Writer err = cerr.getWriter();
if (out instanceof FanoutWriter) {
((FanoutWriter) out).addStream(writer);
((FanoutWriter) err).addStream(writer);
} else {
cout = new CommandOutput(new FanoutWriter(true, out, writer));
outPW = cout.getPrintWriter();
cerr = new CommandOutput(new FanoutWriter(true, err, writer));
errPW = cerr.getPrintWriter();
}
errPW.println("Testing");
}