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Java: Fix memory leak

I have a memory leak in my java game application, that I was somehow expecting. The leak comes from a new instance being created multiple times on this button action listener, because each time I press the button it creates a new instance of RegularMode:

btnRegular.addActionListener(new ActionListener() {
 @Override
 public void actionPerformed(ActionEvent e) {
 frame.remove(pane);
 gm = Gamemode.REGULAR;
 mode = new RegularMode(frame, WIDTH, HEIGHT);
 }
});

Funny thing is, I have been trying to fix the memory leak, using this code:

public static void initDisplay() {
 gm = Gamemode.NONE;
 mode.setRunning(false);
 frame.remove(mode.getPane());
 frame.add(pane);
 frame.validate();
 frame.repaint();
 mode = null; // THIS LINE
 frame.pack();
}

– but it doesn't work. Are there any other ways to solve this type of memory leak?

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Yes, this is true. It also merely requests that the JVM garbage collect, and doesn't force it to.

Peter Berg
– Peter Berg

2013年11月02日 22:18:10 +00:00
Commented Nov 2, 2013 at 22:18
It's generally best to not expect System.gc() to do anything at all predictable. It's mostly there for people who feel they must somehow control GC, even when they don't have the foggiest notion what they're doing.

Hot Licks
– Hot Licks

2013年11月02日 23:12:57 +00:00
Commented Nov 2, 2013 at 23:12

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Java: Fix memory leak

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