How can I set the umask from within java?
You can’t fiddle with the umask directly, since Java is an abstraction and the umask is POSIX-implementation specific. But you have the following API: File f; f.setExecutable(true); f.setReadable(false); f.setWritable(true); There are some more APIs available, check the docs. If you must have direct access to the umask, either do it via JNI and the chmod() … Read more