java.lang.NullPointerException

yingsec.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

  1. serious2monkeys 21 times, last 1 week ago
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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