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Groups > comp.lang.java.programmer > #15286

Re: Infinite loop from HashMap.keySet iteration.

From Roedy Green <see_website@mindprod.com.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: Infinite loop from HashMap.keySet iteration.
Date 2012-06-14 11:34 -0700
Organization Canadian Mind Products
Message-ID <ejbkt796o006jku7l0pvgntjc73qlbf4bn@4ax.com> (permalink)
References <EHoCr.13285$ji7.6276@newsfe20.iad>

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On Thu, 14 Jun 2012 09:54:59 -0700, Daniel Pitts
<newsgroup.nospam@virtualinfinity.net> wrote, quoted or indirectly
quoted someone who said :

>This may look "safe", but really the resultsMap internal data structure 
>can become inconsistent because it is being accessed by two threads at 
>the same time.

I did a cursory glance, but are you not modifying the values of keys?
That is a definite no no, even on the same thread.
-- 
Roedy Green Canadian Mind Products
http://mindprod.com
Controlling complexity is the essence of computer programming.
~ Brian W. Kernighan 1942-01-01
.

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Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 09:54 -0700
  Re: Infinite loop from HashMap.keySet iteration. markspace <-@.> - 2012-06-14 10:17 -0700
    Re: Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 10:34 -0700
  Re: Infinite loop from HashMap.keySet iteration. Roedy Green <see_website@mindprod.com.invalid> - 2012-06-14 11:34 -0700
    Re: Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 12:19 -0700
  Re: Infinite loop from HashMap.keySet iteration. Robert Klemme <shortcutter@googlemail.com> - 2012-06-18 04:42 -0700
    Re: Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-18 09:08 -0700
      Re: Infinite loop from HashMap.keySet iteration. Robert Klemme <shortcutter@googlemail.com> - 2012-06-18 18:34 +0200
        Re: Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-18 13:32 -0700
          Re: Infinite loop from HashMap.keySet iteration. Robert Klemme <shortcutter@googlemail.com> - 2012-06-18 23:26 +0200
            Re: Infinite loop from HashMap.keySet iteration. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-18 15:30 -0700

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