затмение: «не удалось создать контролирует Пярта» ошибку, StringIndexOutOfBoundsException

Question

Я пытаюсь загрузить файл в затмении, и я получаю следующее сообщение об ошибке:

Я загрузил этот файл раньше без проблем. У меня также есть несколько версий, контролируемых версиями этого файла, в разных проектах, и все они получают ту же ошибку. Я не встречал никаких других файлов, которые вызывают ошибку. Я могу загрузить этот файл в любом другом текстовом редакторе.

Я никогда раньше этого не видел. Я разобрался в этой проблеме, и я увидел кучу обсуждений совершенно несвязанных вопросов, что заставляет меня думать, что это всего лишь общая ошибка, и я не знаю, как ее отладить. Вот полный трассировки стека:

java.lang.StringIndexOutOfBoundsException: String index out of range: 63 
    at java.lang.String.charAt(Unknown Source) 
    at com.cb.eclipse.folding.java.calculation.UserDefinedRegionHelper.isSentinel(UserDefinedRegionHelper.java:53) 
    at com.cb.eclipse.folding.java.calculation.UserDefinedRegionHelper.isOpeningSentinel(UserDefinedRegionHelper.java:29) 
    at com.cb.eclipse.folding.java.calculation.CommentHelper.isUserDefinedSentinel(CommentHelper.java:90) 
    at com.cb.eclipse.folding.java.calculation.CommentHelper.handle(CommentHelper.java:67) 
    at com.cb.eclipse.folding.java.calculation.AbstractBlockStrategy.handle(AbstractBlockStrategy.java:93) 
    at com.cb.eclipse.folding.java.calculation.CompositeCalculationStrategy.handle(CompositeCalculationStrategy.java:24) 
    at com.cb.eclipse.folding.java.calculation.CommentPrefixStrategy.handle(CommentPrefixStrategy.java:64) 
    at com.cb.eclipse.folding.java.calculation.JavaProjectionCalculator.computeProjections(JavaProjectionCalculator.java:230) 
    at com.cb.eclipse.folding.java.calculation.JavaProjectionCalculator.findAnnotations(JavaProjectionCalculator.java:96) 
    at com.cb.eclipse.folding.java.calculation.JavaProjectionCalculator.findAnnotations(JavaProjectionCalculator.java:108) 
    at com.cb.eclipse.folding.java.calculation.JavaProjectionCalculator.findAnnotations(JavaProjectionCalculator.java:108) 
    at com.cb.eclipse.folding.java.calculation.JavaProjectionCalculator.findAnnotations(JavaProjectionCalculator.java:68) 
    at com.cb.eclipse.folding.java.calculation.ProjectionChangeReconciler.reconstructAnnotations(ProjectionChangeReconciler.java:173) 
    at com.cb.eclipse.folding.java.calculation.ProjectionChangeReconciler.initialize(ProjectionChangeReconciler.java:99) 
    at com.cb.eclipse.folding.java.EnhancedJavaFoldingStructureProvider.initialize(EnhancedJavaFoldingStructureProvider.java:115) 
    at com.cb.eclipse.folding.java.EnhancedJavaFoldingStructureProvider$ProjectionListener.projectionEnabled(EnhancedJavaFoldingStructureProvider.java:201) 
    at org.eclipse.jface.text.source.projection.ProjectionViewer.fireProjectionEnabled(ProjectionViewer.java:488) 
    at org.eclipse.jface.text.source.projection.ProjectionViewer.enableProjection(ProjectionViewer.java:536) 
    at org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer.setVisibleDocument(JavaSourceViewer.java:681) 
    at org.eclipse.jface.text.TextViewer.setDocument(TextViewer.java:2934) 
    at org.eclipse.jface.text.source.SourceViewer.setDocument(SourceViewer.java:643) 
    at org.eclipse.jface.text.source.projection.ProjectionViewer.setDocument(ProjectionViewer.java:375) 
    at org.eclipse.jface.text.source.SourceViewer.setDocument(SourceViewer.java:591) 
    at org.eclipse.ui.texteditor.AbstractTextEditor.initializeSourceViewer(AbstractTextEditor.java:4050) 
    at org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl(AbstractTextEditor.java:3578) 
    at org.eclipse.ui.texteditor.StatusTextEditor.createPartControl(StatusTextEditor.java:54) 
    at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createPartControl(AbstractDecoratedTextEditor.java:447) 
    at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createPartControl(JavaEditor.java:3125) 
    at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createPartControl(CompilationUnitEditor.java:1502) 
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:151) 
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:99) 
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:341) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:898) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:879) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:121) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:345) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:264) 
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162) 
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:104) 
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:73) 
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:55) 
    at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:129) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:971) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:640) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:746) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:717) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:711) 
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:695) 
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:99) 
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40) 
    at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186) 
    at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145) 
    at org.eclipse.swt.widgets.Display.syncExec(Display.java:4761) 
    at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211) 
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36) 
    at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197) 
    at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197) 
    at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) 
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) 
    at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) 
    at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) 
    at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) 
    at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) 
    at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:85) 
    at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:59) 
    at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) 
    at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171) 
    at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:494) 
    at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:458) 
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:724) 
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:396) 
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1166) 
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3234) 
    at org.eclipse.ui.internal.WorkbenchPage.access$25(WorkbenchPage.java:3149) 
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:3131) 
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) 
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3126) 
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3090) 
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3080) 
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:373) 
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:179) 
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:268) 
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:233) 
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275) 
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) 
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:376) 
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:538) 
    at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48) 
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:854) 
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) 
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50) 
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173) 
    at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:851) 
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1168) 
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1275) 
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:278) 
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:272) 
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:313) 
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) 
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362) 
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113) 
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180) 
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) 
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) 
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) 
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) 
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) 
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) 
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) 
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) 
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) 
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) 
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) 
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) 
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) 
    at org.eclipse.equinox.launcher.Main.run(Main.java:1515) 

Answer 1

Код для UserDefinedRegionHelper.isSentinel есть: https://github.com/al3xandru/coffee-bytes/blob/master/com.cb.eclipse.folding/src/com/cb/eclipse/folding/java/calculation/UserDefinedRegionHelper.java

И еще особенно:

ISourceReference reference = (ISourceReference) owner; 

     String contents = reference.getSource(); 
     ISourceRange range = (ISourceRange)reference.getSourceRange(); 


     int correctedStart = start - range.getOffset(); 
     // Math.min should be redundant (no JavaElement should contain half of a comment) 
     int correctedEnd = Math.min((end - range.getOffset()) , range.getLength()); 

     //System.out.println("Checking for sentinel: " + contents.substring(correctedStart, correctedEnd)); 
     boolean keepScanning = true; 
     int shift = correctedStart+2; // +2 refers to the // characters which we know we can remove 

     while(keepScanning && shift <= correctedEnd) { 
      char nextChar = contents.charAt(shift); 

      if(nextChar != ' ' && nextChar != '\t') { 
       keepScanning = false;    
      } 
      else { 
       shift++; 
      } 

     } 

Исключение происходит в

char nextChar = contents.charAt(shift); 

Этот код обрабатывает строки комментариев. Поэтому я предполагаю, что в этом конкретном файле вы написали комментарий со специальным символом в конце ... Но без вашего исходного кода это сложно сказать!

Answer 2

Следуя приведенному выше, я попытался удалить все комментарии в своем коде, однако это не было моей проблемой. Я действительно нашел, что вопрос был

private static final NavigableMap<Long, String> suffixes = new TreeMap<>(); 
static { 
     suffixes.put(1_000L, "k"); 
     suffixes.put(1_000_000L, "M"); 
     suffixes.put(1_000_000_000L, "B"); 
     suffixes.put(1_000_000_000_000L, "T"); 
     suffixes.put(1_000_000_000_000_000L, "P"); 
     suffixes.put(1_000_000_000_000_000_000L, "E"); 
     } 

Который фактически компилируется и работает просто не уверен, почему. =/

Надеется, что это помогает