Re: stop() boundaries

From:
Patricia Shanahan <pats@acm.org>
Newsgroups:
comp.lang.java.programmer
Date:
Sat, 25 Dec 2010 10:59:19 -0800
Message-ID:
<GdGdnSBfbqaSoovQnZ2dnUVZ_uOdnZ2d@earthlink.com>
Jan Burse wrote:

Dear All

Suppose I have the following code:

   A; /* line 1 */
   try { /* line 2 */
      B; /* line 3 */
   } finally {
      C;
   }

Now I run this in a thread and arbitrarily
call the deprecated (sic!) stop() once.

Would it be possible that the stop will
throw a thread death error on line 2,
thus after A has been executed and before
the try block is entered?


You have to assume that the exception can be thrown anywhere, because it
is documented to be thrown "almost anywhere", and, as far as I know,
there is no documentation guaranteeing that it won't happen in any
particular place. In your case, I see nothing special about statement A
that would prevent a ThreadDeath before, during, or immediately after A.

See
http://download.oracle.com/javase/6/docs/technotes/guides/concurrency/threadPrimitiveDeprecation.html

"A thread can throw a ThreadDeath exception almost anywhere. All
synchronized methods and blocks would have to be studied in great
detail, with this in mind."

Patricia

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