RE: [Mc4j-development] mc4j and mx4j in Linux

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

MC4J only works with MX4J 1.1.1 in the current release (beta 3). From =
the information below, it appears that you are trying to connect it to =
an adaptor running on the 2.0 beta 1 version of MX4J. The server and the =
client must be running the same versions of of MX4J for the RMI =
connection to work.=20

Very soon, I'll be releasing a new beta with support for JSR 160 style =
connections. The support is in CVS, but there are a few things to clean =
up first. If you are trying to connect to MX4J 2.0 it would probably be =
easiest to wait for the next MC4J release and use this type of =
connection. I'm planning for the release to happen Friday.

Greg Hinkle

-----Original Message-----
From: mc4...@li... =
[mailto:mc4...@li...] On Behalf Of =
CRISTINA DIAZ DIAZ
Sent: Wednesday, February 11, 2004 5:52 AM
To: mc4...@li...
Subject: [Mc4j-development] mc4j and mx4j in Linux

Hello all!

I am quite new to JMX and I am trying to install
MC4J using MX4J.

I am having some problems that I do not know hoe to
resolve, that is why I am writing to this list for help.

I have installed MC4JBeta 1.2 Beta 3 and MX4J 1.1.1
over Sun JDK 1.4.2 on Debian Linux.

I have put mx4j libraries into jre/lib/ext and I
have run the console.

When I try to create an MX4J connection I receive
this exeception:

javax.naming.CommunicationException [Root exception
is java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:=20
	java.lang.ClassNotFoundException:
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub]
	at
com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:92)=

	at
com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:98)=

	at
javax.naming.InitialContext.lookup(InitialContext.java:347)
	at
mx4j.connector.rmi.RMIConnector.connect(RMIConnector.java:110)
	at
org.mc4j.console.connection.Mx4jConnectionNode.connect(Mx4jConnectionNode=
.java:73)
	at
org.mc4j.console.connection.ReconnectAction.performAction(ReconnectAction=
.java:40)
	at
org.openide.util.actions.NodeAction$3.run(NodeAction.java:440)
	at
org.openide.util.actions.CallableSystemAction$2.run(CallableSystemAction.=
java:121)
	at org.openide.util.Task.run(Task.java:136)
	at
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)
	at
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:677=
)
Caused by: java.rmi.UnmarshalException: error
unmarshalling return; nested exception is:=20
	java.lang.ClassNotFoundException:
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub
	at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown
Source)
	at
com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:88)=

	... 10 more
Caused by: java.lang.ClassNotFoundException:
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub
	at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
	at java.security.AccessController.doPrivileged(Native
Method)
	at
java.net.URLClassLoader.findClass(URLClassLoader.java:187)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
	at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:219)
	at
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:430)
	at
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
	at
java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:631)
	at
java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:257)
	at
sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:20=
0)
	at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1513)
	at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626)=

	at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
	at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
[catch] ... 12 more
=3D=3D>
java.rmi.UnmarshalException: error unmarshalling
return; nested exception is:=20
	java.lang.ClassNotFoundException:
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub
	at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown
Source)
	at
com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:88)=

	at
com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:98)=

	at
javax.naming.InitialContext.lookup(InitialContext.java:347)
	at
mx4j.connector.rmi.RMIConnector.connect(RMIConnector.java:110)
	at
org.mc4j.console.connection.Mx4jConnectionNode.connect(Mx4jConnectionNode=
.java:73)
	at
org.mc4j.console.connection.ReconnectAction.performAction(ReconnectAction=
.java:40)
	at
org.openide.util.actions.NodeAction$3.run(NodeAction.java:440)
	at
org.openide.util.actions.CallableSystemAction$2.run(CallableSystemAction.=
java:121)
	at org.openide.util.Task.run(Task.java:136)
	at
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)
	at
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:677=
)
Caused by: java.lang.ClassNotFoundException:
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub
	at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
	at java.security.AccessController.doPrivileged(Native
Method)
	at
java.net.URLClassLoader.findClass(URLClassLoader.java:187)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
	at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:219)
	at
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:430)
	at
sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
	at
java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:631)
	at
java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:257)
	at
sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:20=
0)
	at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1513)
	at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626)=

	at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
	at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
[catch] ... 12 more

I have look into MX4J 1.1.1 libraries
(mx4j-tools.jar and mx4j-jmx.jar) but I did not
found the class
mx4j.tools.adaptor.rmi.RMIAdaptor_Stub. Instead
there is a class called
mx4j.adaptor.rmi.RMIAdaptor_Stub. So I suppose that
is why it throws that exception.

I have then download mx4j 2.0 Beta 1, but that class
did not appear in any of its libraries. Instead, it
appears in the sources. So I have downloaded and
recompile mx4j 2.0 Beta 2 src and I have generate
the libraries.

I have put the libraries again in the jre/lib/ext
and I have launch the console again. I try to create
the connection again but now I receive this exception:

ava.lang.ClassCastException
	at
mx4j.connector.rmi.jrmp.JRMPConnector.narrow(JRMPConnector.java:28)
	at
mx4j.connector.rmi.RMIConnector.connect(RMIConnector.java:112)
	at
org.mc4j.console.connection.Mx4jConnectionNode.connect(Mx4jConnectionNode=
.java:73)
	at
org.mc4j.console.connection.ReconnectAction.performAction(ReconnectAction=
.java:40)
	at
org.openide.util.actions.NodeAction$3.run(NodeAction.java:440)
	at
org.openide.util.actions.CallableSystemAction$2.run(CallableSystemAction.=
java:121)
	at org.openide.util.Task.run(Task.java:136)
	at
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)
[catch] at
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:677=
)

=20
So do you know which version of MX4J and which one
of MC4J to make it works? Can you pass that versions
to me? Is there any document explaining how to
configure this? Can anybody help me?

I am not register in the list, so please answer with
copy to me.

Thank you very much in advance

Cristina D=EDaz

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