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java.lang.NullPointerException: 	at weblogic.management.internal.MBeanProxy.getAttribute(MBeanProxy.java:253)	at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:187)	at $Proxy65.isDeployed(Unknown Source)	at weblogic.management.mbeans.custom.ApplicationManager.poll(ApplicationManager.java:744)	at weblogic.management.mbeans.custom.ApplicationManager.update(ApplicationManager.java:206)	at java.lang.reflect.Method.invoke(Native Method)	at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)	at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)	at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:359)	at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)	at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)	at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)	at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)	at $Proxy5.update(Unknown Source)	at weblogic.management.console.webapp._domain.__upload_app._jspService(__upload_app.java:149)	at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)	at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:241)	at weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:112)	at weblogic.management.console.actions.ForwardAction.perform(ForwardAction.java:35)	at weblogic.management.console.actions.internal.ActionServlet.doAction(ActionServlet.java:171)	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.invokeServlet(ServletStubImpl.java:265)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)	at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)	at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)	at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)	at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)