java.lang.NullPointerException

Jenkins JIRA | Matthew Mitchell | 11 months ago
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  1. 0

    [JIRA] [core] (JENKINS-34887) PingFailureAnalyzer NPE

    Google Groups | 11 months ago | mmi...@microsoft.com (JIRA)
    java.lang.NullPointerException
  2. 0

    I've seen this a few times in the past: Exception in thread "Ping thread for channel hudson.remoting.Channel@63b204d9:channel" java.lang.NullPointerException at jenkins.slaves.PingFailureAnalyzer.all(PingFailureAnalyzer.java:31) at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:111) at hudson.remoting.PingThread.ping(PingThread.java:126) at hudson.remoting.PingThread.run(PingThread.java:85) Mar 29, 2016 12:05:10 PM hudson.remoting.SynchronousCommandTransport$ReaderThread run SEVERE: I/O error in channel channel java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82) at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:72) at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:103) at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:39) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) Though I haven't looked at it in a while, IIRC,\ Jenkins.getInstance() was failing and returning null.

    Jenkins JIRA | 11 months ago | Matthew Mitchell
    java.lang.NullPointerException
  3. 0

    I've seen this a few times in the past: Exception in thread "Ping thread for channel hudson.remoting.Channel@63b204d9:channel" java.lang.NullPointerException at jenkins.slaves.PingFailureAnalyzer.all(PingFailureAnalyzer.java:31) at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:111) at hudson.remoting.PingThread.ping(PingThread.java:126) at hudson.remoting.PingThread.run(PingThread.java:85) Mar 29, 2016 12:05:10 PM hudson.remoting.SynchronousCommandTransport$ReaderThread run SEVERE: I/O error in channel channel java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82) at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:72) at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:103) at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:39) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) Though I haven't looked at it in a while, IIRC,\ Jenkins.getInstance() was failing and returning null.

    Jenkins JIRA | 11 months ago | Matthew Mitchell
    java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at jenkins.slaves.PingFailureAnalyzer.all()
    2. jenkins.slaves
      PingFailureAnalyzer.all
      1. jenkins.slaves.PingFailureAnalyzer.all(PingFailureAnalyzer.java:31)
      1 frame
    3. Hudson
      ChannelPinger$1.onDead
      1. hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:111)
      1 frame
    4. Hudson :: Remoting Layer
      PingThread.run
      1. hudson.remoting.PingThread.ping(PingThread.java:126)
      2. hudson.remoting.PingThread.run(PingThread.java:85)
      2 frames