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

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97145] Re: JLink problem, Mathematica 6, OSX, Java SE 6 (64 bit).
  • From: Scott Morrison <scott.morrison at gmail.com>
  • Date: Fri, 6 Mar 2009 04:26:19 -0500 (EST)
  • References: <gmrmc9$9t1$1@smc.vnet.net>

Hello, Wolfram? Anyone? I've discovered this is also a problem with
Mathematica 7; it just ignores my OS X Java preferences, and runs its
own JVM, unless you specify the CommandLine option in ReinstallJava.

Could someone at least confirm for me that it's impossible to use Java
SE6 through JLink?

thanks,
Scott Morrison

On Feb 10, 2:54 am, Scott Morrison <scott.morri... at gmail.com> wrote:
> I'm having a problem withJLinkin Mathematica 6, on OSX 10.5, with JavaSE6
> (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 loadingJLink, 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 having =
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,
> Scott Morrison



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