I need to double-fork vmware so it doesn't inherit the terminal ID (TTY/pts).
This is what I have so far, but I can't get access to the runtime.exec process to fork another process (which removes the terminal ID).
Runtime runtime = Runtime.getRuntime();
Process proc = runtime.exec("vmware");
Is there a way to "daemonize" in Java?
You will need to write a small C or C++ program to do the extra fork, setsid, all that stuff.
To make your life easier with this, you essentially need to disconnect the application from the shell by closing the input / output streams that are implicitly connected to the current terminal.
To make this simpler fro yourself, have a look at the akuma project. This would be a cleaner solution in plain Java without any need for C wrappers.
Here is a blog post discussing it.
You don't actually need to "double fork" in order to do this, only a single fork is necessary. Then the child should close stdin, out, error and start a new session.
来源：https://stackoverflow.com/questions/2151214/is-it-possible-to-double-fork-a-process-in-java