IllegalArgumentException: argument type mismatch

[ruiruirui]

If I use Servlet to invoke the function of my mbean, and the function has a user-defined-class parameter, not int,string or else. It will throw a IllegalArgumentException: argument type mismatch. But from other way it runs correctly.

Anyone who met this problem before?

Thanks!

Example code:
RMIAdaptor mBeanRMIAdaptor = (RMIAdaptor) ic.lookup("jmx/invoker/RMIAdaptor");
ObjectName TestObjectName = new ObjectName("......");
String[] sigs = { "test.TestObj" };
Object[] params = { testObj };
String result = (String) mBeanRMIAdaptor.invoke(TestObjectName, "testMethod", params, sigs);

If you change the parameter to String , Int or other java type, it runs correctly.
Or if you invoke it from a java application, it runs correctly too.

[ruiruirui]

Can anyone help me ????

[jaikiran]

Please post the entire exception stacktrace, the MBean code and the actual code you are using to invoke the MBean.

While posting the logs or code or xml content, remember to wrap it in a code block using the Code button in the message editor window and please hit the Preview button to make sure your post is correctly formatted