Apparent CPU loop

I've discovered a sequence of operations which seem to throw jEdit into CPU loop. To do this:

1.       Select some text in jEdit. Any text will do.

-          Note that jEdit's CPU usage remains normal (near or at zero) at this point.

2.       Switch focus to another app.

-          Note that jEdit's CPU usage still remains normal.

3.       Switch focus back to jEdit. I do this by clicking on the title bar at the top of the window so that the selected text remains selected; however, I've tested it by using Alt-Tab to shift focus to another application and Alt-Shift-Tab to move focus back to jEdit and the same behavior occurs.

-          jEdit's CPU usage immediately climbs so that it's consuming an entire core (e.g. 25% in Windows Task Manager on a quad-core CPU).

4.       Click somewhere in the jEdit window so that the selected text becomes un-selected.

-          jEdit's CPU usage drops back to zero.

This occurs under Windows 7, Oracle Java 1.8, jEdit 5.4.0 and is completely repeatable.

Thanks,
Bob

[cid:ii_14b3b7f7ec8d3ab3]
Bob Jarvis
Senior Programming Analyst
[email protected]
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