Bug 232851 Performance regression: OpenCloseViewTest#showView:ResourceNavigator
3.4 HEAD: Elapsed : 624ms (95% in [621ms, 628ms]) Measurable effect: 6ms (0.4 SDs) CPU Time: 576ms (95% in [564ms, 589ms]) Measurable effect: 25ms (0.4 SDs)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
}
        public void partOpened(IWorkbenchPart part) {
        }
    };
    private IPropertyChangeListener propertyChangeListener = new IPropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent event) {
            String property = event.getProperty();
            Object newValue = event.getNewValue();
            Object oldValue = event.getOldValue();
           
            if (IWorkingSetManager.CHANGE_WORKING_SET_REMOVE.equals(property)
                    && oldValue == workingSet) {
                setWorkingSet(null);
            } else if (IWorkingSetManager.CHANGE_WORKING_SET_NAME_CHANGE
                    .equals(property)
                    && newValue == workingSet) {
                updateTitle();
            } else if (IWorkingSetManager.CHANGE_WORKING_SET_CONTENT_CHANGE
                    .equals(property)
                    && newValue == workingSet) {
				if (workingSet.isAggregateWorkingSet() && workingSet.isEmpty()) {
					
					if (!emptyWorkingSet) {
						emptyWorkingSet = true;
						workingSetFilter.setWorkingSet(null);
					}
				} else {
					
					
					if (emptyWorkingSet) {