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java - 从插件调用代码时出错 : "org.eclipse.jface"

转载 作者：行者123 更新时间：2023-12-01 18:40:09 25 4
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我正在开发 STS IDE 版本 3.9.9.RELEASE。

我有一个 Spring Boot 应用程序，该应用程序运行得很好，突然发生了一件奇怪的事情。现在，当我尝试通过单击运行配置来配置运行环境时，我在错误日志中收到以下错误，并且无法运行我的应用程序。

当我点击运行配置时，我也会收到附加的弹出窗口

enter image description here 

java.lang.NullPointerException
    at org.eclipse.jdt.launching.JavaRuntime.newProjectRuntimeClasspathEntry(JavaRuntime.java:686)
    at org.eclipse.m2e.jdt.internal.InternalModuleSupport.newModularProjectRuntimeClasspathEntry(InternalModuleSupport.java:367)
    at org.eclipse.m2e.jdt.internal.ModuleSupport.newModularProjectRuntimeClasspathEntry(ModuleSupport.java:118)
    at org.eclipse.m2e.jdt.internal.launch.MavenRuntimeClasspathProvider.computeUnresolvedClasspath(MavenRuntimeClasspathProvider.java:99)
    at org.eclipse.jdt.internal.launching.RuntimeClasspathProvider.computeUnresolvedClasspath(RuntimeClasspathProvider.java:60)
    at org.eclipse.jdt.launching.JavaRuntime.computeUnresolvedRuntimeClasspath(JavaRuntime.java:1636)
    at org.eclipse.jdt.debug.ui.launchConfigurations.JavaClasspathTab.createClasspathModel(JavaClasspathTab.java:288)
    at org.eclipse.jdt.debug.ui.launchConfigurations.JavaClasspathTab.refresh(JavaClasspathTab.java:276)
    at org.eclipse.jdt.debug.ui.launchConfigurations.JavaClasspathTab.initializeFrom(JavaClasspathTab.java:239)
    at org.springframework.ide.eclipse.boot.launch.BootClasspathTab.initializeFrom(BootClasspathTab.java:41)
    at org.eclipse.debug.ui.AbstractLaunchConfigurationTabGroup.initializeFrom(AbstractLaunchConfigurationTabGroup.java:93)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupWrapper.initializeFrom(LaunchConfigurationTabGroupWrapper.java:204)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.displayInstanceTabs(LaunchConfigurationTabGroupViewer.java:875)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.lambda$4(LaunchConfigurationTabGroupViewer.java:736)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.inputChanged(LaunchConfigurationTabGroupViewer.java:751)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.setInput0(LaunchConfigurationTabGroupViewer.java:683)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.setInput(LaunchConfigurationTabGroupViewer.java:663)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.handleLaunchConfigurationSelectionChanged(LaunchConfigurationsDialog.java:1050)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog$4.selectionChanged(LaunchConfigurationsDialog.java:617)
    at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:874)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
    at org.eclipse.ui.internal.JFaceUtil.lambda$0(JFaceUtil.java:47)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:176)
    at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:871)
    at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1240)
    at org.eclipse.jface.viewers.StructuredViewer.lambda$0(StructuredViewer.java:1263)
    at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
    at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:264)
    at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:259)
    at org.eclipse.jface.util.OpenStrategy$1.lambda$1(OpenStrategy.java:429)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3933)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3564)
    at org.eclipse.jface.window.Window.runEventLoop(Window.java:821)
    at org.eclipse.jface.window.Window.open(Window.java:797)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.open(LaunchConfigurationsDialog.java:1239)
    at org.eclipse.debug.ui.DebugUITools.lambda$1(DebugUITools.java:630)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72)
    at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:636)
    at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:574)
    at org.eclipse.debug.ui.actions.OpenLaunchDialogAction.run(OpenLaunchDialogAction.java:85)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:476)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:568)
    at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:400)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4145)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1064)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:778)
    at org.eclipse.jface.action.ActionContributionItem.lambda$8(ActionContributionItem.java:1260)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4145)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3958)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3561)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:628)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:199)
    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:391)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:246)
    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:659)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1501)

session 数据:

eclipse.buildId=3.9.9.201906181641-RELEASE-e49
java.version=1.8.0_102
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments:  -product org.springsource.sts.ide
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.springsource.sts.ide -clean

解决方案已尝试:我已经尝试过以下解决方案，但没有成功:

  1. 我尝试升级STS，升级成功。但是错误仍然存​​在。目前它处于 3.9.9.RELEASE 版本。

  2. 我也通过清理缓存使用命令提示符运行 IDE，应用程序正确打开，但错误仍然存​​在:

    STS.exe -clean

另附有错误事件的屏幕截图

enter image description here

最佳答案

以下解决方案对我有用

  1. 已从 STS-Eclipse 工作区中删除项目，方法是从工作区中删除项目，并确保不要删除项目的内容。
  2. 再次从同一目录导入项目。
  3. 右键单击项目 ---> 单击运行方式 --> 单击运行配置 ----> 添加新配置。现在我可以添加新配置，并且“应用按钮”也可以正常工作。
  4. 之前添加的配置仍然无法正常工作，但新添加的配置可以正常工作。

如果我们有其他解决方案来解决此问题，请告诉我

关于java - 从插件调用代码时出错 : "org.eclipse.jface"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59949800/

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