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Bug 411210

Summary:	Attempt to refactor Javascript using "Extract Function" fails - exception created in the log.
Product:	[WebTools] JSDT	Reporter:	Nicholas Waltham <nw221>
Component:	General	Assignee:	Project Inbox <jsdt.javascript-inbox>
Status:	CLOSED DUPLICATE	QA Contact:	Chris Jaun <cmjaun>
Severity:	normal
Priority:	P3	CC:	nw221, thatnitind
Version:	3.4
Target Milestone:	---
Hardware:	PC
OS:	Linux
Whiteboard:

Description Nicholas Waltham

2013-06-20 04:12:50 EDT

An attempt to use "Refactor-->Extract Function" fails with "An unexpected exception occured while creating change object" when preview is clicked. This problem occurs in Juno(released version) and Kepler (RC4). Below a stack trace:
!SESSION 2013-06-20 07:55:32.969 -----------------------------------------------
eclipse.buildId=4.3.0.I20130605-2000
java.version=1.7.0_03
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments:  -os linux -ws gtk -arch x86_64

!ENTRY org.eclipse.ltk.ui.refactoring 4 10000 2013-06-20 07:57:09.125
!MESSAGE Internal Error
!STACK 0
java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.run(RefactoringWizardDialog2.java:331)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.createChange(RefactoringWizard.java:663)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.computeUserInputSuccessorPage(RefactoringWizard.java:502)
	at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.computeSuccessorPage(UserInputWizardPage.java:74)
	at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.getNextPage(UserInputWizardPage.java:114)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.nextOrPreviewPressed(RefactoringWizardDialog2.java:497)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.access$2(RefactoringWizardDialog2.java:494)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2$1.widgetSelected(RefactoringWizardDialog2.java:693)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)
	at org.eclipse.jface.window.Window.open(Window.java:802)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:187)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:202)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:122)
	at org.eclipse.wst.jsdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:45)
	at org.eclipse.wst.jsdt.ui.actions.ExtractMethodAction.run(ExtractMethodAction.java:83)
	at org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:249)
	at org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:221)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:499)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: java.lang.NullPointerException
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteFlattener.visit(ASTRewriteFlattener.java:502)
	at org.eclipse.wst.jsdt.core.dom.ExpressionStatement.accept0(ExpressionStatement.java:144)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteFormatter.getFormattedResult(ASTRewriteFormatter.java:176)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doTextInsert(ASTRewriteAnalyzer.java:1111)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:632)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.rewriteParagraphList(ASTRewriteAnalyzer.java:956)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1634)
	at org.eclipse.wst.jsdt.core.dom.Block.accept0(Block.java:134)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:410)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:2088)
	at org.eclipse.wst.jsdt.core.dom.ForStatement.accept0(ForStatement.java:225)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisit(ASTRewriteAnalyzer.java:380)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisitList(ASTRewriteAnalyzer.java:418)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:412)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1624)
	at org.eclipse.wst.jsdt.core.dom.Block.accept0(Block.java:134)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:410)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1506)
	at org.eclipse.wst.jsdt.core.dom.FunctionDeclaration.accept0(FunctionDeclaration.java:471)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:637)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.rewriteParagraphList(ASTRewriteAnalyzer.java:956)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1406)
	at org.eclipse.wst.jsdt.core.dom.JavaScriptUnit.accept0(JavaScriptUnit.java:219)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite.internalRewriteAST(ASTRewrite.java:257)
	at org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite.rewriteAST(ASTRewrite.java:189)
	at org.eclipse.wst.jsdt.internal.corext.refactoring.code.ExtractMethodRefactoring.createChange(ExtractMethodRefactoring.java:514)
	at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:124)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2345)
	at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Root exception:
java.lang.NullPointerException
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteFlattener.visit(ASTRewriteFlattener.java:502)
	at org.eclipse.wst.jsdt.core.dom.ExpressionStatement.accept0(ExpressionStatement.java:144)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteFormatter.getFormattedResult(ASTRewriteFormatter.java:176)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doTextInsert(ASTRewriteAnalyzer.java:1111)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:632)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.rewriteParagraphList(ASTRewriteAnalyzer.java:956)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1634)
	at org.eclipse.wst.jsdt.core.dom.Block.accept0(Block.java:134)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:410)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:2088)
	at org.eclipse.wst.jsdt.core.dom.ForStatement.accept0(ForStatement.java:225)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisit(ASTRewriteAnalyzer.java:380)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisitList(ASTRewriteAnalyzer.java:418)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:412)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1624)
	at org.eclipse.wst.jsdt.core.dom.Block.accept0(Block.java:134)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:410)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doVisitUnchangedChildren(ASTRewriteAnalyzer.java:425)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1506)
	at org.eclipse.wst.jsdt.core.dom.FunctionDeclaration.accept0(FunctionDeclaration.java:471)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.voidVisit(ASTRewriteAnalyzer.java:404)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:637)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.rewriteParagraphList(ASTRewriteAnalyzer.java:956)
	at org.eclipse.wst.jsdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1406)
	at org.eclipse.wst.jsdt.core.dom.JavaScriptUnit.accept0(JavaScriptUnit.java:219)
	at org.eclipse.wst.jsdt.core.dom.ASTNode.accept(ASTNode.java:2354)
	at org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite.internalRewriteAST(ASTRewrite.java:257)
	at org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite.rewriteAST(ASTRewrite.java:189)
	at org.eclipse.wst.jsdt.internal.corext.refactoring.code.ExtractMethodRefactoring.createChange(ExtractMethodRefactoring.java:514)
	at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:124)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2345)
	at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)

Comment 1 Chris Jaun

2013-06-20 10:01:11 EDT

Thanks for the bug report. Marking this as a duplicate of 377383.

*** This bug has been marked as a duplicate of bug 377383 ***