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Groups > comp.lang.java.programmer > #14886

Re: Proposed new Java feature

From Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at>
Newsgroups comp.lang.java.programmer
Subject Re: Proposed new Java feature
Date 2012-05-29 14:32 +0000
Organization A noiseless patient Spider
Message-ID <slrnjs9nf6.u9l.avl@gamma.logic.tuwien.ac.at> (permalink)
References (4 earlier) <jpttrh$nqe$1@dont-email.me> <jptvdf$1s5$1@dont-email.me> <jpu11t$c79$1@dont-email.me> <jpu7m3$k7e$1@dont-email.me> <jpuvq0$56i$1@dont-email.me>

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Mike Schilling <mscottschilling@hotmail.com> wrote:
> Eric Sosman wrote:
>>     I notice that you do not address any of the issues Daniel or I
>> raised; you just repeat what you "want."  I know three-year-olds
>> who can do that, but I don't rush to grant their every whim.
> Note that it makes your objections moot.  There's no way to enforce that the 
> called code be "correct", and there is no invoker to worry about. 

Eric and Daniel's "issues" were as nonsensical as arguing against file
removal, for the risk of *all* the bytes of the file being lost as a
consequence.
We're *not* talking of deleting all files of the system, as that would
correspond to delete *every* threads' ThreadLocals.

The whole point of the proposal is to remove *all* the data attached to 
one respective thread under circumstances where that data would no longer
be relevant to the thread.  If some code relied on persistence of Thread-
Local data across two threads obtained from a pool-thread, then this code
is already broken.  And if one wants a cache that survives a single use
of a pool thread, then ThreadLocal would be a really goofy choice for it
(with or without the proposed feature).

Finally, the route of crude workarounds has already been entered by using
thread pools in the first place. In an ideal world, one would allocate
threads and discard them, and have the reuse of OS threads implemented
under the jvm hood, just like with memory.

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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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