java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

Stack Overflow | Javed siddique | 3 months ago
  1. 0

    null pointer exception at getGroupView while calling function getChildrenCount

    Stack Overflow | 3 months ago | Javed siddique
    java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
  2. 0
    samebug tip
    Initialize the variable before calling a method on it.
  3. 0

    空指针异常

    GitHub | 9 months ago | JasonHezz
    java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=100, result=1004, data=Intent { }} to activity {com.lzy.imagepickerdemo/com.lzy.imagepickerdemo.ImagePickerActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
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  5. 0

    抛出大量Permission Denied的日志

    GitHub | 6 months ago | aviraxp
    java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

      at beeonline.com.chromatography.ExpandableListAdapter.getChildrenCount()
    2. beeonline.com.chromatography
      ExpandableListAdapter.getGroupView
      1. beeonline.com.chromatography.ExpandableListAdapter.getChildrenCount(ExpandableListAdapter.java:65)
      2. beeonline.com.chromatography.ExpandableListAdapter.getGroupView(ExpandableListAdapter.java:113)
      2 frames