Java SE (Java Platform, Standard Edition)

Hi,

I have a question about Java application & setuid flag on unix system.

We have a java application that need to be called by many users on the unix system and write a file in a directory owned by the application admin. For security reason, that directory can not open write permission to the users that run the java application. I know if this is a non-java applicaiton, then let application admin own it and set the setuid flag should do the work. But I don't know how to set the uid for a Java application, should I set the JVM (java executable)'s setuid flag to on? will this work?

If this works, Does that mean the application admin should install his own JRE so that this setuid flag will not affect other Java users?

Thanks for any feedback.

Bill.