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
protected void fireModelChanged(AnnotationModelEvent event) {
				if (event instanceof CompilationUnitAnnotationModelEvent) {
					CompilationUnitAnnotationModelEvent e= (CompilationUnitAnnotationModelEvent) event;
					fIncludesProblemAnnotationChanges= e.includesProblemMarkerAnnotationChanges();
				}
				super.fireModelChanged(event);
			}
			
			/*
			 * @see IProblemRequestor#isActive()
			 */
			public boolean isActive() {
				return fIsActive && (fCollectedProblems != null);
			}
			
			/*
			 * @see IProblemRequestorExtension#setProgressMonitor(IProgressMonitor)
			 */
			public void setProgressMonitor(IProgressMonitor monitor) {
				fProgressMonitor= monitor;
			}
			
			/*
			 * @see IProblemRequestorExtension#setIsActive(boolean)
			 */
			public void setIsActive(boolean isActive) {
				if (fIsActive != isActive) {
					fIsActive= isActive;
					if (fIsActive)
						startCollectingProblems();