java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference

GitHub | fesiong | 1 year ago
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    java.lang.NullPointerException:

    GitHub | 1 year ago | fesiong
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference

  1. jk 3 times, last 8 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference

    at java.util.concurrent.ConcurrentHashMap.get()
  2. Java RT
    ConcurrentHashMap.containsKey
    1. java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:746)
    2. java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:774)
    2 frames
  3. cn.aigestudio.downloader
    DLManager.dlCancel
    1. cn.aigestudio.downloader.bizs.DLManager.dlStop(DLManager.java:267)
    2. cn.aigestudio.downloader.bizs.DLManager.dlCancel(DLManager.java:286)
    2 frames
  4. com.seowhy.video
    UserCacheApapter$CacheViewHolder$$ViewBinder$2.doClick
    1. com.seowhy.video.util.CacheUtils.deleteLessonCache(CacheUtils.java:299)
    2. com.seowhy.video.util.CacheUtils.deleteCourseCache(CacheUtils.java:397)
    3. com.seowhy.video.adapter.UserCacheApapter$CacheViewHolder.onBtnDeteleClick(UserCacheApapter.java:110)
    4. com.seowhy.video.adapter.UserCacheApapter$CacheViewHolder$$ViewBinder$2.doClick(UserCacheApapter$CacheViewHolder$$ViewBinder.java:34)
    4 frames