There is a JMX problem in LOG4J 1.2.8, the class org.apache.log4j.Level is not 
serializable. In a simple JMX request 
I got an unserializable exception. Here is a code snippet of an example code.


Content of getContent method:

    import weblogic.management.RemoteMBeanServer;

    import javax.management.Attribute;
    import javax.management.MBeanAttributeInfo;
    import javax.management.MBeanInfo;
    import javax.management.ObjectName;
   
    [...]

    private MBeanAttributeInfo attrInfo = null;
    private RemoteMBeanServer homeServer = null;
     
     [...]

        try {
            value = homeServer.getAttribute(new ObjectName(domain + ":" +
                        mbeanName), attrInfo.getName());
        } catch (Exception e) {
            e.printStackTrace();
        }
        
where homeServer is a reference to a RemoteMBeanServer instance by Weblogic, 
domain is "log4j", mbeanName is 
"appender=MUSYK1" (defined in log4j.properties file) and attrInfo.getName() 
is "encoding".


weblogic.rmi.extensions.RemoteRuntimeException: Unexpected Exception - with 
nested exception:
[java.rmi.MarshalException: error marshalling return; nested exception is: 
	java.io.NotSerializableException: org.apache.log4j.Level]
	at 
weblogic.management.internal.RemoteMBeanServerImpl_812_WLStub.getAttribute
(Unknown Source)
	at tui.musyk.weblogic.jmx.gui.model.MBeanAttributeProxy.getContent
(MBeanAttributeProxy.java:61)
[...]