从jetty到stderr的神秘控制台输出？

当运行我的嵌入式jetty web应用程序启动器时，我看到以下输出到stderr。在将构建迁移到maven-2之后，我才开始看到这一点。以前有人见过这个吗

IDLE SCEP@988057 [d=false,io=1,w=true,rb=false,wb=false],NOT_HANDSHAKING, in/out=0/0 Status = OK HandshakeStatus = NOT_HANDSHAKING
bytesConsumed = 5469 bytesProduced = 5509

---

它偶尔会重复，看起来是随机的。

这似乎来自jetty NIO支持——jetty似乎认为在关闭空闲连接时登录到stderr是合适的

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)

对于存在类似问题的用户，我使用模拟输出流覆盖System.err：

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);
    }
}