private ByteArrayOutputStream stderrContent = new ByteArrayOutputStream();
    private RedirectingOutputStream stdOutRouter = new RedirectingOutputStream(NullOutputStream.NULL_OUTPUT_STREAM);
    private RedirectingOutputStream stdErrRouter = new RedirectingOutputStream(NullOutputStream.NULL_OUTPUT_STREAM);
    private PrintStream stdOutPrintStream = new PrintStream(new TeeOutputStream(stdoutContent, stdOutRouter));