java.lang.NullPointerException

GitHub | weyiming | 1 week ago
  1. 0

    GitHub comment 1#271494311

    GitHub | 1 week ago | weyiming
    java.lang.NullPointerException
  2. 0

    java.util.concurrent.ConcurrentHashMap keySet  has null values

    Oracle Community | 7 years ago | 761993
    java.lang.NullPointerException
  3. Speed up your debug routine!

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  4. 0

    java.util.concurrent.ConcurrentHashMap keySet has null values

    Oracle Community | 7 years ago | 843790
    java.lang.NullPointerException
  5. 0

    Unable to use notch 2.3 crawl script for MySQL, Mongo, or Cassandra

    mail-archive.com | 1 year ago
    org.apache.gora.util.GoraException: java.lang.NullPointerException

  1. jk 3 times, last 6 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.util.concurrent.ConcurrentHashMap.get()
  2. Java RT
    ConcurrentHashMap.containsKey
    1. java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
    2. java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:964)
    2 frames
  3. com.github.pagehelper
    PageAutoDialect.getDialect
    1. com.github.pagehelper.page.PageAutoDialect.getDialect(PageAutoDialect.java:192)
    1 frame