Bug 53311 [KeyBindings] F5 doesn't work
Version: 3.0.0 Build id: 200312182000
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerActionGroup.java
addOpenNewWindowAction(menu, element);
		
		super.fillContextMenu(menu);
	}
	
	 private void addGotoMenu(IMenuManager menu, Object element, int size) {
		boolean enabled= size == 1 && fPart.getViewer().isExpandable(element) && (isGoIntoTarget(element) || element instanceof IContainer);
		fZoomInAction.setEnabled(enabled);
		if (enabled)
			menu.appendToGroup(IContextMenuConstants.GROUP_GOTO, fZoomInAction);
	}
	
	private boolean isGoIntoTarget(Object element) {
		if (element == null)
			return false;
		if (element instanceof IJavaElement) {
			int type= ((IJavaElement)element).getElementType();
			return type == IJavaElement.JAVA_PROJECT || 
				type == IJavaElement.PACKAGE_FRAGMENT_ROOT || 
				type == IJavaElement.PACKAGE_FRAGMENT;
		}
		return false;
	}
	private void addOpenNewWindowAction(IMenuManager menu, Object element) {
		if (element instanceof IJavaElement) {
			element= ((IJavaElement)element).getResource();
			
		}
		if (!(element instanceof IContainer))
			return;