isIn(Collection) not matching Integers

[m37r]

For a given IntColumn, only the isIn(int...) method produces the expected results. The isIn(Collection) method inherited from NumericColumn matches actually contained numbers only when they are entered as Doubles into the query collection.

To test:

IntColumn column = IntColumn.create("c", 1, 2);
assertEquals(1, column.isIn(1).size()); // passes
assertEquals(1, column.isIn(Arrays.asList(1d)).size()); // passes
assertEquals(1, column.isIn(Arrays.asList(1)).size()); // fails

I think this is due to NumericColumn.isIn(Collection) using Collection.contains for matching against Double-converted content cells. I might even produce a fix.

[ccleva]

Hi @m37r. This issue has been fixed using your PR in the new maintenance release from the maintenance fork. See this discussion for details.