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
if (cuInfo.fModel != null)
				cuInfo.fModel.removeAnnotationModelListener(fGlobalAnnotationModelListener);
		}
		super.disposeFileInfo(element, info);
	}
	
	protected void commitWorkingCopy(IProgressMonitor monitor, Object element, CompilationUnitInfo info, boolean overwrite) throws CoreException {
		
		synchronized (info.fCopy) {
			info.fCopy.reconcile();
		}
		
		IDocument document= info.fTextFileBuffer.getDocument();
		ICompilationUnit original= (ICompilationUnit) info.fCopy.getOriginalElement();
		IResource resource= original.getResource();
		
		Assert.isTrue(resource instanceof IFile);
		if (!resource.exists()) {
			
			createFileFromDocument(monitor, (IFile) resource, document);
			return;
		}
		
		if (fSavePolicy != null)
			fSavePolicy.preSave(info.fCopy);
		
		try {
			
			fIsAboutToSave= true;