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JTextArea becomes non-editable in a JApplet

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Hi folks,

apparently, the Oracle Java-VM seems to have a bug in its JApplet or 
JTextArea implementation, at least in the Linux implementation for the 
firefox plugin.

The problem is that, under circumstances described below, JTextArea 
components in an JApplet become un-editable, and even clicking into them 
does not regain focus. This renders such input components rather useless 
and causes a lot of confusion at the user.

The problem appears (at least) when a JApplet opens a ProgressMonitor; 
at this time, the JTextArea (rightfully) looses the focus. When the 
progress monitor is, however, closed afterwards, the JTextArea does not 
get the input focus again. In fact, even clicking into it, or any other 
JTextArea on the same JApplet does not improve anything. While the 
buttons in the JApplet just work normally, the text input components do 
not react at all.

To get the focus again, the user has first to click onto any other 
window on the screen, or into the URL field of the browser, and *then* 
click again into the JTextArea - this returns focus to it.

I tried a couple of work-arounds to regain the focus, including removing 
the component and re-creating it, actively requesting the focus and 
others; nothing helped. The best I could get was a cursor drawn in the 
field, but the cursor did not react on keyboard input.

Appears in java 1.6.0_24, AMD64 architecture, firefox plug-in.

Is this a known problem? Are there any known workarounds?

Thanks,
	Thomas

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JTextArea becomes non-editable in a JApplet Thomas Richter <thor@math.tu-berlin.de> - 2011-06-06 17:45 +0200
  Re: JTextArea becomes non-editable in a JApplet Roedy Green <see_website@mindprod.com.invalid> - 2011-06-07 21:00 -0700

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