Bug 67187 [implementation] Concurrent modification of CompilationUnitDocumentProvider's ReverseMap
Was just scrolling through a Java file and got a popup with the following info: Java AST creation (Error: An internal error occurred during: "Java AST creation".) An internal error occurred during: "Java AST creation". java.lang.IndexOutOfBoundsException: Index: 62, Size: 60 java.util.ArrayList.RangeCheck(ArrayList.java:507) java.util.ArrayList.get(ArrayList.java:324) org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$ReverseM ap.get(CompilationUnitDocumentProvider.java:325) org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$Compilat ionUnitAnnotationModel.addAnnotation(CompilationUnitDocumentProvider.java:665) org.eclipse.jface.text.source.AnnotationModel.addAnnotation (AnnotationModel.java:163) org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.calcula teLightBulb(QuickAssistLightBulbUpdater.java:233) org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.doSelec tionChanged(QuickAssistLightBulbUpdater.java:221) org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.access$ 0(QuickAssistLightBulbUpdater.java:204) org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater$1.selec tionChanged(QuickAssistLightBulbUpdater.java:128) org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartLis tenerGroup.calculateASTandInform(SelectionListenerWithASTManager.java:164) org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run (SelectionListenerWithASTManager.java:136) org.eclipse.core.internal.jobs.Worker.run(Worker.java:66) Wasn't doing anything remarkable at the time - certainly nothing that I would expect would induce this...
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
boolean isCanceled= false;
					fPreviouslyOverlaid= fCurrentlyOverlaid;
					fCurrentlyOverlaid= new ArrayList();
					if (fGeneratedAnnotations.size() > 0) {
						temporaryProblemsChanged= true;	
						removeAnnotations(fGeneratedAnnotations, false, true);
						fGeneratedAnnotations.clear();
					}
					
					if (reportedProblems != null && reportedProblems.size() > 0) {
												
						Iterator e= reportedProblems.iterator();
						while (e.hasNext()) {
							
							if (fProgressMonitor != null && fProgressMonitor.isCanceled()) {
								isCanceled= true;
								break;
							}
								
							IProblem problem= (IProblem) e.next();
							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;