Hi,

When I open WLSDM console on our critical WebLogic domain, WLSDM "Servers smart dashboard" page gives below error. I've pasted the screen capture and the dashboard page does not come up. What could be the reason and need urgent solution? Please see error log below.

Error Log:

javax.servlet.ServletException: java.lang.InstantiationError: java.lang.Number
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:391)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.wlsdm.J.G.doFilter(RRFilter.java:155)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.bea.console.internal.ParamFilter.doFilter(ParamFilter.java:38)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3683)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3649)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:326)
        at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
        at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
        at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
        at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2433)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2281)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2259)
        at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1691)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1651)
        at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:270)
        at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:348)
        at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:333)
        at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:54)
        at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
        at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:640)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:406)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:346)
Caused by: java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1997)
<Apr 20, 2017, 7:08:35,776 PM EET> <Error> <HTTP> <BEA-101017> <[[email protected][app:consoleapp module:console path:null spec-version:3.1]] Root cause of ServletException.
java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1997)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
        Truncated. see log file for complete stacktrace
>
<Apr 20, 2017, 7:08:35,777 PM EET> <Notice> <Diagnostics> <BEA-320068> <Watch "UncheckedException" in module "Module-FMWDFW" with severity "Notice" on server "ADM-OSB-PROD-DMN" has triggered at Apr 20, 2017 7:08:35 PM EET. Notification details:
WatchRuleType: Log
WatchRule: (SEVERITY = 'Error') AND ((MSGID = 'WL-101020') OR (MSGID = 'WL-101017') OR (MSGID = 'WL-000802') OR (MSGID = 'BEA-101020') OR (MSGID = 'BEA-101017') OR (MSGID = 'BEA-000802'))
WatchData: MESSAGE = [[email protected][app:consoleapp module:console path:null spec-version:3.1]] Root cause of ServletException.
java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1997)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
        at weblogic.utils.io.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:209)
        at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputStream.java:630)
        at weblogic.rjvm.MsgAbbrevInputStream.readExtendedContexts(MsgAbbrevInputStream.java:265)
        at weblogic.rjvm.ResponseImpl.retrieveThreadLocalContext(ResponseImpl.java:203)
        at weblogic.rjvm.ResponseImpl.retrieveThreadLocalContext(ResponseImpl.java:178)
        at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:276)
        at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:301)
        at javax.management.remote.rmi.RMIConnectionImpl_12212_WLStub.getAttribute(Unknown Source)
        at weblogic.management.remote.common.RMIConnectionWrapper$12.run(ClientProviderBase.java:1136)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:368)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:163)
        at weblogic.security.Security.runAs(Security.java:62)
        at weblogic.management.remote.common.RMIConnectionWrapper.getAttribute(ClientProviderBase.java:1134)
        at sun.reflect.GeneratedMethodAccessor1048.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at weblogic.management.remote.common.InvocationContextProxyHandler.invoke(ClientProviderBase.java:675)
        at com.sun.proxy.$Proxy214.getAttribute(Unknown Source)
        at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getAttribute(RMIConnector.java:903)
        at weblogic.management.mbeanservers.domainruntime.internal.ManagedMBeanServerConnection.getAttribute(ManagedMBeanServerConnection.java:326)
        at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:273)
        at weblogic.management.jmx.MBeanServerInvocationHandler.doInvoke(MBeanServerInvocationHandler.java:519)
        at weblogic.management.jmx.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:391)
        at com.sun.proxy.$Proxy274.getServerRuntime(Unknown Source)
        at weblogic.management.mbeanservers.domainruntime.internal.DomainRuntimeServiceMBeanImpl.lookupServerRuntime(DomainRuntimeServiceMBeanImpl.java:286)
        at sun.reflect.GeneratedMethodAccessor1099.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at weblogic.management.jmx.modelmbean.WLSModelMBean.invoke(WLSModelMBean.java:531)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.JMXContextInterceptor.invoke(JMXContextInterceptor.java:249)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.SecurityMBeanMgmtOpsInterceptor.invoke(SecurityMBeanMgmtOpsInterceptor.java:65)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.SecurityInterceptor.invoke(SecurityInterceptor.java:439)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.MBeanCICInterceptor.invoke(MBeanCICInterceptor.java:301)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.PartitionJMXInterceptor.invoke(PartitionJMXInterceptor.java:431)
        at weblogic.management.mbeanservers.domainruntime.internal.FederatedMBeanServerInterceptor.invoke(FederatedMBeanServerInterceptor.java:355)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$21.run(WLSMBeanServerInterceptorBase.java:589)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.invoke(WLSMBeanServerInterceptorBase.java:587)
        at weblogic.management.mbeanservers.internal.CallerPartitionContextInterceptor.invoke(CallerPartitionContextInterceptor.java:217)
        at weblogic.management.jmx.mbeanserver.WLSMBeanServer.invoke(WLSMBeanServer.java:327)
        at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$11$1.run(JMXConnectorSubjectForwarder.java:655)
        at java.security.AccessController.doPrivileged(Native Method)
        at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$11.run(JMXConnectorSubjectForwarder.java:653)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:368)
        at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder.invoke(JMXConnectorSubjectForwarder.java:646)
        at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
        at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
        at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
        at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
        at javax.management.remote.rmi.RMIConnectionImpl_WLSkel.invoke(Unknown Source)
        at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:252)
        at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:299)
        at javax.management.remote.rmi.RMIConnectionImpl_12212_WLStub.invoke(Unknown Source)
        at weblogic.management.remote.common.RMIConnectionWrapper$16.run(ClientProviderBase.java:1306)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:368)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:163)
        at weblogic.security.Security.runAs(Security.java:62)
        at weblogic.management.remote.common.RMIConnectionWrapper.invoke(ClientProviderBase.java:1304)
        at sun.reflect.GeneratedMethodAccessor1063.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at weblogic.management.remote.common.InvocationContextProxyHandler.invoke(ClientProviderBase.java:684)
        at com.sun.proxy.$Proxy214.invoke(Unknown Source)
        at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.invoke(RMIConnector.java:1020)
        at weblogic.management.jmx.MBeanServerInvocationHandler.doInvoke(MBeanServerInvocationHandler.java:562)
        at weblogic.management.jmx.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:391)
        at com.sun.proxy.$Proxy273.lookupServerRuntime(Unknown Source)
        at com.wlsdm.L.a.getServerRuntimeMBean(MBSConnection.java:475)
        at com.wlsdm.frontend.provider.GA.getServerHealthState(PerformanceHealthDatas.java:123)
        at com.wlsdm.J.O.£(Data.java:6914)
        at com.wlsdm.J.O.A(Data.java:251)
        at com.wlsdm.J.O.doGet(Data.java:123)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.wlsdm.J.G.doFilter(RRFilter.java:155)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.bea.console.internal.ParamFilter.doFilter(ParamFilter.java:38)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3683)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3649)
weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:270)
        at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:348)
        at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:333)
        at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:54)
        at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
        at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:640)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:406)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:346)
Caused by: java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
<Apr 20, 2017, 7:08:35,777 PM EET> <Notice> <Diagnostics> <BEA-320068> <Watch "UncheckedException" in module "Module-FMWDFW" with severity "Notice" on server "ADM-OSB-PROD-DMN" has triggered at Apr 20, 2017 7:08:35 PM EET. Notification details:
WatchRuleType: Log
WatchRule: (SEVERITY = 'Error') AND ((MSGID = 'WL-101020') OR (MSGID = 'WL-101017') OR (MSGID = 'WL-000802') OR (MSGID = 'BEA-101020') OR (MSGID = 'BEA-101017') OR (MSGID = 'BEA-000802'))
WatchData: MESSAGE = [[email protected][app:consoleapp module:console path:null spec-version:3.1]] Root cause of ServletException.
java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1997)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
        at weblogic.utils.io.ChunkedObjectInputStream.readObject(ChunkedObjectInputStream.java:209)
        at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputStream.java:630)
        at weblogic.rjvm.MsgAbbrevInputStream.readExtendedContexts(MsgAbbrevInputStream.java:265)
        at weblogic.rjvm.ResponseImpl.retrieveThreadLocalContext(ResponseImpl.java:203)
        at weblogic.rjvm.ResponseImpl.retrieveThreadLocalContext(ResponseImpl.java:178)
        at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:276)
        at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:301)
        at javax.management.remote.rmi.RMIConnectionImpl_12212_WLStub.getAttribute(Unknown Source)
        at weblogic.management.remote.common.RMIConnectionWrapper$12.run(ClientProviderBase.java:1136)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:368)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:163)
        at weblogic.security.Security.runAs(Security.java:62)        weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.wlsdm.J.G.doFilter(RRFilter.java:155)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at com.bea.console.internal.ParamFilter.doFilter(ParamFilter.java:38)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3683)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3649)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:326)
        at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
        at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
        at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
        at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2433)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2281)
Caused by: java.lang.InstantiationError: java.lang.Number
        at sun.reflect.GeneratedSerializationConstructorAccessor87.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1006)
 

The error occurs when serverRuntime is requested ...

        At javax.management.remote.rmi.RMIConnector $ RemoteMBeanServerConnection.invoke (RMIConnector.java:1020)
        At weblogic.management.jmx.MBeanServerInvocationHandler.doInvoke (MBeanServerInvocationHandler.java:562)
        At weblogic.management.jmx.MBeanServerInvocationHandler.invoke (MBeanServerInvocationHandler.java:391)
        At com.sun.proxy. $ Proxy273.lookupServerRuntime (Unknown Source)
        At com.wlsdm.L.a.getServerRuntimeMBean (MBSConnection.java:475)
        At com.wlsdm.frontend.provider.GA.getServerHealthState (PerformanceHealthDatas.java:123)
        At com.wlsdm.J.O. £ (Data.java:6914)

The WLSDM serverRuntime object is requested via the weblogic console API, and the admin console is also calling managedServers for RMI.

→ Is there any problem on the WebLogic admin console > Servers page? (Just want to diagnose problem)
→ Is there any problem on the WebLogic console in general? Sometimes, network issues can affect WebLogic console and WLSDM console... Please check ConnectionDelayTime on Datasources dashbaord and let us know any sudden increment for this MBean...