Bug 47922 Double-click does not go into resource folders [package explorer]
build I20031121 - In a self-hosting workspace with UI in source, - On the Java pref page, change the double-click behavior for the package explorer to Go Into. - In the Package Explorer, double-click on org.eclipse.ui. - It goes into the project. - Double-click on the schema folder. - It has no effect. It should go into it. - Choose Go Into from the context menu. - It goes into it OK
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerActionGroup.java
void handleOpen(OpenEvent event) {
		IAction openAction= fNavigateActionGroup.getOpenAction();
		if (openAction != null && openAction.isEnabled()) {
			openAction.run();
			return;
		}
	}
	
	 void handleKeyEvent(KeyEvent event) {
		if (event.stateMask != 0) 
			return;		
		
		if (event.keyCode == SWT.F5) {
			IAction refreshAction= fBuildActionGroup.getRefreshAction();
			if (refreshAction != null && refreshAction.isEnabled())
				refreshAction.run();
		} else if (event.character == SWT.DEL) {
			IAction delete= fCCPActionGroup.getDeleteAction();
			if (delete != null && delete.isEnabled())
				delete.run();
		}
		else if (event.keyCode == SWT.BS) {
			if (fUpAction != null && fUpAction.isEnabled()) 
				fUpAction.run();
		}
	}
	
	
	private void doWorkingSetChanged(PropertyChangeEvent event) {
		IWorkingSet workingSet= (IWorkingSet) event.getNewValue();