Hi Team,
I meet a problem for MBean settings using RMI. My project registered some
mbeans, it can be called successfully using mbean call on the deployed jetty
applications, while when I tried to call it via JConsole, below exceptions are
thrown:
{timestamp:2018.08.14 at 02:45:21
PDT,debuge_level:ERROR,class_name:oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase,line_number:390,message:Failed
to load object from table. wlng_mgmt_users}
java.lang.NullPointerException: null
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbc.operationFailed(WlngCacheStoreJdbc.java:56)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase.postProcess(WlngCacheStoreJdbcBase.java:492)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase.load(WlngCacheStoreJdbcBase.java:387)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.tc.StoreImpl.containsKey(StoreImpl.java:101)
~[storage.jar:?]
at
oracle.ocsg.gateway.user.management.store.ManagementUserMBeanImpl.addUser(ManagementUserMBeanImpl.java:242)
~[ocsg_core.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:1.8.0_171]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:1.8.0_171]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
~[?:1.8.0_171]
at sun.reflect.GeneratedMethodAccessor53.invoke(Unknown Source) ~[?:?]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
~[?:1.8.0_171]
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
~[?:1.8.0_171]
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
~[?:1.8.0_171]
at javax.management.StandardMBean.invoke(StandardMBean.java:405)
~[?:1.8.0_171]
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
~[?:1.8.0_171]
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source) ~[?:?]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
~[?:1.8.0_171]
at sun.rmi.transport.Transport$1.run(Transport.java:200) ~[?:1.8.0_171]
at sun.rmi.transport.Transport$1.run(Transport.java:197) ~[?:1.8.0_171]
at java.security.AccessController.doPrivileged(Native Method)
~[?:1.8.0_171]
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:835)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
~[?:1.8.0_171]
at java.security.AccessController.doPrivileged(Native Method)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
[?:1.8.0_171]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_171]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_171]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
{timestamp:2018.08.14 at 02:45:21
PDT,debuge_level:ERROR,class_name:oracle.ocsg.gateway.user.management.store.ManagementUserMBeanImpl,line_number:251,message:Fail
to add user opp reason is java.lang.NullPointerException}
{timestamp:2018.08.14 at 02:50:00
PDT,debuge_level:INFO,class_name:oracle.ocsg.gateway.statistics.StatisticsServiceImpl,line_number:881,message:New
next license validation time: 1534323600000 last exec time: 1534239900039}
{timestamp:2018.08.14 at 02:58:22
PDT,debuge_level:ERROR,class_name:oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase,line_number:390,message:Failed
to load object from table. wlng_mgmt_users}
java.lang.NullPointerException: null
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbc.operationFailed(WlngCacheStoreJdbc.java:56)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase.postProcess(WlngCacheStoreJdbcBase.java:492)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.db.WlngCacheStoreJdbcBase.load(WlngCacheStoreJdbcBase.java:387)
~[storage.jar:?]
at
oracle.ocsg.gateway.storage.tc.StoreImpl.containsKey(StoreImpl.java:101)
~[storage.jar:?]
at
oracle.ocsg.gateway.user.management.store.ManagementUserMBeanImpl.addUser(ManagementUserMBeanImpl.java:242)
~[ocsg_core.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:1.8.0_171]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:1.8.0_171]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
~[?:1.8.0_171]
at sun.reflect.GeneratedMethodAccessor53.invoke(Unknown Source) ~[?:?]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
~[?:1.8.0_171]
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
~[?:1.8.0_171]
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
~[?:1.8.0_171]
at javax.management.StandardMBean.invoke(StandardMBean.java:405)
~[?:1.8.0_171]
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
~[?:1.8.0_171]
at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
~[?:1.8.0_171]
at
javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
~[?:1.8.0_171]
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source) ~[?:?]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
~[?:1.8.0_171]
at sun.rmi.transport.Transport$1.run(Transport.java:200) ~[?:1.8.0_171]
at sun.rmi.transport.Transport$1.run(Transport.java:197) ~[?:1.8.0_171]
at java.security.AccessController.doPrivileged(Native Method)
~[?:1.8.0_171]
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:835)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
~[?:1.8.0_171]
at java.security.AccessController.doPrivileged(Native Method)
~[?:1.8.0_171]
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
[?:1.8.0_171]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_171]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_171]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
{timestamp:2018.08.14 at 02:58:22
PDT,debuge_level:ERROR,class_name:oracle.ocsg.gateway.user.management.store.ManagementUserMBeanImpl,line_number:251,message:Fail
to add user opp reason is java.lang.NullPointerException}
I’m hesitating it should be the classloader issue when doing the RMI call. Can
any guys suggest something to resolve this issue?
Thanks!
Lin
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