Long texts in JTable cells

My application displays a table having several columns in a JTable.
(the GUI component is bound to a view iterator in Oracle ADF, if
anyone is familiar with that framework.) The problem:

One of the columns contains long text, including line breaks, which
is shown as a very long single line in the table cell. How can I
improve on this? (I guess I want something like an editable text-area,
except it should be part of the table).

Thanks for a hint, Sebastian