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Groups > comp.lang.java.programmer > #14836
| From | Daniel Pitts <newsgroup.nospam@virtualinfinity.net> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Proposed new Java feature |
| References | <jprnu7$uv8$1@dont-email.me> <jptkmp$vbg$1@dont-email.me> <jptq42$1jo$1@dont-email.me> |
| Message-ID | <8Euwr.47425$On2.20024@newsfe16.iad> (permalink) |
| Date | 2012-05-27 11:46 -0700 |
On 5/27/12 11:00 AM, Mike Schilling wrote: > "markspace"<-@.> wrote in message news:jptkmp$vbg$1@dont-email.me... >> On 5/26/2012 4:11 PM, Mike Schilling wrote: >> >>> Proposed feature: a static method on Thread that clears all ThreadLocals >>> for >>> the current thread. >>> >> >> >> I can see your points. However, I don't have any real experience with >> ThreadLocal, and when a neophyte agrees with your argument, that's a red >> flag. >> >> Here's a blog where someone seems to have the same issue as you. >> >> <http://weblogs.java.net/blog/jjviana/archive/2010/06/10/threadlocal-thread-pool-bad-idea-or-dealing-apparent-glassfish-memor> >> >> At the end of the comments, there's a suggestion to use >> ThreadLocal::remove(), with the implication that it allows the thread >> local variable to be garbage collection. Is there a reason that doesn't >> work for you? > > That acts on an individual ThreadLocal (and works quite well), but it > doens't allow removing all ThreadLocals that might have been accumlated. You're basically saying "This type of resource can leak if not cleared appropriately, so there should be a 'Release all resources' method." When paraphrased that way, does that make it clearer why it isn't a good idea? It would be about the same as a "File.closeAll()" or a "Socket.closeAll()" call. Extremely dangerous and only a crutch for not doing the right thing to begin with.
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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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