java.lang.NullPointerException: null

Stack Overflow | Cary Li | 10 months ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at me.prettyprint.cassandra.connection.NodeDiscovery.discoverNodes()
    2. hector-core
      NodeAutoDiscoverService$QueryRing.run
      1. me.prettyprint.cassandra.connection.NodeDiscovery.discoverNodes(NodeDiscovery.java:79)[hector-core-1.1-4.jar:na]
      2. me.prettyprint.cassandra.connection.NodeDiscovery.doAddNodes(NodeDiscovery.java:52)[hector-core-1.1-4.jar:na]
      3. me.prettyprint.cassandra.connection.NodeAutoDiscoverService.doAddNodes(NodeAutoDiscoverService.java:45)[hector-core-1.1-4.jar:na]
      4. me.prettyprint.cassandra.connection.NodeAutoDiscoverService$QueryRing.run(NodeAutoDiscoverService.java:51)[hector-core-1.1-4.jar:na]
      4 frames
    3. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[na:1.7.0_101]
      2. java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)[na:1.7.0_101]
      3. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)[na:1.7.0_101]
      4. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[na:1.7.0_101]
      5. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[na:1.7.0_101]
      6. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[na:1.7.0_101]
      7. java.lang.Thread.run(Thread.java:745)[na:1.7.0_101]
      7 frames