从jetty到stderr的神秘控制台输出?

at org.eclipse.jetty.io.nio.SelectChannelEndPoint.checkIdleTimestamp(SelectChannelEndPoint.java:231)
at org.eclipse.jetty.io.nio.SelectorManager$SelectSet$2.run(SelectorManager.java:768)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436)

对于那些有类似问题的人,我做得太多了系统错误使用模拟输出流:

public class DebugOutputStream extends OutputStream {
    private Logger s_logger = LoggerFactory.getLogger(DebugOutputStream.class);

    private final OutputStream m_realStream;
    private ByteArrayOutputStream baos = new ByteArrayOutputStream();
    private Pattern m_searchFor;

    public DebugOutputStream(OutputStream realStream, String regex) {
        m_realStream = realStream;
        m_searchFor = Pattern.compile(regex);
    }

    public void write(int b) throws IOException {
        baos.write(b);
        if (m_searchFor.matcher(baos.toString()).matches()) {
            s_logger.info("unwanted output detected", new RuntimeException());
        }
        if (b == '\n') baos.reset();
        m_realStream.write(b);
    }
}