应用错误收集

我是JPA 2.0的新手。我正在使用eclipse juno创建一个JPA项目（eclipseLink 2.0.2）。

创建JPA项目时，我收到错误

在以下期间发生内部错误：＆＃34; JPA Facet文件更改事件处理程序＆＃34;

在检查日志时我得到了这个：

java.lang.NoClassDefFoundError： org / eclipse / persistence / jpa / jpql / AbstractJPQLQueryHelper at java.lang.ClassLoader.defineClass1（Native Method）at java.lang.ClassLoader.defineClass（ClassLoader.java:791）at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass（DefaultClassLoader.java:188）在 org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClassHoldingLock（ClasspathManager.java:632）在 org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass（ClasspathManager.java:607）在 org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl（ClasspathManager.java:568）在 org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl（ClasspathManager.java:492）在 org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass（ClasspathManager.java:465）在 org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass（DefaultClassLoader.java:216）在 org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass（BundleLoader.java:395）在 org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass（SingleSourcePackage.java:35）在 org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal（BundleLoader.java:461）在 org.eclipse.osgi.internal.loader.BundleLoader.findClass（BundleLoader.java:421）在 org.eclipse.osgi.internal.loader.BundleLoader.findClass（BundleLoader.java:412）在 org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass（DefaultClassLoader.java:107）在java.lang.ClassLoader.loadClass（ClassLoader.java:356）at org.eclipse.jpt.jpa.eclipselink.core.internal.context.persistence.EclipseLink2_0PersistenceXmlContextNodeFactory.buildPersistenceUnit（EclipseLink2_0PersistenceXmlContextNodeFactory.java:33）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.persistence.GenericPersistence.buildPersistenceUnit（GenericPersistence.java:179）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.persistence.GenericPersistence.initializePersistenceUnits（GenericPersistence.java:137）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.persistence.GenericPersistence。（GenericPersistence.java:55）在 org.eclipse.jpt.jpa.core.internal.context.persistence.AbstractPersistenceXmlContextNodeFactory.buildPersistence（AbstractPersistenceXmlContextNodeFactory.java:41）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.persistence.GenericPersistenceXml.buildPersistence（GenericPersistenceXml.java:163）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.persistence.GenericPersistenceXml。（GenericPersistenceXml.java:68）在 org.eclipse.jpt.jpa.core.internal.AbstractJpaFactory.buildPersistenceXml（AbstractJpaFactory.java:202）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.GenericRootContextNode.buildPersistenceXml（GenericRootContextNode.java:157）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.GenericRootContextNode.buildPersistenceXml（GenericRootContextNode.java:95）在 org.eclipse.jpt.jpa.core.internal.jpa1.context.GenericRootContextNode。（GenericRootContextNode.java:62）在 org.eclipse.jpt.jpa.core.internal.AbstractJpaFactory.buildRootContextNode（AbstractJpaFactory.java:195）在 org.eclipse.jpt.jpa.core.internal.AbstractJpaProject.buildRootContextNode（AbstractJpaProject.java:276）在 org.eclipse.jpt.jpa.core.internal.AbstractJpaProject。（AbstractJpaProject.java:251）在 org.eclipse.jpt.jpa.eclipselink.core.internal.EclipseLinkJpaProjectImpl。（EclipseLinkJpaProjectImpl.java:26）在 org.eclipse.jpt.jpa.eclipselink.core.internal.EclipseLinkJpaFactory.buildJpaProject（EclipseLinkJpaFactory.java:62）在 org.eclipse.jpt.jpa.eclipselink.core.internal.EclipseLink2_0JpaFactory.buildJpaProject（EclipseLink2_0JpaFactory.java:84）在 org.eclipse.jpt.jpa.eclipselink.core.internal.EclipseLink2_0JpaFactory.buildJpaProject（EclipseLink2_0JpaFactory.java:1）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject（InternalJpaProjectManager.java:616）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject（InternalJpaProjectManager.java:608）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.buildJpaProject（InternalJpaProjectManager.java:601）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.addJpaProject（InternalJpaProjectManager.java:582）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager.checkForJpaFacetTransition_（InternalJpaProjectManager.java:760）在 org.eclipse.jpt.jpa.core.internal.InternalJpaProjectManager $ FacetFileChangeEventHandlerCommand.execute（InternalJpaProjectManager.java:750）在 org.eclipse.jpt.common.core.internal.utility.command.CommandJobCommandAdapter.execute（CommandJobCommandAdapter.java:39）在 org.eclipse.jpt.common.core.internal.utility.command.JobCommandJob.run（JobCommandJob.java:42）在org.eclipse.core.internal.jobs.Worker.run（Worker.java:53）引起的 by：java.lang.ClassNotFoundException： org.eclipse.persistence.jpa.jpql.AbstractJPQLQueryHelper at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal（BundleLoader.java:501）在 org.eclipse.osgi.internal.loader.BundleLoader.findClass（BundleLoader.java:421）在 org.eclipse.osgi.internal.loader.BundleLoader.findClass（BundleLoader.java:412）在 org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass（DefaultClassLoader.java:107）在java.lang.ClassLoader.loadClass（ClassLoader.java:356）... 43更多

我找不到这个错误和日志引用的内容。任何帮助都会很棒，因为我现在正在努力。

先谢谢。

在以下期间发生内部错误：＆＃34; JPA Facet文件更改事件处理程序＆＃34;

2 个答案: