Is it safe to dispose a JFrame from a different thread in Java?

Question

Is it safe to call the dispose() method of a JFrame from a different thread (not the EDT)?

Answer 1

No. It may work or it may cause problems. Just wrap the method in a SwingUtilities.invokeLater(...) and don't worry about it.

Answer 2

No, Swing is not thread safe. Use something like

Runnable doWorkRunnable = new Runnable() {
    public void run() { myFrame.dispose(); }
};
SwingUtilities.invokeLater(doWorkRunnable);