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java.lang.ClassCastException: java.lang.NoClassDefFoundError	at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1166)	at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)	at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)	at weblogic.management.internal.RemoteMBeanServerImpl.private_invoke(RemoteMBeanServerImpl.java:985)	at weblogic.management.internal.RemoteMBeanServerImpl.invoke(RemoteMBeanServerImpl.java:943)	at weblogic.management.console.utils.Security.createObject(Security.java:766)	at weblogic.management.console.utils.Security.createProviderMBean(Security.java:897)	at weblogic.management.console.utils.Security.createMBean(Security.java:748)	at weblogic.management.console.utils.MBeans.createMBean(MBeans.java:1386)	at weblogic.management.console.actions.mbean.DoCreateMBeanAction.perform(DoCreateMBeanAction.java:173)	at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:173)	at weblogic.management.console.actions.internal.ActionServlet.doPost(ActionServlet.java:85)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)	at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6452)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)	at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)	at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)	at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)	at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)