this error appear whe i run my aplication, i used jsf & hibernate & hibernate entity manager. please help me. and net beans 5.5 with jdk1.5
please......help me.
hibernate 3.2

[b]hibernate entity manager [b]

[#|2007-03-17T21:58:39.296+0700|WARNING|sun-appserver-pe9.0|javax.enterprise.system.core|_ThreadID=10;_ThreadName=main;_RequestID=396b155b-c625-44e3-ad30-af511bfdb13c;|CORE5016: Unexpected error occurred while loading applications
javax.management.MBeanException
at com.sun.enterprise.server.ApplicationLoader.createRootMBean(ApplicationLoader.java:287)
at com.sun.enterprise.server.AbstractManager.load(AbstractManager.java:185)
at com.sun.enterprise.server.ApplicationLifecycle.onStartup(ApplicationLifecycle.java:204)
at com.sun.enterprise.server.ApplicationServer.onStartup(ApplicationServer.java:326)
at com.sun.enterprise.server.ondemand.OnDemandServer.onStartup(OnDemandServer.java:112)
at com.sun.enterprise.server.PEMain.run(PEMain.java:326)
at com.sun.enterprise.server.PEMain.main(PEMain.java:260)
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:585)
at com.sun.enterprise.server.PELaunch.main(PELaunch.java:272)
Caused by: java.lang.NullPointerException
at com.sun.enterprise.management.util.J2EEManagementObjectManager.createAppMBean(J2EEManagementObjectManager.java:492)
at com.sun.enterprise.server.ApplicationLoader.createRootMBean(ApplicationLoader.java:276)
... 11 more
|#]

[#|2007-03-17T21:58:39.437+0700|INFO|sun-appserver-pe9.0|javax.enterprise.system.core.selfmanagement|_ThreadID=10;_ThreadName=main;|SMGT0007: Self Management Rules service is enabled|#]

[#|2007-03-17T21:58:40.296+0700|INFO|sun-appserver-pe9.0|javax.enterprise.system.core|_ThreadID=10;_ThreadName=main;|Application server startup complete.|#]

[#|2007-03-17T21:58:46.390+0700|INFO|sun-appserver-pe9.0|javax.enterprise.system|_ThreadID=11;_ThreadName=JavaEEServiceEngine;|JBISE6013: JavaEEServiceEngine : Java EE Service Engine started successfully.|#]

[#|2007-03-17T21:58:50.062+0700|WARNING|sun-appserver-pe9.0|javax.enterprise.system.stream.err|_ThreadID=12;_ThreadName=Thread-48;_RequestID=7b2fd62e-b999-4dbe-a116-67eb5c6a36cb;|
Exception in thread "Thread-48" |#]

[#|2007-03-17T21:58:50.062+0700|WARNING|sun-appserver-pe9.0|javax.enterprise.system.stream.err|_ThreadID=12;_ThreadName=Thread-48;_RequestID=7b2fd62e-b999-4dbe-a116-67eb5c6a36cb;|java.lang.ExceptionInInitializerError
at com.sun.jbi.httpsoapbc.OutboundMessageProcessor.<init>(OutboundMessageProcessor.java:146)
at com.sun.jbi.httpsoapbc.OutboundReceiver.run(OutboundReceiver.java:115)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:532)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:272)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:246)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:395)
at org.apache.commons.httpclient.HttpClient.<clinit>(Unknown Source)
... 3 more
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:416)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:525)
... 7 more
Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:412)
... 8 more
|#]

[#|2007-03-17T21:58:50.281+0700|INFO|sun-appserver-pe9.0|com.sun.jbi.engine.bpel.BPELSELifeCycle|_ThreadID=13;_ThreadName=com.sun.bpelse-1.0-2;|BPEL service engine started|#]