java.lang.NullPointerException

jobbole.com | 4 months ago
  1. 0

    NPE in HivePageSink

    GitHub | 1 year ago | electrum
    java.lang.NullPointerException
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  3. 0

    Java 8 Convert Map<String, String[]> to Map<String,String>

    Stack Overflow | 7 months ago | Abubakkar Rangara
    java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.util.HashMap.merge()
    2. Java RT
      ReferencePipeline.collect
      1. java.util.HashMap.merge(HashMap.java:1224)
      2. java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320)
      3. java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
      4. java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
      5. java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
      6. java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
      7. java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
      8. java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
      9. java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
      9 frames
    3. Unknown
      Test.main
      1. Test.main(Test.java:11)
      1 frame