我添加一些初步信息。对于一个论文项目，我需要开发 BPEL。目前我是Linux操作环境，安装在虚拟机上。通过 Eclipse 的“安装新软件”功能，我安装了 SOA 开发的插件。我从 Eclipse 添加了一个新服务器，即 Apache ODE，其环境变量设置正确。完成此操作后，我去创建一个新的 BPEL 项目，创建后，右键单击
bpelContent.bpeljava.lang.LinkageError: loader constraint violation for class org.eclipse.bpel.model.impl.BPELExtensibleElementImpl: when selecting overriding method 'javax.wsdl.extensions.ExtensibilityElement org.eclipse.bpel.model.impl.BPELExtensibleElementImpl.removeExtensibilityElement(javax.wsdl.extensions.ExtensibilityElement)' the class loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @817cd05 of the selected method's type org.eclipse.bpel.model.impl.BPELExtensibleElementImpl, and the class loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6954431a for its super type org.eclipse.wst.wsdl.internal.impl.ExtensibleElementImpl have different Class objects for the type javax.wsdl.extensions.ExtensibilityElement used in the signature (org.eclipse.bpel.model.impl.BPELExtensibleElementImpl is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @817cd05, parent loader 'platform'; org.eclipse.wst.wsdl.internal.impl.ExtensibleElementImpl is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @6954431a, parent loader 'platform')
at org.eclipse.bpel.model.impl.BPELFactoryImpl.createProcess(BPELFactoryImpl.java:339)
at org.eclipse.bpel.model.resource.BPELReader.xml2Process(BPELReader.java:960)
at org.eclipse.bpel.model.resource.BPELReader.xml2Resource(BPELReader.java:944)
at org.eclipse.bpel.model.resource.BPELReader.pass1(BPELReader.java:403)
at org.eclipse.bpel.model.resource.BPELReader.read(BPELReader.java:235)
at org.eclipse.bpel.model.resource.BPELResourceImpl.doLoad(BPELResourceImpl.java:140)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1563)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1342)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:406)
at org.eclipse.bpel.common.ui.editmodel.ResourceInfo.load(ResourceInfo.java:246)
at org.eclipse.bpel.common.ui.editmodel.EditModel.getResourceInfo(EditModel.java:220)
at org.eclipse.bpel.common.ui.editmodel.EditModelClient.loadPrimaryResource(EditModelClient.java:61)
at org.eclipse.bpel.ui.util.BPELEditModelClient.loadPrimaryResource(BPELEditModelClient.java:59)
at org.eclipse.bpel.ui.BPELMultipageEditorPart.loadModel(BPELMultipageEditorPart.java:1121)
at org.eclipse.bpel.ui.BPELMultipageEditorPart.createDesignPage(BPELMultipageEditorPart.java:425)
at org.eclipse.bpel.ui.BPELMultipageEditorPart.createPages(BPELMultipageEditorPart.java:481)
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:333)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:158)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:96)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:365)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:976)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:938)
at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:138)
at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:385)
at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:311)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:203)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:91)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:60)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:42)
at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:132)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:995)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:659)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:763)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:728)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:712)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.lambda$0(PartServiceImpl.java:105)
at org.eclipse.e4.ui.services.internal.events.UIEventHandler.lambda$0(UIEventHandler.java:38)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:183)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:5959)
at org.eclipse.e4.ui.workbench.swt.DisplayUISynchronize.syncExec(DisplayUISynchronize.java:34)
at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:208)
at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:206)
at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151)
at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:133)
at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:75)
at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:44)
at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:55)
at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:63)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElementGen(ElementContainerImpl.java:170)
at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:188)
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:661)
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:625)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:796)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:401)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1270)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3233)
at org.eclipse.ui.internal.WorkbenchPage.lambda$11(WorkbenchPage.java:3123)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3121)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3091)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3074)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:582)
at org.eclipse.bpel.ui.wizards.NewBpelFileWizard$2.run(NewBpelFileWizard.java:191)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:5039)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4519)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:648)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:555)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
at org.eclipse.equinox.launcher.Main.run(Main.java:1459)
at org.eclipse.equinox.launcher.Main.main(Main.java:1432)
老实说，我无法理解问题的本质。
LinkageError这是错误日志视图中的第一个错误：
eclipse.buildId=4.30.0.20231201-1200
java.version=21.0.2
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=it_IT
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product
This is a continuation of log file /home/azaprocky/eclipse-workspace/.metadata/.bak_0.log
Created Time: 2024-03-04 10:17:54.108
org.eclipse.ui
Error
Mon Mar 04 10:18:20 CET 2024
Unhandled event loop exception
java.lang.NullPointerException: Cannot invoke "org.eclipse.e4.core.contexts.IEclipseContext.get(java.lang.Class)" because "this.e4Context" is null
at org.eclipse.ui.internal.PartSite.getKeyBindingService(PartSite.java:548)
at org.eclipse.ui.part.MultiPageEditorPart.deactivateSite(MultiPageEditorPart.java:867)
at org.eclipse.ui.part.MultiPageEditorPart.pageChange(MultiPageEditorPart.java:796)
at org.eclipse.bpel.ui.BPELMultipageEditorPart.pageChange(BPELMultipageEditorPart.java:1383)
at org.eclipse.ui.part.MultiPageEditorPart.lambda$1(MultiPageEditorPart.java:271)
at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5854)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1538)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1316)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3252)
at org.eclipse.swt.custom.CTabFolder.onFocus(CTabFolder.java:1749)
at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:327)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5854)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1534)
at org.eclipse.swt.widgets.Control.sendFocusEvent(Control.java:4936)
at org.eclipse.swt.widgets.Control.gtk_event_after(Control.java:3800)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2497)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:6883)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:6162)
at org.eclipse.swt.internal.gtk.GTK.gtk_widget_grab_focus(Native Method)
at org.eclipse.swt.widgets.Control.forceFocus(Control.java:2955)
at org.eclipse.swt.widgets.Composite.forceFocus(Composite.java:723)
at org.eclipse.swt.widgets.Control.forceFocus(Control.java:2948)
at org.eclipse.swt.widgets.Control.setFocus(Control.java:5525)
at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1674)
at org.eclipse.swt.custom.CTabFolder.setFocus(CTabFolder.java:2690)
at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1672)
at org.eclipse.ui.internal.ErrorEditorPart.setFocus(ErrorEditorPart.java:84)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.delegateSetFocus(CompatibilityPart.java:226)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:298)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:304)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:226)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:148)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.focusGui(PartRenderingEngine.java:790)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:773)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:686)
at org.eclipse.e4.ui.internal.workbench.swt.AbstractPartRenderer.activate(AbstractPartRenderer.java:97)
at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.lambda$0(ContributedPartRenderer.java:63)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5854)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1555)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1538)
at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:2213)
at org.eclipse.swt.widgets.Control.gtk_button_press_event(Control.java:3606)
at org.eclipse.swt.widgets.Control.gtk_button_press_event(Control.java:3499)
at org.eclipse.swt.widgets.Button.gtk_button_press_event(Button.java:596)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2491)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:6883)
at org.eclipse.swt.widgets.Button.windowProc(Button.java:1349)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:6162)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_do_event(Native Method)
at org.eclipse.swt.widgets.Display.eventProc(Display.java:1597)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_iteration_do(Native Method)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4513)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:648)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:555)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
at org.eclipse.equinox.launcher.Main.run(Main.java:1459)
at org.eclipse.equinox.launcher.Main.main(Main.java:1432)