@Test(expectedExceptions = IllegalArgumentException.class)
public void testAddColumnDifferentCase() {

    ColumnStore<Node> store = new ColumnStore(Node.class, false);
    store.addColumn(new ColumnImpl("A", Integer.class, null, null, Origin.DATA, false, false));
    store.addColumn(new ColumnImpl("a", Integer.class, null, null, Origin.DATA, false, false));
}