Eclipse 重构（重命名）抛出 NullpoinerException 导致的 ExecutionException

Question

昨天在编码时，我偶然发现我的 Eclipse IDE 中突然发生错误。我想重命名一个变量并按下（我应该并且我已经习惯了）ALT + SHIFT + R。然而，这在工具栏中打开了 Run。我想好吧，也许我按错了键，但这个错误一直在发生。

然后我尝试重新启动Eclipse，重新加载项目（删除它但没有删除磁盘上的内容并通过导入再次加载它）并且还删除了工作区但错误仍然发生。

然后我想也许安装有问题所以我重新安装了 Eclipse（顺便说一句。我使用的是最新的 06-2020 版本）。不过这也无济于事……

在大量使用谷歌之后，我还发现了以下文章，这个问题似乎类似于

• Can't refactor rename in Eclipse
• Eclipse refactoring fails -> Keeps throwing exceptions!
• https://www.eclipse.org/forums/index.php/t/375178/

但这些建议对我不起作用。

我在浏览错误日志时看到的是在使用重命名功能时发生了很多错误。我希望有人建议如何解决这个问题，因为用鼠标重命名也不再起作用了。

更多细节：

• 突然发生错误 > 它一直在工作，然后突然停止工作，而（至少我）不知道有任何变化
• 我使用 Windows 10 和 OpenJ9 JDK14 作为默认 JDK 和 JRE，所以 eclipse 也使用这个 JRE

错误：

!ENTRY org.eclipse.e4.ui.workbench 4 0 2020-08-22 09:57:49.697
!MESSAGE Execution exception for: ParameterizedCommand(Command(org.eclipse.jdt.ui.edit.text.java.rename.element,Rename - Refactoring ,
        Rename the selected element,
        Category(org.eclipse.jdt.ui.category.refactoring,Refactor - Java,Java Refactoring Actions,true),
        org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@bcbec4c7,
        ,,true),null) in 
    context chain: WorkbenchContext -> TrimmedWindowImpl (IDEWindow) Context -> PerspectiveImpl (org.eclipse.jdt.ui.JavaPerspective) Context -> PartImpl (org.eclipse.e4.ui.compatibility.editor)  removeOnHide org.eclipse.jdt.ui.CompilationUnitEditorContext
!STACK 0

org.eclipse.core.commands.ExecutionException: While executing the action, an exception occurred
    at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:126)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:97)
    at jdk.internal.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:319)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:253)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
    at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488)
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:308)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:584)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:653)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:443)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$2(KeyBindingDispatcher.java:386)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:96)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1248)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1036)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1046)
    at org.eclipse.swt.widgets.Control.traverse(Control.java:4257)
    at org.eclipse.swt.widgets.Control.translateMnemonic(Control.java:4107)
    at org.eclipse.swt.widgets.Composite.translateMnemonic(Composite.java:1240)
    at org.eclipse.swt.widgets.Composite.translateMnemonic(Composite.java:1243)
    at org.eclipse.swt.widgets.Control.translateMnemonic(Control.java:4125)
    at org.eclipse.swt.widgets.Display.translateMnemonic(Display.java:4824)
    at org.eclipse.swt.widgets.Display.filterMessage(Display.java:1266)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3626)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1158)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1047)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:658)
    at org.eclipse.ui.internal.Workbench$$Lambda$201/0000000000000000.run(Unknown Source)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:557)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:154)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1447)

Caused by: java.lang.NullPointerException
    at org.eclipse.jdt.internal.corext.dom.LinkedNodeFinder.getAssociatedRecordComponentNode(LinkedNodeFinder.java:68)
    at org.eclipse.jdt.internal.corext.dom.LinkedNodeFinder$BindingFinder.visit(LinkedNodeFinder.java:334)
    at org.eclipse.jdt.core.dom.SimpleName.accept0(SimpleName.java:198)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3019)
    at org.eclipse.jdt.core.dom.QualifiedName.accept0(QualifiedName.java:163)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3019)
    at org.eclipse.jdt.core.dom.InfixExpression.accept0(InfixExpression.java:356)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3019)
    at org.eclipse.jdt.core.dom.IfStatement.accept0(IfStatement.java:181)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3042)
    at org.eclipse.jdt.core.dom.Block.accept0(Block.java:128)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3019)
    at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:698)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3042)
    at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:447)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3042)
    at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:258)
    at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
    at org.eclipse.jdt.internal.corext.dom.LinkedNodeFinder.findByBinding(LinkedNodeFinder.java:145)
    at org.eclipse.jdt.internal.corext.dom.LinkedNodeFinder.findByNode(LinkedNodeFinder.java:165)
    at org.eclipse.jdt.internal.ui.refactoring.reorg.RenameLinkedMode.start(RenameLinkedMode.java:234)
    at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.run(RenameJavaElementAction.java:240)
    at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.doRun(RenameJavaElementAction.java:174)
    at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.run(RenameJavaElementAction.java:153)
    at org.eclipse.jdt.ui.actions.RenameAction.run(RenameAction.java:121)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:278)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:252)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
    at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:121)
    ... 53 more

Answer 1

这看起来像 Eclipse 错误564329，在 Eclipse 核心 4.17 M1（里程碑 1）中标记为已修复。因此，此修复程序将在计划于 2020 年 9 月发布的 2020-09 版本中。

Answer 2

临时修复：Window > Preferences > Java Compiler > 关闭“Enable preview features for Java 14”。启用“使用默认合规设置”。

Enable preview features setting