Path: csiph.com!usenet.pasdenom.info!aioe.org!.POSTED!not-for-mail
From: Roedy Green <see_website@mindprod.com.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: Infinite loop from HashMap.keySet iteration.
Date: Thu, 14 Jun 2012 11:34:35 -0700
Organization: Canadian Mind Products
Lines: 16
Message-ID: <ejbkt796o006jku7l0pvgntjc73qlbf4bn@4ax.com>
References: <EHoCr.13285$ji7.6276@newsfe20.iad>
Reply-To: Roedy Green <see_website@mindprod.com.invalid>
NNTP-Posting-Host: Z2l1DcCELS0rATq8NqV4Sw.user.speranza.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Complaints-To: abuse@aioe.org
X-Notice: Filtered by postfilter v. 0.8.2
X-Newsreader: Forte Agent 6.00/32.1186
Xref: csiph.com comp.lang.java.programmer:15286

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
.