我已经创建了 JPA 项目（我使用 OpenJPA 2.0 作为 JPA 提供者）。
IDE：Websphere Software(RAD) 的 IBM Rational Software 架构师
JPA 提供者：OpenJPA
版本：2.0
数据库：Oracle
我在 Websphere（7.0 版）中创建了数据源，并尝试通过 JNDI 访问数据源。请在下面找到 persistence.xml。
<persistence version="2.0">
<persistence-unit name="DataSourceDemo">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>oracleDS</jta-data-source>
<class>com.nyl.ltc.auditlog.model.NylBatchPrint</class>
<properties>
<property name="openjpa.RuntimeUnenhancedClasses" value="supported" />
<property name="openjpa.ConnectionUserName"
value="admin" />
<property name="openjpa.ConnectionPassword" value="admin" />
<property name="openjpa.jdbc.Schema" value="SMSVC" />
</properties>
</persistence-unit>
</persistence>
所有数据库事务均成功，但出现以下异常。
Exception in thread "Attachment 49459" java.lang.UnsupportedOperationException: cannot get the capability, performing dispose of the retransforming environment
at com.ibm.tools.attach.javaSE.Attachment.loadAgentLibraryImpl(Native Method)
at com.ibm.tools.attach.javaSE.Attachment.loadAgentLibrary(Attachment.java:253)
at com.ibm.tools.attach.javaSE.Attachment.parseLoadAgent(Attachment.java:235)
at com.ibm.tools.attach.javaSE.Attachment.doCommand(Attachment.java:154)
at com.ibm.tools.attach.javaSE.Attachment.run(Attachment.java:116)
Exception in thread "P=221586:O=0:CT" java.lang.UnsupportedOperationException: cannot get the capability, performing dispose of the retransforming environment
at sun.instrument.InstrumentationImpl.isRetransformClassesSupported0(Native Method)
at sun.instrument.InstrumentationImpl.isRetransformClassesSupported(InstrumentationImpl.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:600)
at org.apache.openjpa.enhance.ClassRedefiner.canRedefineClasses(ClassRedefiner.java:123)
at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:122)
at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:304)
at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:228)
at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:202)
at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:213)
at com.ibm.ws.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:45)
at com.ibm.ws.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:30)
at com.nyl.ltc.auditlog.util.JPAUtil.getEntityManager(JPAUtil.java:45)
at com.nyl.ltc.auditlog.dao.sericeImpl.AuditLogDAOServiceImpl.persist(AuditLogDAOServiceImpl.java:27)
at com.nyl.ltc.auditlog.serviceImpl.AuditLogServiceImpl.persistAuditLog(AuditLogServiceImpl.java:20)
at com.nyl.ltc.auditlog.handlerImpl.AuditLogHandlerImpl.persistAuditlog(AuditLogHandlerImpl.java:22)
at com.main.Main.main(Main.java:19)
2203 DataSourceDemo INFO [P=221586:O=0:CT] openjpa.Enhance - Creating subclass for "[class com.nyl.
请让我知道为什么我得到了这个例外，我该如何解决？