Bug 68586 [implementation] Reconciling should be more robust
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
/*
			 * @see IProblemRequestorExtension#setProgressMonitor(IProgressMonitor)
			 */
			public void setProgressMonitor(IProgressMonitor monitor) {
				fProgressMonitor= monitor;
			}
			
			/*
			 * @see IProblemRequestorExtension#setIsActive(boolean)
			 */
			public void setIsActive(boolean isActive) {
				fIsActive= isActive;
			}
			
			/*
			 * @see IProblemRequestorExtension#setIsHandlingTemporaryProblems(boolean)
			 * @since 3.1
			 */
			public void setIsHandlingTemporaryProblems(boolean enable) {
				if (fIsHandlingTemporaryProblems != enable) {
					fIsHandlingTemporaryProblems= enable;
					if (fIsHandlingTemporaryProblems)
						startCollectingProblems();
					else
						stopCollectingProblems();
				}
				
			}
			
			private Object getAnnotations(Position position) {