Groups > comp.lang.java.programmer > #14841

Re: Proposed new Java feature

From	markspace <-@.>
Newsgroups	comp.lang.java.programmer
Subject	Re: Proposed new Java feature
Date	2012-05-27 15:20 -0700
Organization	A noiseless patient Spider
Message-ID	<jpu9aj$t3p$1@dont-email.me> (permalink)
References	(3 earlier) <8Euwr.47425$On2.20024@newsfe16.iad> <jpttrh$nqe$1@dont-email.me> <jptvdf$1s5$1@dont-email.me> <jpu11t$c79$1@dont-email.me> <jpu7m3$k7e$1@dont-email.me>

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On 5/27/2012 2:51 PM, Eric Sosman wrote:
> I understood it fine the first time around, thanks. If you
> think of anything new to add, pray do so.

This is uncharitable.  In particular because I think his point went 
whooshing over your head, and you didn't understand it at all.

He's saying the thread is done.  Kaput.  Any Sioux Unusual class using 
the thread will loose its thread locals, because at this point it 
expects the thread to die.

So instead of allowing the thread to die, we re-use it.  But what would 
Sioux Unusual do?  How would it expect this thread to be matched up with 
the same object ever again?  There's no guarantee of that.  Thread 
assignment from the executor is random.  Worse, another Sioux Unusual 
object could see the thread local from some different object, and assume 
it's been assigned from its own invocation, when it clearly hasn't.

Really, the problem is that Sioux Unusual is broken for this 
application, and shouldn't be used when threads are gong to be re-used 
and randomly reassigned.  But that's not what he's talking about.  He's 
talking about the case where he doesn't need the thread locals to 
persist, but he does need to use them, and to release them too.

The posts by myself and Tom should indicate that Mike is not alone in 
this need.  He's got a real problem.  That you insist that his 
requirements should be obviated because you or someone else might have 
some different requirement... well that just doesn't make sense.

Thread

Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-26 16:11 -0700
  Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-27 13:32 +0200
    Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-27 11:14 -0700
      Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-28 12:13 +0200
      Re: Proposed new Java feature v_borchert@despammed.com (Volker Borchert) - 2012-06-04 20:16 +0000
  Re: Proposed new Java feature markspace <-@.> - 2012-05-27 09:28 -0700
    Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-27 11:00 -0700
      Re: Proposed new Java feature Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-27 11:46 -0700
        Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-27 12:04 -0700
          Re: Proposed new Java feature Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-05-27 15:30 -0400
            Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-27 12:59 -0700
              Re: Proposed new Java feature Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-05-27 17:51 -0400
                Re: Proposed new Java feature markspace <-@.> - 2012-05-27 15:20 -0700
                Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-28 12:13 +0200
                Re: Proposed new Java feature markspace <-@.> - 2012-05-28 08:28 -0700
                Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-28 19:29 +0200
                Re: Proposed new Java feature markspace <-@.> - 2012-05-28 12:16 -0700
                Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-28 22:58 +0200
                Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-28 21:40 -0700
                Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-29 22:52 +0200
                Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-29 18:53 -0700
                Re: Proposed new Java feature Tom Anderson <twic@urchin.earth.li> - 2012-05-27 23:27 +0100
                Re: Proposed new Java feature Robert Klemme <shortcutter@googlemail.com> - 2012-05-28 12:22 +0200
                Re: Proposed new Java feature "Mike Schilling" <mscottschilling@hotmail.com> - 2012-05-27 21:43 -0700
                Re: Proposed new Java feature Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-05-29 14:32 +0000
  Re: Proposed new Java feature Tom Anderson <twic@urchin.earth.li> - 2012-05-27 18:43 +0100
  Re: Proposed new Java feature Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2012-06-02 12:41 -0700
    Re: Proposed new Java feature markspace <-@.> - 2012-06-02 15:55 -0700

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