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java.lang.NullPointerException: 	at weblogic.ejb20.deployer.SessionBeanInfoImpl.assignDefaultTXAttributesIfNecessary(SessionBeanInfoImpl.java:291)	at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeTransactionAttribute(MBeanDeploymentInfoImpl.java:807)	at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.(MBeanDeploymentInfoImpl.java:240)	at weblogic.ejb20.ejbc.EJBCompiler.setupEJB(EJBCompiler.java:155)	at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:415)	at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:397)	at weblogic.ejbc20.runBody(ejbc20.java:517)	at weblogic.utils.compiler.Tool.run(Tool.java:146)	at weblogic.utils.compiler.Tool.run(Tool.java:103)	at weblogic.ejbc.main(ejbc.java:29)