public boolean isRunning() {
      if (process == null) {
        return false;
      }
      try {
        process.exitValue();
        return false;
      } catch (IllegalThreadStateException e) {
        // if this is thrown, we're still running
      }
      return true;
    }
Is our shell still running ?

@return Shell running ?
imitate/src/main/java/com/engineer/imitate/shell/Shell.java