Hi,
Using Tomcat 5.5.27 with JDK 1.5.0_11, I'm trying to retrieve the attribute
"manager" from the MBean
"Catalina:J2EEApplication=none,J2EEServer=none,j2eeType=WebModule,name=//localhost/".
But I'm getting thre following error.
Exception in thread "main" java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException:
org.apache.catalina.session.StandardManager
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:157)
at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl_Stub.getAttribute(Unknown
Source)
at
javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getAttribute(RMIConnector.java:857)
at test.jmx.JmxTest.main(JmxTest.java:37)
Caused by: java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException:
org.apache.catalina.session.StandardManager
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:290)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:139)
... 4 more
Caused by: java.io.NotSerializableException:
org.apache.catalina.session.StandardManager
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at sun.rmi.server.UnicastRef.marshalValue(UnicastRef.java:258)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:304)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java: 149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)
I attach to this mail a sample that able to reproduce this. In fact I would
like to know how to retrieve this Class, I hope that this class implement
Serializable otherwise I don't know why StandardManager is exposed as Jmx
Attribute.
Additionnaly, when I try to retrieve an attribute like "managedResource"
from the MBean "Catalina:host=localhost,type=Host". I got the following
execption
Exception in thread "main" java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: org.apache.catalina.util.LifecycleSupport
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:157)
at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl_Stub.getAttribute(Unknown
Source)
at
javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getAttribute(RMIConnector.java:857)
at test.jmx.JmxTest.main(JmxTest.java:36)
see attached file for complete stacktrace.
Regards,
Emmanuel
/**
*
*/
package test.jmx;
import java.util.Hashtable;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import org.apache.catalina.Manager;
/**
* @author xbi0bnv
*
*/
public class JmxTest {
/**
* @param args
*/
public static void main(String[] args) throws Exception {
JMXServiceURL serviceURL = new
JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:21205/jmxrmi");
Hashtable h = new Hashtable();
h.put(JMXConnector.CREDENTIALS, new String[] { "controlRole", "tomcat"
});
JMXConnector connector = JMXConnectorFactory.connect(serviceURL, h);
MBeanServerConnection connection = connector.getMBeanServerConnection();
ObjectName oName = new
ObjectName("Catalina:J2EEApplication=none,J2EEServer=none,j2eeType=WebModule,name=//localhost/");
Manager manager = (Manager) connection.getAttribute(oName, "manager");
System.out.println(manager.getInfo());
}
}
Exception in thread "main" java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: org.apache.catalina.util.LifecycleSupport
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:157)
at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
at
javax.management.remote.rmi.RMIConnectionImpl_Stub.getAttribute(Unknown Source)
at
javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getAttribute(RMIConnector.java:857)
at test.jmx.JmxTest.main(JmxTest.java:36)
Caused by: java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: org.apache.catalina.util.LifecycleSupport
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at java.util.HashMap.readObject(HashMap.java:1067)
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
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at java.util.HashMap.readObject(HashMap.java:1067)
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
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1908)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:290)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:139)
... 4 more
Caused by: java.io.NotSerializableException:
org.apache.catalina.util.LifecycleSupport
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at java.util.HashMap.writeObject(HashMap.java:1039)
at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at java.util.HashMap.writeObject(HashMap.java:1039)
at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at sun.rmi.server.UnicastRef.marshalValue(UnicastRef.java:258)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:304)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707)
at java.lang.Thread.run(Thread.java:595)
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