Fix for JDK Double.parseDouble infinite loop

[Dr Andrew John Hughes]

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:
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2009-November/003153.html
>
> 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:
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2010-January/003556.html
>
> Cheers,
>
> Mark
>
>

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
inbox somewhere.
-- 
Andrew :-)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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