java.lang.NullPointerException: null

GitHub | gbehrmann | 1 year ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    null

    at edu.uchicago.monitor.MonitorChannelHandler.handleResponse()
  2. edu.uchicago.monitor
    MonitorChannelHandler.write
    1. edu.uchicago.monitor.MonitorChannelHandler.handleResponse(MonitorChannelHandler.java:183)[monitor-7.0.0.jar:na]
    2. edu.uchicago.monitor.MonitorChannelHandler.write(MonitorChannelHandler.java:74)[monitor-7.0.0.jar:na]
    2 frames
  3. Netty
    AbstractChannelHandlerContext.write
    1. io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    2. io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:691)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    3. io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:626)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    4. io.netty.handler.timeout.IdleStateHandler.write(IdleStateHandler.java:266)[netty-handler-4.0.28.Final.jar:4.0.28.Final]
    5. io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    6. io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:691)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    7. io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:626)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    7 frames
  4. org.dcache.xrootd
    ChunkedResponseWriteHandler.write
    1. org.dcache.xrootd.stream.ChunkedResponseWriteHandler.write(ChunkedResponseWriteHandler.java:89)[xrootd4j-2.1.2.jar:2.1.2]
    1 frame
  5. Netty
    AbstractChannelHandlerContext.writeAndFlush
    1. io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    2. io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:691)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    3. io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:681)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    4. io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:716)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    4 frames
  6. org.dcache.xrootd
    XrootdRequestHandler.channelRead
    1. org.dcache.xrootd.core.XrootdRequestHandler.respond(XrootdRequestHandler.java:204)[xrootd4j-2.1.2.jar:2.1.2]
    2. org.dcache.xrootd.core.XrootdRequestHandler.requestReceived(XrootdRequestHandler.java:175)[xrootd4j-2.1.2.jar:2.1.2]
    3. org.dcache.xrootd.core.XrootdRequestHandler.channelRead(XrootdRequestHandler.java:78)[xrootd4j-2.1.2.jar:2.1.2]
    3 frames
  7. Netty
    AbstractChannelHandlerContext.fireChannelRead
    1. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    2. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    3. io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    4. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    5. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    6. io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:254)[netty-handler-4.0.28.Final.jar:4.0.28.Final]
    7. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    8. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    8 frames
  8. edu.uchicago.monitor
    MonitorChannelHandler.channelRead
    1. edu.uchicago.monitor.MonitorChannelHandler.channelRead(MonitorChannelHandler.java:63)[monitor-7.0.0.jar:na]
    1 frame
  9. Netty
    SingleThreadEventExecutor$2.run
    1. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    2. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    3. io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:244)[netty-codec-4.0.28.Final.jar:4.0.28.Final]
    4. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    5. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    6. io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    7. io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    8. io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    9. io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    10. io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    11. io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    12. io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    13. io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    14. io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)[netty-transport-4.0.28.Final.jar:4.0.28.Final]
    15. io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)[netty-common-4.0.28.Final.jar:4.0.28.Final]
    15 frames
  10. org.dcache.util
    CDCThreadFactory$1.run
    1. org.dcache.util.CDCThreadFactory$1.run(CDCThreadFactory.java:53)[dcache-core-2.13.9.jar:2.13.9]
    1 frame
  11. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)[na:1.8.0_66]
    1 frame