Drag and Drop with JTable on Mac OS X

Question

i have a problem with DnD and JTable on macs. If you start the following program and click (fast) around in the table, sometimes selecting something, sometimes do DnD after

Answer 1

When dropping a dragged row anywhere else on the table, I (sometimes) get the errors shown below back as far as Mac OS X 10.5.8. The target selection rectangle remains on the screen, and no further drag operations are possible. I'm not sure why, but I suppose a cell is not recognized as a suitable destination for a row.

2012-10-14 14:14:23.912 java[44061:10b] *** -[NSWindowViewAWT draggingEnded:]:
    unrecognized selector sent to instance 0x1001e7140
2012-10-14 14:14:23.913 java[44061:10b] *** -[NSWindowViewAWT draggingEnded:]:
    unrecognized selector sent to instance 0x1001e7140

Dropping the dragged row on another application works as expected.

As an aside, auto-boxing can simplify the initialization code:

Object[][] data = {
    {"Mary", "Campione", "Snowboarding", 5, false},
    {"Alison", "Huml", "Rowing", 3, true},
    {"Kathy", "Walrath", "Chasing toddlers", 2, false},
    {"Mark", "Andrews", "Speed reading", 20, true},
    {"Angela", "Lih", "Teaching high school", 4, false}
};

Addendum: This image shows the drag in progress; after triggering the anomaly, the gray rectangle remains immobile when the frame is dragged.

As a workaround, there is a solution to disable the grey rectangle altogether.