fProjectViewState= (newInput instanceof IJavaProject);
fInputIsProject= (newInput instanceof IJavaProject);
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {		if (newInput != null) {			JavaCore.addElementChangedListener(this);		} else {			JavaCore.removeElementChangedListener(this);		}		fProjectViewState= (newInput instanceof IJavaProject);				if(viewer instanceof StructuredViewer)			fViewer= (StructuredViewer)viewer;	}