AssertionFailedException TextFileChange.releaseDocument

[jukzi]

I tried a Source/cleanup (organize imports on all jdt projects) and had to canceled it when it stuck for some minutes.
Error logged:

org.eclipse.core.runtime.AssertionFailedException: assertion failed: 
	at org.eclipse.core.runtime.Assert.isTrue(Assert.java:119)
	at org.eclipse.core.runtime.Assert.isTrue(Assert.java:104)
	at org.eclipse.ltk.core.refactoring.TextFileChange.releaseDocument(TextFileChange.java:248)
	at org.eclipse.jdt.core.refactoring.CompilationUnitChange.releaseDocument(CompilationUnitChange.java:92)
	at org.eclipse.ltk.core.refactoring.TextChange.perform(TextChange.java:249)
	at org.eclipse.jdt.internal.corext.fix.CleanUpRefactoring$CleanUpChange.access$0(CleanUpRefactoring.java:1)
	at org.eclipse.jdt.internal.corext.fix.CleanUpRefactoring$CleanUpChange.lambda$0(CleanUpRefactoring.java:153)
	at org.eclipse.ui.internal.PendingSyncExec.run(PendingSyncExec.java:68)
	at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:166)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4099)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3715)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:168)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:370)
	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1036)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.internalPerformFinish(RefactoringWizard.java:636)
	at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.performFinish(UserInputWizardPage.java:148)
	at org.eclipse.jdt.internal.ui.fix.CleanUpRefactoringWizard$CleanUpConfigurationPage.performFinish(CleanUpRefactoringWizard.java:429)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.performFinish(RefactoringWizard.java:710)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:837)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog.finishPressed(RefactoringWizardDialog.java:109)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:474)
	at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:619)
	at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:265)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4326)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1174)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4124)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3712)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:823)
	at org.eclipse.jface.window.Window.open(Window.java:799)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.lambda$0(RefactoringWizardOpenOperation.java:190)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:209)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:126)
	at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:41)
	at org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter.startCleanupRefactoring(RefactoringExecutionStarter.java:263)
	at org.eclipse.jdt.internal.ui.actions.AllCleanUpsAction.performRefactoring(AllCleanUpsAction.java:71)
	at org.eclipse.jdt.internal.ui.actions.CleanUpAction.runOnMultiple(CleanUpAction.java:215)
	at org.eclipse.jdt.internal.ui.actions.CleanUpAction.run(CleanUpAction.java:119)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:252)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
	at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:225)
	at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:223)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:581)
	at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:415)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4326)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1174)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4124)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3712)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:668)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:605)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1481)