}

  /** Identifies all waitForXxx methods, which must be called while occupying the monitor. */
  private static boolean isWaitFor(Method method) {
    return method.getName().startsWith("waitFor");
  }

  /** Determines whether the given method takes a Guard as its first parameter. */
  private static boolean isGuarded(Method method) {
    Class<?>[] parameterTypes = method.getParameterTypes();

  }

  /** Identifies all waitForXxx methods, which must be called while occupying the monitor. */
  private static boolean isWaitFor(Method method) {
    return method.getName().startsWith("waitFor");
  }

  /** Determines whether the given method takes a Guard as its first parameter. */
  private static boolean isGuarded(Method method) {
    Class<?>[] parameterTypes = method.getParameterTypes();

            } catch (final InterruptedException e) {
                logger.warn("Interrupted to wait a process.", e);
            }
            try {
                process.destroyForcibly().waitFor(processDestroyTimeout, TimeUnit.SECONDS);
                return process.exitValue();
            } catch (final Exception e) {
                logger.error("Could not destroy a process correctly.", e);
            }

        private final int exitValue;

        public TestProcess(int exitValue) {
            this.exitValue = exitValue;
        }

        @Override
        public int waitFor() throws InterruptedException {
            return exitValue;
        }

        @Override
        public int exitValue() {
            return exitValue;
        }

        @Override

        private final int exitValue;

        public TestProcess(int exitValue) {
            this.exitValue = exitValue;
        }

        @Override
        public int waitFor() throws InterruptedException {
            return exitValue;
        }

        @Override
        public int exitValue() {
            return exitValue;
        }

        @Override

        private final int exitValue;

        public MockProcess(int exitValue) {
            this.exitValue = exitValue;
        }

        @Override
        public int waitFor() {
            return exitValue;
        }

        @Override
        public int exitValue() {
            return exitValue;
        }

        @Override
        public void destroy() {

                    Thread err = new Thread(new StreamGobbler(process.getErrorStream(), shellContext.logger::error));
                    out.start();
                    err.start();
                    int exitCode = process.waitFor();
                    out.join();
                    err.join();
                    if (exitCode != 0) {
                        shellContext.logger.error("Shell command exited with code " + exitCode);

            });

            final InputStreamThread it = jobProcess.getInputStreamThread();
            it.start();

            final Process currentProcess = jobProcess.getProcess();
            currentProcess.waitFor();
            it.join(5000);

            final int exitValue = currentProcess.exitValue();

            if (logger.isInfoEnabled()) {

            });

            final InputStreamThread it = jobProcess.getInputStreamThread();
            it.start();

            final Process currentProcess = jobProcess.getProcess();
            currentProcess.waitFor();
            it.join(5000);

            final int exitValue = currentProcess.exitValue();

            if (logger.isInfoEnabled()) {

            ByteArrayOutputStream stdout = connectStream(process.getInputStream(), latch);
            ByteArrayOutputStream stderr = connectStream(process.getErrorStream(), latch);

            process.waitFor(1, TimeUnit.MINUTES);
            latch.await(1, TimeUnit.MINUTES);
            return new ExecResult(args, process.exitValue(), stdout.toString(UTF_8), stderr.toString(UTF_8));
        } catch (Exception e) {