java.lang.ClassCastException: java.lang.String cannot be cast to org.eclipse.jdt.internal.core.JavaElement
at org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypesRemoving(JavaModelManager.java:4405)
at org.eclipse.jdt.internal.core.JavaModelManager.secondaryTypesRemoving(JavaModelManager.java:4336)
at org.eclipse.jdt.internal.core.DeltaProcessor.updateIndex(DeltaProcessor.java:2603)
at org.eclipse.jdt.internal.core.DeltaProcessor.updateCurrentDeltaAndIndex(DeltaProcessor.java:2406)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2089)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.traverseDelta(DeltaProcessor.java:2139)
at org.eclipse.jdt.internal.core.DeltaProcessor.processResourceDelta(DeltaProcessor.java:1781)
at org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged(DeltaProcessor.java:1943)
at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:470)
at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:291)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:313)
at org.eclipse.core.internal.resources.Workspace.checkpoint(Workspace.java:367)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:265)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:308)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:225)
at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4694)
at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2579)
at org.eclipse.jdt.internal.ui.refactoring.RefactoringExecutionHelper.perform(RefactoringExecutionHelper.java:193)
at org.eclipse.jdt.internal.ui.refactoring.RefactoringExecutionHelper.perform(RefactoringExecutionHelper.java:151)
at org.eclipse.jdt.ui.refactoring.RenameSupport.perform(RenameSupport.java:198)
at org.eclipse.jdt.internal.ui.refactoring.reorg.RenameLinkedMode.doRename(RenameLinkedMode.java:361)
at org.eclipse.jdt.internal.ui.refactoring.reorg.RenameLinkedMode$EditorSynchronizer.left(RenameLinkedMode.java:119)
at org.eclipse.jface.text.link.LinkedModeModel.exit(LinkedModeModel.java:341)
at org.eclipse.jface.text.link.LinkedModeUI$4.run(LinkedModeUI.java:1199)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)