Controlling JComboBox size in JTable cell

Hi,

I have a JTable where each cell is huge (in purpose).
One of the columns uses DefaultCellEditor with JComboBox (so when user
edits value of this column, a combo-box is displayed).

The problem is that this combo-box is stretched and gets huge
arrow-button (with height similar to its containing cell).
How can I make the combo-box smaller, so its height will be smaller
than the height of the cell that contains it?

Thanks in advance,

Yulia

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