String_Node_Str").value(array.get(0).getAsFloat());
      writer.name("String_Node_Str").value(array.get(1).getAsFloat());
      writer.name("String_Node_Str").value(array.get(2).getAsFloat());
      writer.endObject();
      handler=typeSerializationLibrary.getTypeHandlerFromClass(Vector3i.class);
      data=(GsonPersistedData)handler.serialize(e.getTargetBlockPosition(),serializationContext);
      writer.name("String_Node_Str");
      writer.beginObject();
      array=data.getElement().getAsJsonArray();
      writer.name("String_Node_Str").value(array.get(0).getAsInt());
      writer.name("String_Node_Str").value(array.get(1).getAsInt());
      writer.name("String_Node_Str").value(array.get(2).getAsInt());
      writer.endObject();
      writeInputEventInstanceData(writer,event,serializationContext);
    }
 else     if (event instanceof CameraTargetChangedEvent) {
      CameraTargetChangedEvent e=(CameraTargetChangedEvent)event;
      writer.name("String_Node_Str").value(e.getOldTarget().getId());
      writer.name("String_Node_Str").value(e.getNewTarget().getId());
    }
 else     if (event instanceof PlaySoundEvent) {
      PlaySoundEvent e=(PlaySoundEvent)event;
      writer.name("String_Node_Str").value(e.getVolume());
      TypeHandler handler=typeSerializationLibrary.getTypeHandlerFromClass(StaticSound.class);
      PersistedData data=handler.serialize(e.getSound(),serializationContext);
      writer.name("String_Node_Str").value(data.getAsString());
    }
 else     if (event instanceof CharacterMoveInputEvent) {
      CharacterMoveInputEvent e=(CharacterMoveInputEvent)event;
      writer.name("String_Node_Str").value(e.getDeltaMs());
      writer.name("String_Node_Str").value(e.getPitch());
      writer.name("String_Node_Str").value(e.getYaw());
      writer.name("String_Node_Str").value(e.isRunning());
      writer.name("String_Node_Str").value(e.isCrouching());
      writer.name("String_Node_Str").value(e.isJumpRequested());
      writer.name("String_Node_Str").value(e.getSequenceNumber());
      writer.name("String_Node_Str").value(e.isFirstRun());
      TypeHandler handler=typeSerializationLibrary.getTypeHandlerFromClass(Vector3f.class);
      GsonPersistedData data=(GsonPersistedData)handler.serialize(e.getMovementDirection(),serializationContext);
      writer.name("String_Node_Str");
      writer.beginObject();
      JsonArray array=data.getElement().getAsJsonArray();
      writer.name("String_Node_Str").value(array.get(0).getAsFloat());
      writer.name("String_Node_Str").value(array.get(1).getAsFloat());
      writer.name("String_Node_Str").value(array.get(2).getAsFloat());
      writer.endObject();
    }
 else {
      logger.error("String_Node_Str");
    }
  }
 catch (  Exception e) {
    logger.error("String_Node_Str" + event.toString(),e);
  }
}

Fixed version (ground truth):
private void writeSpecificEventData(JsonWriter writer,Event event){
  try {
    GsonSerializationContext serializationContext=new GsonSerializationContext(null);
    if (event instanceof InputEvent) {
      InputEvent e=(InputEvent)event;
      writer.name("String_Node_Str").value(e.getDelta());
      writer.name("String_Node_Str").value(e.isConsumed());
      writer.name("String_Node_Str").value(e.getTarget().getId());
      writeVector3fData(writer,serializationContext,e);
      writeInputEventInstanceData(writer,event,serializationContext);
    }
 else     if (event instanceof CameraTargetChangedEvent) {
      CameraTargetChangedEvent e=(CameraTargetChangedEvent)event;
      writer.name("String_Node_Str").value(e.getOldTarget().getId());
      writer.name("String_Node_Str").value(e.getNewTarget().getId());
    }
 else     if (event instanceof PlaySoundEvent) {
      PlaySoundEvent e=(PlaySoundEvent)event;
      writer.name("String_Node_Str").value(e.getVolume());
      TypeHandler handler=typeSerializationLibrary.getTypeHandlerFromClass(StaticSound.class);
      PersistedData data=handler.serialize(e.getSound(),serializationContext);
      writer.name("String_Node_Str").value(data.getAsString());
    }
 else     if (event instanceof CharacterMoveInputEvent) {
      CharacterMoveInputEvent e=(CharacterMoveInputEvent)event;
      writer.name("String_Node_Str").value(e.getDeltaMs());
      writer.name("String_Node_Str").value(e.getPitch());
      writer.name("String_Node_Str").value(e.getYaw());
      writer.name("String_Node_Str").value(e.isRunning());
      writer.name("String_Node_Str").value(e.isCrouching());
      writer.name("String_Node_Str").value(e.isJumpRequested());
      writer.name("String_Node_Str").value(e.getSequenceNumber());
      writer.name("String_Node_Str").value(e.isFirstRun());
      TypeHandler handler=typeSerializationLibrary.getTypeHandlerFromClass(Vector3f.class);
      GsonPersistedData data=(GsonPersistedData)handler.serialize(e.getMovementDirection(),serializationContext);
      writer.name("String_Node_Str");
      writer.beginObject();
      JsonArray array=data.getElement().getAsJsonArray();
      writer.name("String_Node_Str").value(array.get(0).getAsFloat());
      writer.name("String_Node_Str").value(array.get(1).getAsFloat());
      writer.name("String_Node_Str").value(array.get(2).getAsFloat());
      writer.endObject();
    }
 else {
      logger.error("String_Node_Str");
    }
  }
 catch (  Exception e) {
    logger.error("String_Node_Str" + event.toString(),e);
  }
}