dxbjavid commented on PR #323:
URL: https://github.com/apache/commons-math/pull/323#issuecomment-4592429820

   Added AbstractUnivariateStatisticTest.testSetDataOverflow. It calls 
setData(new double[10], 1, Integer.MAX_VALUE) on a minimal concrete subclass; 
before the fix the int sum wraps negative so the bounds check is skipped and 
arraycopy throws a raw AIOOBE, and it also asserts getArgument() is the correct 
long value.


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