DialogWrapperPeerImpl.java 文件源码

@Override
public void dispose() {
  if (isShowing()) {
    hide();
  }

  if (myWindowListener != null) {
    myWindowListener.saveSize();
    removeWindowListener(myWindowListener);
    myWindowListener = null;
  }

  DialogWrapper.cleanupWindowListeners(this);

  final BufferStrategy strategy = getBufferStrategy();
  if (strategy != null) {
    strategy.dispose();
  }
  super.dispose();

  removeAll();
  DialogWrapper.cleanupRootPane(rootPane);
  rootPane = null;

}