Eclipse+Lomboz+JBoss环境下，运行Lomboz EJB Test Client Wizard不成功，看不懂这个错误提示

双击改错误提示，在Exception Stack Trace栏有如下信息：
java.lang.NoSuchMethodError: org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor.setExtendsCompletionContext(Lorg/eclipse/jdt/core/IPackageFragment;)V
at com.objectlearn.jdt.j2ee.ui.wizards.CreateEJBTestClientWizardPage.packageChanged(CreateEJBTestClientWizardPage.java:422)
at org.eclipse.jdt.ui.wizards.NewTypeWizardPage.handleFieldChanged(NewTypeWizardPage.java:722)
at com.objectlearn.jdt.j2ee.ui.wizards.CreateEJBTestClientWizardPage.handleFieldChanged(CreateEJBTestClientWizardPage.java:346)
at org.eclipse.jdt.ui.wizards.NewContainerWizardPage.containerDialogFieldChanged(NewContainerWizardPage.java:285)
at org.eclipse.jdt.ui.wizards.NewContainerWizardPage.access$1(NewContainerWizardPage.java:280)
at org.eclipse.jdt.ui.wizards.NewContainerWizardPage$ContainerFieldAdapter.dialogFieldChanged(NewContainerWizardPage.java:267)
at org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField.dialogFieldChanged(DialogField.java:70)
at org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField.setText(StringDialogField.java:162)
at org.eclipse.jdt.ui.wizards.NewContainerWizardPage.setPackageFragmentRoot(NewContainerWizardPage.java:413)
at org.eclipse.jdt.ui.wizards.NewContainerWizardPage.initContainerPage(NewContainerWizardPage.java:140)
at com.objectlearn.jdt.j2ee.ui.wizards.CreateEJBTestClientWizardPage.init(CreateEJBTestClientWizardPage.java:307)
at com.objectlearn.jdt.j2ee.ui.wizards.CreateEJBTestClient.addPages(CreateEJBTestClient.java:98)
at org.eclipse.jface.wizard.WizardDialog.createContents(WizardDialog.java:493)
at org.eclipse.jface.window.Window.create(Window.java:375)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:983)
at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:101)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:989)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:555)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:505)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:419)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:833)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2803)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2448)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1569)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1540)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:285)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:144)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:102)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:220)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
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.core.launcher.Main.basicRun(Main.java:185)
at org.eclipse.core.launcher.Main.run(Main.java:710)
at org.eclipse.core.launcher.Main.main(Main.java:694)
第二条的该信息为：
An exception stack trace could not be found.