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

Stack Overflow | Javed siddique | 4 months ago
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    null pointer exception at getGroupView while calling function getChildrenCount

    Stack Overflow | 4 months ago | Javed siddique
    java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

    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