Eclipse 卡在搜索对话框中答案

【问题标题】：Eclipse stuck for search dialog boxEclipse 卡在搜索对话框中
【发布时间】：2013-09-03 13:06:12
【问题描述】：

我的项目名为MyProject，当我在eclipse中按Ctrl + H搜索我的项目时弹出以下错误：

Search Dialog Problem
  An error occurred while creating the search page "Java Search"
  Reason:
  MyProject does not exist

当我查看日志时，我发现以下内容：

!ENTRY org.eclipse.search 4 1 2013-09-03 14:58:19.272
!MESSAGE Internal Error
!STACK 1
Java Model Exception: Java Model Status [MyProject does not exist]
    at org.eclipse.jdt.internal.core.JavaElement.newJavaModelException(JavaElement.java:505)
    at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:246)
    at org.eclipse.jdt.internal.core.Openable.openAncestors(Openable.java:504)
    at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:240)
    at org.eclipse.jdt.internal.core.Openable.openAncestors(Openable.java:504)
    at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:240)
    at org.eclipse.jdt.internal.core.Openable.openAncestors(Openable.java:504)
    at org.eclipse.jdt.internal.core.CompilationUnit.openAncestors(CompilationUnit.java:1170)
    at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:240)
    at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:518)
    at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:255)
    at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:241)
    at scala.tools.eclipse.javaelements.LazyToplevelClass.mirror$lzycompute(ScalaElements.scala:302)
    at scala.tools.eclipse.javaelements.LazyToplevelClass.mirror(ScalaElements.scala:300)
    at scala.tools.eclipse.javaelements.LazyToplevelClass.exists(ScalaElements.scala:314)
    at org.eclipse.jdt.internal.ui.search.JavaSearchPage$SearchPatternData.create(JavaSearchPage.java:189)
    at org.eclipse.jdt.internal.ui.search.JavaSearchPage.readConfiguration(JavaSearchPage.java:1112)
    at org.eclipse.jdt.internal.ui.search.JavaSearchPage.createControl(JavaSearchPage.java:518)
    at org.eclipse.search.internal.ui.SearchDialog$9.run(SearchDialog.java:710)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.search.internal.ui.SearchDialog$8.run(SearchDialog.java:705)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.search.internal.ui.SearchDialog.createPageControl(SearchDialog.java:703)
    at org.eclipse.search.internal.ui.SearchDialog.createPageArea(SearchDialog.java:418)
    at org.eclipse.search.internal.ui.util.ExtendedDialogWindow.createDialogArea(ExtendedDialogWindow.java:140)
    at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:760)
    at org.eclipse.jface.window.Window.create(Window.java:431)
    at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
    at org.eclipse.search.internal.ui.SearchDialog.create(SearchDialog.java:281)
    at org.eclipse.jface.window.Window.open(Window.java:790)
    at org.eclipse.search.internal.ui.OpenSearchDialogAction.run(OpenSearchDialogAction.java:54)
    at org.eclipse.search.internal.ui.OpenSearchDialogAction.run(OpenSearchDialogAction.java:45)
    at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:289)
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
    at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
    at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1262)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1104)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1100)
    at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1509)
    at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4640)
    at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4528)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972)
    at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2531)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
    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:344)
    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:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
!SUBENTRY 1 org.eclipse.jdt.core 4 969 2013-09-03 14:58:19.272
!MESSAGE MyProject does not exist

当然，我尝试在eclipse上删除我的项目，然后再次导入，但并没有解决问题。更糟糕的是，所有其他项目都有相同的错误，引用该项目，即使它不再在工作区中。

知道它是从哪里来的吗？

【问题讨论】：

我遇到了类似的问题。我不认为你有/没有安装 Scala-IDE？（目前是我的头号嫌疑人，虽然我还没有找到吸烟的证据）
哦，是的，我确实安装了 Scala IDE。这是否意味着它会干扰此命令？有时按下点“。”时发生事件。最多需要 15 秒才能回答“scala 完成花费了太多时间。取消？”或类似的东西。
是的，似乎 Scala-IDE 必须挂接到 Java 视图中。没有“Scala 搜索”（而我有单独的“C++ 搜索”、“Fortran 搜索”（不要问）和“Python 搜索”选项卡）。 Scala-IDE 只是重用 Java 搜索窗格来显示混合的 Java 和 Scala 结果——这非常方便。（同上调用层次结构。）必须调用一些 Scala-IDE 插件代码才能使其工作。

标签： eclipse scala-ide

【解决方案1】：

当我在命令行中执行 git 命令时，Eclipse 进入了这种状态。（切换分支或拉取更改。）我认为这是与 Scala-IDE 的一些交互。

通常不会出现查找对话框。但是，如果它确实出现，Java 面板将是空白的，并且在尝试关闭此模式对话框时，会从事件循环内部触发一个异常，并且窗口拒绝关闭。

我的解决方案是：

重新创建错误消息中提到的缺失项目。
再次尝试查找，阅读消息。（如果“查找”对话框没有关闭，请终止 Eclipse。）
在步骤 2 中预期的位置创建一个空文件（例如 src/main/scala/com/example/MyFile.scala）

然后问题就消失了，我可以再次删除虚拟项目。

【讨论】：