WAS 5 - Migration from Solaris to Linux

[badrinath Venkatraman]

I am migrating some Java shared components from WAS 3.5 Solaris to WAS 5 Linux Platform.
Even though Java is "write once,run anywhere", is there any potiential risk is migrating the existing binaries without recompliation in WAS 5 Linux.
Is it more safe to recompile the Java source in WAS 5 Linux to avoid any unforseen problem. Your thoughts are appreciated. What factors should I consider to come to a decision?
Thanks
badrinath

[badrinath Venkatraman]

Just to clarify that there is no native code in these shared components.
Thanks
badrinath

[Kyle Brown]

Given that you're working on two very different JVM's (JDK levels at least three levels apart between WAS 3.5 and 5.0) I would recommend recompiling your files, yes. While it probably would work fine, there may be subtle differences (optimizations) in the bytecode output of the two compilers that may result in your application running faster in the recompiled version.
Kyle