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Re: JLink problem, Mathematica 6, OSX, Java SE 6 (64 bit).

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97299] Re: JLink problem, Mathematica 6, OSX, Java SE 6 (64 bit).
  • From: Scott Morrison <scott.morrison at gmail.com>
  • Date: Tue, 10 Mar 2009 05:36:09 -0500 (EST)
  • References: <gmrmc9$9t1$1@smc.vnet.net> <goqufi$nfb$1@smc.vnet.net>

I've just been told by someone at Wolfram that as of version 7.0.1,
java6 on OS X works.

On Mar 6, 3:38 am, cosmotic <cosmo... at gmail.com> wrote:
> On Feb 10, 5:54 am,ScottMorrison<scott.morri... at gmail.com> wrote:
>
>
>
> > I'm having a problem with JLink in Mathematica 6, on OSX 10.5, with Jav=
a =
> SE 6
> > (64 bit). In particular, I get error messages
>
> >  LinkConnect::linkc:
> >    Unable to connect to LinkObject['/Applications/Mathema<<92>>/
> > m0000011741",
> >      <<2>>].
> >  InstallJava::fail: A link to the Java runtime could not be
> > established.
>
> > when first loading JLink, and later running InstallJava[] results in
>
> >  LinkOpen::linke: Error 19
> >  InstallJava::launch: The Java runtime could not be launched.
>
> > Going to Java preferences, I can switch back to J2SE 5.0 (32 bit) (but
> > not 64 bit), after which the problems go away. For performance
> > reasons, I'd really prefer to be able to use a 64 bit runtime. Does
> > anyone know of a fix for this problem?
>
> > I don't have the same problem with Mathematica 7, but for now I'm havin=
g =
> some
> > mysterious problems in Mathematia 7 (my existing packages randomly hang=
..=
> .?)
> > that I'd like to be able to switch back for a while.
>
> > thanks,
> >ScottMorrison
>
> Open the Info.plist in Mathematica.app/SystemFiles/Links/JLink/
> JLink.app. Edit the Root/Java/JVMVersion, I changed mine to '1.5'. I
> can keep the system at Java6 64bit and Mathematica still works using
> the old version.
>
> Looks like 6.0.3 might fix the problem with Java6.



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