Synchronous message / procedure call between diff version JVMs

Hi there,

Does anyone know or have experience with sending synchronous messages (pref. Object, XML or least pref. primitives) between two different versions of JVM.

I currently have an app. running on Weblogic5.1.0 under Java1.3.0 and I need to communicate synchronously with another app. running on Tomcat4.1.29 under Java 1.5

Any help much appreciated!

Antony

[392 byte] By [_ant_a] at [2007-10-2 13:10:20]