使用Ant在Java6中生成RMI类，在Java6中生成服务器代码

I'm currently migrating our system to Java6. But most of our RMI clients are in Java5. I want to keep the server running on Java6 so I can use those features but I cannot get the clients to upgrade to Java6. Is there a way in our ant build process to compile the server code under 6 and generate Java5 RMI jars? I'm not familiar with how to build it in ant. It currently compiles everything and then jars up the client code for distribution.I'm currently migrating our system to Java6. Bu