以前に実行していたポートレットが「JPAエンティティの設定...」のときにエラーをスローしました（昨日この機能を正常に使用しました）。次のようなメッセージ
org.eclipse.core.runtime.CoreException: org/eclipse/jpt/ui/internal/utility/SynchronousUiCommandExecutor
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard.performFinish(Unknown Source)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(Unknown Source)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(Unknown Source)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Unknown Source)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.eclipse.jface.window.Window.runEventLoop(Unknown Source)
at org.eclipse.jface.window.Window.open(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.launcher.AbstractDialogLauncher.launch(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.launcher.AbstractEntityConfigWizardLauncher.launch(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.action.EntityConfigAction.run(Unknown Source)
at org.eclipse.ui.internal.PluginAction.runWithEvent(Unknown Source)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(Unknown Source)
at org.eclipse.jface.action.ActionContributionItem.access$2(Unknown Source)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.eclipse.ui.internal.Workbench.runEventLoop(Unknown Source)
at org.eclipse.ui.internal.Workbench.runUI(Unknown Source)
at org.eclipse.ui.internal.Workbench.access$4(Unknown Source)
at org.eclipse.ui.internal.Workbench$7.run(Unknown Source)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Unknown Source)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Unknown Source)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(Unknown Source)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(Unknown Source)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Unknown Source)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(Unknown Source)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(Unknown Source)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(Unknown Source)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Unknown Source)
at org.eclipse.equinox.launcher.Main.basicRun(Unknown Source)
at org.eclipse.equinox.launcher.Main.run(Unknown Source)
at org.eclipse.equinox.launcher.Main.main(Unknown Source)
Contains: org/eclipse/jpt/ui/internal/utility/SynchronousUiCommandExecutor
Contains: org/eclipse/jpt/ui/internal/utility/SynchronousUiCommandExecutor
Contains: org/eclipse/jpt/ui/internal/utility/SynchronousUiCommandExecutor
java.lang.NoClassDefFoundError: org/eclipse/jpt/ui/internal/utility/SynchronousUiCommandExecutor
at com.ibm.jee.jpa.entity.config.internal.codegen.EntityConfigCodeGenOperation.run(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.wizard.entityconfig.operation.JpaEntityConfigWizardDelegateOperation.execute(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.wizard.entityconfig.operation.JpaBaseWizardOperation$WizardWorkspaceBatchOperation.run(Unknown Source)
at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(Unknown Source)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(Unknown Source)
at org.eclipse.core.internal.resources.Workspace.run(Unknown Source)
at org.eclipse.jdt.core.JavaCore.run(Unknown Source)
at org.eclipse.jdt.core.JavaCore.run(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.wizard.entityconfig.operation.JpaBaseWizardOperation$WizardWorkspaceBatchJob.run(Unknown Source)
at com.ibm.jee.jpa.entity.config.internal.wizard.entityconfig.operation.JpaBaseWizardOperation.execute(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl$1.run(Unknown Source)
at org.eclipse.core.internal.resources.Workspace.run(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.runOperation(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.runOperation(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.doExecute(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.executeImpl(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.cacheThreadAndContinue(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.execute(Unknown Source)
at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard$1CatchThrowableRunnableWithProgress.run(Unknown Source)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(Unknown Source)
いくつかのコンテキスト-JPA、基本的なJSF機能の学習デモとしてRADで開発されたポートレットアプリケーション。RAD 8.5、JSF 2.0、およびprimefacesを使用します。最近の変更は、primefaces機能をインポートし、jsfコンポーネント用にこれにリンクすることでした。Webページがまだデータをフェッチしているため、JPA接続は引き続き機能しているはずです（再起動後、キャッシュしないでください）。
何か案は..