现在安装了2个版本的Eclipse，我无法在外部类

时间：2018-05-17 15:10:31

标签： java eclipse

我有一个非常旧版本的Eclipse（Juno Build id：20130225-0426），我最近安装了Mars，因此我将拥有使用Java 7的最新版本。

现在，当我使用Juno安装时，我无法加载外部类的方法。只有我正在使用查找/自动完成的类的方法。

当我尝试加载我出现此错误对话框的方法时：   enter image description here

这在工作区日志中：

!ENTRY org.eclipse.core.jobs 4 2 2018-05-17 11:04:06.864
!MESSAGE An internal error occurred during: "".
!STACK 0
java.lang.LinkageError: loader constraint violation: when resolving method "org.eclipse.recommenders.utils.rcp.JdtUtils.getLocation(Lorg/eclipse/jdt/core/IPackageFragmentRoot;)Lcom/google/common/base/Optional;" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, org/eclipse/recommenders/internal/rcp/providers/ClasspathEntryInfoProvider, and the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) for resolved class, org/eclipse/recommenders/utils/rcp/JdtUtils, have different Class objects for the type ipse/jdt/core/IPackageFragmentRoot;)Lcom/google/common/base/Optional; used in the signature
    at org.eclipse.recommenders.internal.rcp.providers.ClasspathEntryInfoProvider.mapSourcePluginProjects(ClasspathEntryInfoProvider.java:220)
    at org.eclipse.recommenders.internal.rcp.providers.ClasspathEntryInfoProvider.onEvent(ClasspathEntryInfoProvider.java:172)
    at org.eclipse.recommenders.internal.rcp.providers.ClasspathEntryInfoProvider.scanOpenProjects(ClasspathEntryInfoProvider.java:132)
    at org.eclipse.recommenders.internal.rcp.providers.ClasspathEntryInfoProvider.access$1(ClasspathEntryInfoProvider.java:128)
    at org.eclipse.recommenders.internal.rcp.providers.ClasspathEntryInfoProvider$1.run(ClasspathEntryInfoProvider.java:105)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

!ENTRY org.eclipse.e4.ui.workbench 4 0 2018-05-17 11:04:07.488
!MESSAGE 
!STACK 0
org.eclipse.e4.core.di.InjectionException: java.lang.LinkageError: loader constraint violation: when resolving method "org.eclipse.recommenders.utils.rcp.JdtUtils.createUnresolvedType(Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;)Lcom/google/common/base/Optional;" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, org/eclipse/recommenders/internal/completion/rcp/BaseRecommendersCompletionContext, and the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) for resolved class, org/eclipse/recommenders/utils/rcp/JdtUtils, have different Class objects for the type (Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;)Lcom/google/common/base/Optional; used in the signature
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:63)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:231)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:212)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:171)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:277)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:496)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:547)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:368)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:314)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:83)
    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:1521)
    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:4976)
    at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2546)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3756)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1053)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    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:353)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
    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:629)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: java.lang.LinkageError: loader constraint violation: when resolving method "org.eclipse.recommenders.utils.rcp.JdtUtils.createUnresolvedType(Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;)Lcom/google/common/base/Optional;" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, org/eclipse/recommenders/internal/completion/rcp/BaseRecommendersCompletionContext, and the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) for resolved class, org/eclipse/recommenders/utils/rcp/JdtUtils, have different Class objects for the type (Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;)Lcom/google/common/base/Optional; used in the signature
    at org.eclipse.recommenders.internal.completion.rcp.BaseRecommendersCompletionContext.getReceiverType(BaseRecommendersCompletionContext.java:319)
    at org.eclipse.recommenders.internal.completion.rcp.calls.engine.CallsCompletionProposalComputer.findReceiver(CallsCompletionProposalComputer.java:156)
    at org.eclipse.recommenders.internal.completion.rcp.calls.engine.CallsCompletionProposalComputer.computeCompletionProposals(CallsCompletionProposalComputer.java:121)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:333)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:340)
    at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.collectProposals(ContentAssistProcessor.java:328)
    at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.computeCompletionProposals(ContentAssistProcessor.java:284)
    at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1839)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:566)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:563)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:498)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:492)
    at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1665)
    at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:183)
    at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
    at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:76)
    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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
    ... 47 more

我想在我的机器上安装两个版本的Eclipse，但是如果我需要恢复安装Juno，只要我能摆脱这个错误就可以了。

现在升级到新版本对我来说不是一个可接受的解决方案。

0 个答案:

没有答案
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