Bug 64897 packages view: not updated when project source folders change [browsing]
RC1 - browsing perspective - smoke test scenario... - import junit.zip into the previously not existing folder 'src' -> packages view shows a number of packages src.junit.framework... with errors - go to the project properties, source page - add 'src' as source folder, accept when asked to remove the project root as source folder - press OK -> the error marks in the packages view are removed -> the packages src... are still visible in the packages view -> they are only removed upon a selection change in the "projects" view
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/PackagesViewFlatContentProvider.java
if(lp != null){
			lp.remove(frag);
			 
			if(lp.getFragments().length == 1){
				IPackageFragment fragment= lp.getFragments()[0];
				fMapToLogicalPackage.remove(key);
				fMapToPackageFragments.put(key,fragment);		
				
				postRemove(lp);
				postAdd(fragment);
			} return;
		} else {
			fMapToPackageFragments.remove(key);	
			postRemove(frag);	
		}
	}
	
	private void postRefresh(final Object element) {
		postRunnable(new Runnable() {
			public void run() {
				Control ctrl= fViewer.getControl();
				if (ctrl != null && !ctrl.isDisposed()) {
					fViewer.refresh(element);
				}
			}
		});
	}
	
	private void addElement(IPackageFragment frag) {