Bug 53299 Synchronizing 5 projects is locking too much
Build 20040219 While synchronizing 5 projects, I started editing one file in project no.1, while no.3 was being synchronized (1 was long done). I still got locked on validate edit, though the project 1 should have been released from the sync rsc lock. (I did check that no other competing job was getting in the way)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/filebuffers/CompilationUnitDocumentProvider2.java
Position position= createPositionFromProblem(problem);
							if (position != null) {
								
								try {
									ProblemAnnotation annotation= new ProblemAnnotation(problem, fCompilationUnit);
									overlayMarkers(position, annotation);								
									addAnnotation(annotation, position, false);
									fGeneratedAnnotations.add(annotation);
								
									temporaryProblemsChanged= true;
								} catch (BadLocationException x) {
									
								}
							}
						}
						
						fCollectedProblems.clear();
					}
					
					removeMarkerOverlays(isCanceled);
					fPreviouslyOverlaid.clear();
					fPreviouslyOverlaid= null;
				}
					
				if (temporaryProblemsChanged)
					fireModelChanged();
			}
			
			private void removeMarkerOverlays(boolean isCanceled) {
				if (isCanceled) {