https://bz.apache.org/bugzilla/show_bug.cgi?id=70002

            Bug ID: 70002
           Summary: Validation with cell range only accepts a
                    single-column range
           Product: POI
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: SS Common
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

The poi version is 5.5.1 but it doesn't appear in the list of versions.
I'm having problems with data validation based on a cell range. It only seems
to work correctly when the range has a single column.

After some debugging, I suspect the bug is in
DataValidationEvaluator.getValidationValuesForConstraint, specifically these
lines:

if (eval instanceof TwoDEval) {
    TwoDEval twod = (TwoDEval) eval;
    for (int i=0; i < twod.getHeight(); i++) {
        final ValueEval cellValue = twod.getValue(i,  0);
        values.add(cellValue);
    }
}

I noticed that LibreOffice Calc works with any range, but Excel only accepts a
single column OR ROW (!)

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