The problem is binding to ports under 1024 with a non-root user.
I've tried authbind, but it does not support multithreading, and our App spawn multiple threads, and some failed to bind ports.
I've tried setting capabilities on the Java binary + adding it's dependency libs to the ld config - but then Java just gets stuck in a loop (works with Java 7 - but we cannot upgrade to 7...)
I cannot use iptables routing - not a solution authorized by my boss
Any other ideas to do this?