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java.lang.NullPointerException
kodo.persistence.RollbackException: java.lang.NullPointerException	at kodo.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:468)	at jsp_servlet.__test._jspService(__test.java:131)	at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:225)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:127)