issues after porting a mac app from Java 6 to 7u9 (original) (raw)
Rick Hillegas rick.hillegas at oracle.com
Mon Nov 12 06:54:11 PST 2012
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I have ported an app from Java 6 to 7u9. I am seeing the following behaviors. One behavior is specific. The other is vague and I will need to run the app for a while longer before I come up with a theory about where the problem may be:
Drag-and-drop on a JTable behaves differently. On Java 6, when I drag a cell between locations on a JTable, the following happens:
- A ghost rectangle appears as the drag starts.
- I drag the ghost rectangle onto the target cell, positioning it so
that it lines up with the target border, and then release the mouse.
- My drag-and-drop handler then processes events correctly.
Now on Java 7 the following happens:
- The ghost rectangle appears as before.
- But I have to position it differently. Now I have to just barely overlap the bottom boundary of the ghost rectangle with the top boundary of the target cell in order to generate events for my drag-and-drop handler.
Is this a known difference in behavior?
- The other problem is probably too vague, but here goes: I seem to have memory management issues. After running the app for a while, it starts freezing up and I watch the beachball spin. Eventually the app becomes unusable and I have to re-start it. Is it expected that I will need to give an app more memory in order to run it on Java 7?
Thanks, -Rick
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