Fix for JDK Double.parseDouble infinite loop
Dr Andrew John Hughes
gnu_andrew at member.fsf.org
Wed Feb 2 22:43:56 UTC 2011
On 2 February 2011 20:30, Mark Wielaard <mark at klomp.org> wrote:
> On Wed, 2011-02-02 at 20:02 +0000, Alan Bateman wrote:
>> Andrew Haley wrote:
>> > The post on
>> > http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/
>> > describes a (on first sight) trivial bug when parsing strings into
>> > Java Double objects.
>> Thanks for the analysis and patch. We also have a fix from Dmitry
>> Nadezhin that he posted here some time ago (but fell through the cracks
>> for some reason). I expect this issue will be fixed soon.
> Wow, I did some digging to find this. And it was reported back in 2001
> (!): http://bugs.sun.com/view_bug.do?bug_id=4421494
> There is even a suggested fix in the report.
> Dmitry Nadezhin posted about it on the list in 2009:
> If people are looking into floating point issues now, it might be good
> to also take a look at the other issues he mentioned in 2010 when he
> proposed a Math subproject for OpenJDK:
We should look at at least getting these into IcedTea. Sadly, the
archiver seems to have scrubbed the patches but I may have them in my
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