if (showOutputStream || showErrorStream) {
StringWriter sw = new StringWriter();
Writer stdout = new PrefixedWriter(stdoutIndent, new LineBufferWriter(sw));
Writer stderr = new PrefixedWriter(stderrIndent, new LineBufferWriter(sw));
slave.decodeStreams(result.getEventStream(), stdout, stderr);
if (sw.getBuffer().length() > 0) {
line.append(sw.toString());
line.append("\n");
}