How to get a list of current open windows/process with Java?

Question

Does any one know how do I get the current open windows or process of a local machine using Java?

What I\'m trying to do is: list the current open task, windows or

Answer 1

Finally, with Java 9+ it is possible with ProcessHandle:

public static void main(String[] args) {
    ProcessHandle.allProcesses()
            .forEach(process -> System.out.println(processDetails(process)));
}

private static String processDetails(ProcessHandle process) {
    return String.format("%8d %8s %10s %26s %-40s",
            process.pid(),
            text(process.parent().map(ProcessHandle::pid)),
            text(process.info().user()),
            text(process.info().startInstant()),
            text(process.info().commandLine()));
}

private static String text(Optional optional) {
    return optional.map(Object::toString).orElse("-");
}

Output:

    1        -       root   2017-11-19T18:01:13.100Z /sbin/init
  ...
  639     1325   www-data   2018-12-04T06:35:58.680Z /usr/sbin/apache2 -k start
  ...
23082    11054    huguesm   2018-12-04T10:24:22.100Z /.../java ProcessListDemo