JBoss and SwiftMQ

[alex22]

Hello,

Hope this is the correct forum to post to.

Currently, i trying to use integrated swiftMQ into Jboss. I have followed the instruction published in the SwiftSoftware.com and everything seems to be worked fine.

However, when i connect to JBoss using the swiftMQ explorer, i got the following errors.

2003-05-27 18:39:07,867 INFO [org.jboss.system.server.Server] JBoss (MX MicroKernel) [3.0.4 Date:200211021607] Started in 0m:24s:703ms
2003-05-27 18:39:12,820 ERROR [STDERR] java.lang.LinkageError: Class com/swiftmq/impl/jms/standard/SwiftletContext violates loader constraints
2003-05-27 18:39:12,820 ERROR [STDERR] at java.lang.ClassLoader.defineClass0(Native Method)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.net.URLClassLoader.access$100(URLClassLoader.java:54)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.security.AccessController.doPrivileged(Native Method)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
2003-05-27 18:39:12,836 ERROR [STDERR] at org.jboss.mx.loading.UnifiedClassLoader.findClass(UnifiedClassLoader.java:239)
2003-05-27 18:39:12,836 ERROR [STDERR] at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
2003-05-27 18:39:12,851 ERROR [STDERR] at org.jboss.mx.loading.UnifiedClassLoader.loadClassLocally(UnifiedClassLoader.java:247)
2003-05-27 18:39:12,851 ERROR [STDERR] at org.jboss.mx.loading.UnifiedLoaderRepository3.loadClassFromClassLoader(UnifiedLoaderRepository3.java:208)
2003-05-27 18:39:12,851 ERROR [STDERR] at org.jboss.mx.loading.LoadMgr.beginLoadTask(LoadMgr.java:119)
2003-05-27 18:39:12,851 ERROR [STDERR] at org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:140)
2003-05-27 18:39:12,851 ERROR [STDERR] at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
2003-05-27 18:39:12,851 ERROR [STDERR] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
2003-05-27 18:39:12,851 ERROR [STDERR] at com.swiftmq.impl.jms.standard.VersionSelector.(Unknown Source)
2003-05-27 18:39:12,851 ERROR [STDERR] at com.swiftmq.impl.jms.standard.l.connected(Unknown Source)
2003-05-27 18:39:12,851 ERROR [STDERR] at com.swiftmq.impl.net.standard.scheduler.b.run(Unknown Source)
2003-05-27 18:39:12,867 ERROR [STDERR] at com.swiftmq.impl.threadpool.standard.PoolThread.run(Unknown Source)

Can anyone please help me. I have no idea what is the problem?

Thank You

[adrian.brock]

You have duplicate classes somewhere.

If you can't find them,
try upgrading to the latest version of jboss,
we've changed the classloader so that it
ignores duplicate classes.

Regards,
Adrian

[alex22]

Thanks,

But i have tried on Jboss 3.2.1 and still getting the errors.


Any further advices you could give me is appreciated.

[adrian.brock]

Didn't you get an error message about duplicate
classes?

If you use http://localhost:8080/jmx-console
and look for the loader repository mbean
in JMImplementation you should be able
to get information about where classes
are deployed.

Regards,
Adrian

[alex22]

Thanks Adrian,

Forgive my double postings.

Finally, i have figured out where the problem lies to.

Since i pretty new to SwiftMQ and Jboss itself, it took me a while to figure out SwiftMQ configuration. Once i understand the configuration file of the swiftMQ, things become easier.

Basically, what i have did is.

1) Download the JMS XA/ASF Swiftlet package.
2) Replace the JMS Kernel Swiftlet and config file with that provided by the above.
3) Start the JBoss and everything seems to work fine.