Bug 46753 [misc] Typing should not be blocked by background activity
Build 20031111 1. Open an editor 2. Start a CVS background activity (e.g. Synchronize several projects) 3. Start typing in the editor Observe: The whole UI freezes and what you typed is not shown in the editor until the end of the backgroung activity
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/filebuffers/CompilationUnitDocumentProvider2.java
private ICompilationUnit fCompilationUnit;
			private List fCollectedProblems;
			private List fGeneratedAnnotations;
			private IProgressMonitor fProgressMonitor;
			private boolean fIsActive= false;
			
			private ReverseMap fReverseMap= new ReverseMap();
			private List fPreviouslyOverlaid= null; 
			private List fCurrentlyOverlaid= new ArrayList();
			private boolean fIncludesProblemAnnotationChanges= false;
			public CompilationUnitAnnotationModel(IResource resource) {
				super(resource);
			}
			
			public void setCompilationUnit(ICompilationUnit unit)  {
				fCompilationUnit= unit;
			}
			
			protected MarkerAnnotation createMarkerAnnotation(IMarker marker) {
				String markerType= MarkerUtilities.getMarkerType(marker);