java.lang.NullPointerException: This exception has no message.

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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:387)
at weblogic.appc.compileEJB(appc.java:802)
at weblogic.appc.compileModules(appc.java:621)
at weblogic.appc.compileEAR(appc.java:733)
at weblogic.appc.compileInput(appc.java:458)
at weblogic.appc.runBody(appc.java:184)
at weblogic.utils.compiler.Tool.run(Tool.java:146)
at weblogic.utils.compiler.Tool.run(Tool.java:103)
at weblogic.appc.main(appc.java:1028)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at weblogic.ant.taskdefs.j2ee.CompilerTask.invokeMain(CompilerTask.java:278)
at weblogic.ant.taskdefs.j2ee.Appc.execute(Appc.java:179)
at org.apache.tools.ant.Task.perform(Task.java:341)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1339)
at org.apache.tools.ant.Project.executeTargets(Project.java:1255)
at org.apache.tools.ant.Main.runBuild(Main.java:609)
at org.apache.tools.ant.Main.start(Main.java:196)
at weblogic.ejb20.ejbc.EJBCompiler.setupEJB(EJBCompiler.java:164)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:415)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:387)
at weblogic.appc.compileEJB(appc.java:802)
at weblogic.appc.compileModules(appc.java:621)
at weblogic.appc.compileEAR(appc.java:733)
at weblogic.appc.compileInput(appc.java:458)
at weblogic.appc.runBody(appc.java:184)
at weblogic.utils.compiler.Tool.run(Tool.java:146)
at weblogic.utils.compiler.Tool.run(Tool.java:103)
at weblogic.appc.main(appc.java:1028)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at weblogic.ant.taskdefs.j2ee.CompilerTask.invokeMain(CompilerTask.java:278)
at weblogic.ant.taskdefs.j2ee.Appc.execute(Appc.java:179)
at org.apache.tools.ant.Task.perform(Task.java:341)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1339)
at org.apache.tools.ant.Project.executeTargets(Project.java:1255)
at org.apache.tools.ant.Main.runBuild(Main.java:609)
at org.apache.tools.ant.Main.start(Main.java:196)

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