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List Archive: gentoo-java
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To: gentoo-java@g.o
From: Greg Tassone <greg@...>
Subject: Re: Question about Sun-Jdk 1.4.2.10
Date: Tue, 29 Nov 2005 14:11:28 -0800
On Wed, 2005-11-30 at 00:35 +0900, Daigo Kobayashi wrote:
> Hi.
> 
> I want to use Java 5.0 on gentoo. But now it marks unstable.
> Is there any task that I can help to unmask Java 5.0? If possible
> I want to try.

OK, here's how this is done.  It's actually easy but I'll include
specific details for you, just in case you're new to this:

      * If it doesn't already exist, create the directory "/etc/portage"

      * Then create the file "/etc/portage/package.unmask" if it doesn't
        already exist.

      * Add the following line(s) to that file (comments may be
        omitted):

#----------------
dev-java/sun-jdk
  # (or whatever vendor package you want -- use the full name)
dev-java/java-sdk-docs
  # (if you have your "doc" USE flag on)
#----------------

      * The above removes the package mask added by the Gentoo
        developers.  However, since the sun-jdk 1.5 package is also
        marked unstable ("~"), you may need to enable the "testing"
        profile for these packages as well.  Unless your system is set
        to ~ you will need to perform the following:

      * If it doesn't already exist, create the file
        "/etc/portage/package.keywords".

      * Add the following lines to that file, where "~arch" is the
        unstable flag for your architecture (e.g., most likely ~x86 or
        ~amd64).  Comments may be omitted, of course:

#----------------
dev-java/sun-jdk ~arch
dev-java/java-sdk-docs ~arch
#----------------


That should do it.  You can now emerge the package with a standard
command:

emerge -av dev-java/sun-jdk


** VERY IMPORTANT **

Unless you know what you're doing, I strongly recommend that you leave
your system VM set to a 1.4 JDK/runtime.  Your message didn't indicate
if you have one installed, so I'll assume you are using Blackdown (which
is 1.4).  If you aren't, you should install it now:

emerge -av dev-java/blackdown-jdk

(or use the JRE... I'm just giving examples at this point)

** Back to the WARNING **

Installing the new sun-jdk will usually set your system VM to that one
(which is 1.5).  To fix this and set a 1.4 system VM, you need to
perform the following steps *AFTER* the emerge:

      * Run the following command (as root) to set a new 1.4 system VM:

java-config --set-system-vm=blackdown-jre-1.4.2.02

(assuming you have that version of the blackdown JRE installed)

      * Now set your user VM to the 1.5 JVM.  Run the following command
        as you standard user account(s):

java-config --set-user-vm=sun-jdk-1.5.0.05

(assuming you installed that version of the sun-jdk)


That should do it.  Enjoy!


> By the way, I'm really sorry to send e-mail to Greg's personal address.
> So I send same mail to list.

No problem at all.

Cheers,
Greg
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Replies:
Re: Question about Sun-Jdk 1.4.2.10
-- Daigo Kobayashi
References:
Question about Sun-Jdk 1.4.2.10
-- Tomasz Buchert
Re: Question about Sun-Jdk 1.4.2.10
-- Greg Tassone
Re: Question about Sun-Jdk 1.4.2.10
-- Daigo Kobayashi
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Updated Jun 17, 2009

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