【发布时间】:2015-01-27 01:58:16
【问题描述】:
我只是不知道是什么导致了 Eclipse 中的 stackoverflow 问题。其实我知道,但我不知道为什么。我尝试了以下方法:
- 重新启动我的电脑 - 呵呵
- Eclipse.exe -clean
- 重新安装了新的 eclipse
- 每次都测试完全相同的代码,每次出现完全相同的代码都会导致eclipse崩溃。代码是一个 lambda 表达式。这一切都很好,直到我按下句点键“。”用于 switch 语句中的代码完成。
我的代码是:
albumList.getSelectionModel().selectedItemProperty()
.addListener((ObservableValue obs, AbstractAlbum oldAlbum, AbstractAlbum selectedAlbum) -> {
switch (type){
test. // It doesn't matter what variable I use, valid or not, after the dot, eclipse crashes
}
});
我找不到我的代码有什么问题。我在这里遵循了本教程:http://code.makery.ch/java/javafx-8-tutorial-intro/,它也有一个 lambda 表达式。我试图向这段代码添加一个开关,但它又崩溃了:
lastNameColumn.setCellValueFactory(cellData -> {
switch (type){
test. // again it crashed after a dot
}
});
有人可以确认他们是否可以复制这个吗?我正在使用新的 Eclipse: Luna for java developer 64x - 最新的软件包。这是来自 eclipse 的日志:
!ENTRY org.eclipse.ui 4 0 2014-11-28 22:19:08.889
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.StackOverflowError)
at org.eclipse.swt.SWT.error(SWT.java:4441)
at org.eclipse.swt.SWT.error(SWT.java:4356)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:139)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
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:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Caused by: java.lang.StackOverflowError
at org.eclipse.jdt.internal.codeassist.UnresolvedReferenceNameFinder.visit(UnresolvedReferenceNameFinder.java:292)
at org.eclipse.jdt.internal.compiler.ast.Block.traverse(Block.java:138)
at org.eclipse.jdt.internal.compiler.ast.Initializer.traverse(Initializer.java:130)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1427)
at org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression.traverse(QualifiedAllocationExpression.java:603)
at org.eclipse.jdt.internal.compiler.ast.LambdaExpression.traverse(LambdaExpression.java:645)
at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1015)
at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:347)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1434)
at org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression.traverse(QualifiedAllocationExpression.java:603)
at org.eclipse.jdt.internal.compiler.ast.LambdaExpression.traverse(LambdaExpression.java:645)
at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1015)
at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:347)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1434)
at org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression.traverse(QualifiedAllocationExpression.java:603)
at org.eclipse.jdt.internal.compiler.ast.LambdaExpression.traverse(LambdaExpression.java:645)
at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1015)
at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:347)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1434)
at org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression.traverse(QualifiedAllocationExpression.java:603)
【问题讨论】:
-
好吧,您可能已经在 Eclipse 中发现了一个错误。打开错误报告;)
-
嗯...我希望这不是一个错误。我如何在没有 switch 语句的情况下进行编码:( ...短于更改 IDE ...在解决此问题之前,我可能必须禁用内容辅助 :(
-
使用
Collectors中的groupingBy方法创建与每个切换原因匹配的对象组。然后为每个组调用您的代码。 -
我以前从未使用过收集器。你能举一个例子来说明你将如何使用它来替换 switch 语句吗?
-
两年后的主要版本,这种情况仍在发生。 Eclipse 仍然无法处理 Lambda 表达式!