Bug 5820 Close all editors brings up hierarchy of object
Build: 1107 1. Open a Java editor in the Java perspective 2. Select the project 3. Hit Ctrl-Shift-F4 The hierarchy for Object appears after ~30 seconds. This is very confusing.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
source.addDragListener(new DelegatingDragAdapter(dragListeners));
	}
	/**
 	 * Handles key events in viewer.
 	 */
	void handleKeyPressed(KeyEvent event) {
		if (event.character == SWT.DEL && event.stateMask == 0){
			fDeleteAction.update();
			if (fDeleteAction.isEnabled())
				fDeleteAction.run();
		}	
	}
	
	/**
	 * Handles double clicks in viewer.
	 * Opens editor if file double-clicked.
	 */
	private void handleDoubleClick(DoubleClickEvent event) {
		IStructuredSelection s= (IStructuredSelection) event.getSelection();
		Object element= s.getFirstElement();
		
		if (fOpenCUAction.isEnabled()) {
			fOpenCUAction.run();
			return;
		}
		
		if (fViewer.isExpandable(element)) {
			if (JavaBasePreferencePage.doubleClockGoesInto()) {