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java.lang.ClassCastException: $Proxy79 at weblogic.servlet.internal.session.SessionData.getServletSessionRuntimeMBean(SessionData.java:271) at weblogic.servlet.internal.session.SessionContext.getServletSessionRuntimeMBean(SessionContext.java:199) at weblogic.servlet.internal.session.SessionContext.getServletSessionRuntimeMBeans(SessionContext.java:216) at weblogic.servlet.internal.WebAppServletContext.getServletSessionRuntimeMBeans(WebAppServletContext.java:2442) at weblogic.servlet.internal.WebAppRuntimeMBeanImpl.getServletSessions(WebAppRuntimeMBeanImpl.java:126) at java.lang.reflect.Method.invoke(Native Method)