Disposing is causing Fatal Signal 11

Question

In my libgdx game, I have multiple screens. I am a little unsure how to properly use the dipose() method.

In each screen there are certain variables I create then dispose in the dispose() method. I read online that if I do not dispose, it causes memory leaks and crashes the program.

But, for some reason, whenever I dispose anything in my MenuScreen, it causes a crash in the app (Fatal signal 11). (The error also occurs at other random times when switching different screens). I don't know if this has anything to do with me naming my files the same names in each class.

For example, in the create() function of each class I do this:

batch = new SpriteBatch();
shapeRenderer = new ShapeRenderer();

Then in the dispose() function of each class I do this:

batch.dispose();
shapeRenderer.dispose();

Does keeping the same variable name in each class affect my code? Aside from this I dispose every image, sound and font manually.

Even when I do not dispose anything in my MenuScreen class, the Fatal Signal 11 error occurs every now and then when switching screens.

Sorry for being vague but I am unsure what is causing this error. There is also an approximate 1 second delay when switching screens.

Note:

When switching screens, I do:

game.setScreen(new ScreenName(game));

while game is just an instance of my MainClass:

final MainClass game;

Answer 1

Since you are passing the instance of your main class, why do you make a new batch in each class? Just use the main class's batch