Bug 123424 browsing perspective does not show some packages in hierarchical mode
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/PackagesView.java
private int fState;
		public LayoutAction(String text, int state) {
			super(text, IAction.AS_RADIO_BUTTON);
			fState= state;
			if (state == PackagesView.LIST_VIEW_STATE)
				PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.LAYOUT_FLAT_ACTION);
			else
				PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.LAYOUT_HIERARCHICAL_ACTION);
		}
		public int getState() {
			return fState;
		}
		public void setRunnable(Runnable runnable) {
			Assert.isNotNull(runnable);
		}
		/*
		 * @see org.eclipse.jface.action.IAction#run()
		 */
		public void run() {