I need to invoke a process using process builder as another user....How can I do it?

Question

I have to execute some process as a unprivileged user from my server.Thats my doubt

Answer 1

Depends on the operating system you you will need to invoke sudo (Linux, *NIX and Mac) or runas (windows)

Edit

Another option use JNA - it basically compiles standard libraries to Java interfaces. I haven't used it, but if you are looking at using OS calls, you may want to explore this.

Answer 2

In java there's only one way to invoke a process, that is by using Runtime.getRuntime().exec(..). For anything else(privelege, permission, etc...) you may need to use JNI.