java.lang.UnsupportedClassVersionError
Everytime when I started SUN Application Server after starting the pointbase Database, I would face the following error message from server.log file:
======================================================
[#|2006-02-21T20:26:31.656+0800|SEVERE|sun-appserver-pe8.1_02|javax.enterprise.system.core|_ThreadID=10;|core.unexpected_error_occured_while_loading_system_app
java.lang.UnsupportedClassVersionError:
com/sun/ejb/containers/TimerBean_2100919770_ConcreteImpl
(Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native
Method)
at
java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at
java.lang.ClassLoader.defineClass(ClassLoader.java:448)
at
com.sun.enterprise.loader.EJBClassLoader.findClass(EJBClassLoader.java:494)
at
java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
com.sun.ejb.containers.BaseContainer.<init>(BaseContainer.java:267)
at
com.sun.ejb.containers.EntityContainer.<init>(EntityContainer.java:219)
at
com.sun.ejb.containers.TimerBeanContainer.<init>(TimerBeanContainer.java:39)
at
com.sun.ejb.containers.ContainerFactoryImpl.createContainer(ContainerFactoryImpl.java:234)
at
com.sun.enterprise.server.AbstractLoader.loadEjbs(AbstractLoader.java:477)
at
com.sun.enterprise.server.ApplicationLoader.load(ApplicationLoader.java:125)
at
com.sun.enterprise.server.TomcatApplicationLoader.load(TomcatApplicationLoader.java:95)
at
com.sun.enterprise.server.AbstractManager.loadSystem(AbstractManager.java:277)
at
com.sun.enterprise.server.SystemAppLifecycle.loadSystemApps(SystemAppLifecycle.java:134)
at
com.sun.enterprise.server.SystemAppLifecycle.onStartup(SystemAppLifecycle.java:75)
at
com.sun.enterprise.server.ApplicationServer.onStartup(ApplicationServer.java:300)
at
com.sun.enterprise.server.PEMain.run(PEMain.java:294)
at
com.sun.enterprise.server.PEMain.main(PEMain.java:220)
======================================================
The aftermath of the problem was that the TimerService became unavailable when accessing it. The relevant error messages were:
--
[#|2006-02-24T15:42:28.515+0800|INFO|sun-appserver-pe8.1_02|javax.enterprise.system.container.ejb|_ThreadID=13;|EJB5018: An exception was thrown during an ejb invocation on [TimerSessionBean]|#]
[#|2006-02-24T15:42:28.515+0800|INFO|sun-appserver-pe8.1_02|javax.enterprise.system.container.ejb|_ThreadID=13;|
javax.ejb.EJBException: EJB Timer service not available
at com.sun.ejb.containers.SessionContextImpl.getTimerService(SessionContextImpl.java:75)
at TimerSessionBean.myCreateTimer(TimerSessionBean.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.security.SecurityUtil$2.run(SecurityUtil.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.enterprise.security.application.EJBSecurityManager.doAsPrivileged(EJBSecurityManager.java:950)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:158)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:128)
at $Proxy43.myCreateTimer(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:123)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:648)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:192)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1709)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1569)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:951)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:181)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:721)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.dispatch(SocketOrChannelConnectionImpl.java:469)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.doWork(SocketOrChannelConnectionImpl.java:1258)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:409)
|#]
-
Any idea for the problem?
