java.lang.NullPointerException: null

GitHub | martbhell | 2 years ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    null

    at edu.uchicago.monitor.MonitorChannelHandler.handleDownstream()
  2. edu.uchicago.monitor
    MonitorChannelHandler.handleDownstream
    1. edu.uchicago.monitor.MonitorChannelHandler.handleDownstream(MonitorChannelHandler.java:259)[monitor-5.0.9.jar:na]
    1 frame
  3. Netty
    DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream
    1. org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:784)[netty-3.9.4.Final.jar:na]
    2 frames
  4. org.dcache.xrootd
    ChunkedResponseWriteHandler.handleDownstream
    1. org.dcache.xrootd.stream.ChunkedResponseWriteHandler.handleDownstream(ChunkedResponseWriteHandler.java:106)[xrootd4j-1.3.7.jar:1.3.7]
    1 frame
  5. Netty
    AbstractChannel.write
    1. org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:784)[netty-3.9.4.Final.jar:na]
    3. org.jboss.netty.channel.SimpleChannelHandler.writeRequested(SimpleChannelHandler.java:292)[netty-3.9.4.Final.jar:na]
    4. org.jboss.netty.channel.SimpleChannelHandler.handleDownstream(SimpleChannelHandler.java:254)[netty-3.9.4.Final.jar:na]
    5. org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591)[netty-3.9.4.Final.jar:na]
    6. org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:582)[netty-3.9.4.Final.jar:na]
    7. org.jboss.netty.channel.Channels.write(Channels.java:704)[netty-3.9.4.Final.jar:na]
    8. org.jboss.netty.channel.Channels.write(Channels.java:671)[netty-3.9.4.Final.jar:na]
    9. org.jboss.netty.channel.AbstractChannel.write(AbstractChannel.java:248)[netty-3.9.4.Final.jar:na]
    9 frames
  6. org.dcache.xrootd
    XrootdRequestHandler.messageReceived
    1. org.dcache.xrootd.core.XrootdRequestHandler.respond(XrootdRequestHandler.java:201)[xrootd4j-1.3.7.jar:1.3.7]
    2. org.dcache.xrootd.core.XrootdRequestHandler.requestReceived(XrootdRequestHandler.java:174)[xrootd4j-1.3.7.jar:1.3.7]
    3. org.dcache.xrootd.core.XrootdRequestHandler.messageReceived(XrootdRequestHandler.java:77)[xrootd4j-1.3.7.jar:1.3.7]
    3 frames
  7. Netty
    DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream
    1. org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStateAwareChannelHandler.java:36)[netty-3.9.4.Final.jar:na]
    3. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    4. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    4 frames
  8. org.dcache.xrootd
    ChunkedResponseWriteHandler.handleUpstream
    1. org.dcache.xrootd.stream.ChunkedResponseWriteHandler.handleUpstream(ChunkedResponseWriteHandler.java:139)[xrootd4j-1.3.7.jar:1.3.7]
    1 frame
  9. Netty
    SimpleChannelHandler.handleUpstream
    1. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    3. org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:294)[netty-3.9.4.Final.jar:na]
    4. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)[netty-3.9.4.Final.jar:na]
    5. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    6. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    7. org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142)[netty-3.9.4.Final.jar:na]
    8. org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)[netty-3.9.4.Final.jar:na]
    8 frames
  10. edu.uchicago.monitor
    MonitorChannelHandler.handleUpstream
    1. edu.uchicago.monitor.MonitorChannelHandler.handleUpstream(MonitorChannelHandler.java:207)[monitor-5.0.9.jar:na]
    1 frame
  11. Netty
    SimpleChannelUpstreamHandler.messageReceived
    1. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    3. org.jboss.netty.channel.SimpleChannelUpstreamHandler.messageReceived(SimpleChannelUpstreamHandler.java:124)[netty-3.9.4.Final.jar:na]
    3 frames
  12. org.dcache.xrootd
    XrootdHandshakeHandler.messageReceived
    1. org.dcache.xrootd.core.XrootdHandshakeHandler.messageReceived(XrootdHandshakeHandler.java:102)[xrootd4j-1.3.7.jar:1.3.7]
    1 frame
  13. Netty
    OrderedMemoryAwareThreadPoolExecutor$ChildExecutor.run
    1. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)[netty-3.9.4.Final.jar:na]
    2. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    3. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    4. org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)[netty-3.9.4.Final.jar:na]
    5. org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)[netty-3.9.4.Final.jar:na]
    6. org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)[netty-3.9.4.Final.jar:na]
    7. org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)[netty-3.9.4.Final.jar:na]
    8. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)[netty-3.9.4.Final.jar:na]
    9. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    10. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    11. org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142)[netty-3.9.4.Final.jar:na]
    12. org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)[netty-3.9.4.Final.jar:na]
    13. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)[netty-3.9.4.Final.jar:na]
    14. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)[netty-3.9.4.Final.jar:na]
    15. org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43)[netty-3.9.4.Final.jar:na]
    16. org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67)[netty-3.9.4.Final.jar:na]
    17. org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor$ChildExecutor.run(OrderedMemoryAwareThreadPoolExecutor.java:314)[netty-3.9.4.Final.jar:na]
    17 frames
  14. Java RT
    ThreadPoolExecutor$Worker.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[na:1.7.0_79]
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[na:1.7.0_79]
    2 frames
  15. org.dcache.util
    CDCThreadFactory$1.run
    1. org.dcache.util.CDCThreadFactory$1.run(CDCThreadFactory.java:53)[dcache-core-2.10.34.jar:2.10.34]
    1 frame
  16. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)[na:1.7.0_79]
    1 frame