Bug 34335 DND doesn't work
RC2 Linux-GTK Drag and drop doesn't work. I've tried it in the DNDExample and in the package explorer and drags are never initiated.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/JavaBrowsingPart.java
public void dispose() {
		if (fViewer != null) {
			getViewSite().getPage().removePostSelectionListener(this);
			getViewSite().getPage().removePartListener(fPartListener);
			fViewer= null;
		}
		if (fActionGroups != null)
			fActionGroups.dispose();
		super.dispose();
	}
	
	/**
	 * Adds the KeyListener
	 */
	protected void addKeyListener() {
		fViewer.getControl().addKeyListener(new KeyAdapter() {
			public void keyReleased(KeyEvent event) {
				handleKeyReleased(event);
			}
		});
	}
	protected void handleKeyReleased(KeyEvent event) {
		if (event.stateMask != 0) 
			return;		
		
		int key= event.keyCode;
		IAction action;
		if (key == SWT.F5) {
			action= fBuildActionGroup.getRefreshAction();