[Cialug] JAVA version woes.

[Tom Pohl]

It's a way to be able to have multiple versions of java installed and  
choose which is called from the default path when one types java :)

Here are instructions similar to the ones I followed when I went  
through your hell :)  The only difference is I downloaded the tar  
file from Sun and used a spec file to build the java rpms.
http://forums.fedoraforum.org/archive/index.php/t-27965.html

-Tom

On Dec 7, 2005, at 8:43 AM, Nathan C. Smith wrote:

> Looks like it does.  apparently not all do?
>
> Is this a "better" way or just a way of accomodating both javas  
> should one
> want to do that?
>
> -----Original Message-----
> From: Tom Pohl [mailto:tom at tcpconsulting.com]
> Sent: Wednesday, December 07, 2005 8:35 AM
> To: Central Iowa Linux Users Group
> Subject: Re: [Cialug] JAVA version woes.
>
>
> Does CenoOS use alternatives?
>
>
> In fedora core, you need to do something like this:
> alternatives --install /usr/bin/java java /usr/java/j2sdk1.4.2_09/ 
> bin/java
> 301
> alternatives --install /usr/bin/javac javac
> /usr/java/j2sdk1.4.2_09/bin/javac 301
>
>
> -Tom
>
>
> On Dec 7, 2005, at 8:31 AM, Jerry Heiselman wrote:
>
>
> you need to add /usr/java/j2sdk1.4.2_09 to your path.
>
> In csh or tsch type: setenv PATH $PATH:/usr/java/j2sdk1.4.2_09/bin
> In sh, ksh, or bash type: export PATH=$PATH:/usr/java/j2sdk1.4.2_09/ 
> bin
>
> You probably want to add those statements to your .profile  
> or .login file
> too.
>
> The alternative that may work better is to put a link in /usr/bin  
> for java.
> To do that type: ln -s /usr/java/j2sdk1.4.2_09/bin/java /usr/bin/java.
>
> If you have a csh-based shell, then you will need to type in: rehash
> once you have done that.
>
>
> On 12/7/05, Nathan C. Smith <smith at ipmvs.com> wrote:
>
> So I'm trying to install the community edition of Scalix on Centos  
> 4.2.
> After I installed Redhat-derived Centos 4.2 (everything) I removed  
> the jcc
> or whatever the gcc compatible java stuff is called.  Now if I say:
> whereis java
> java: /etc/java /usr/lib/java /usr/share/java
>
> But
>
> java -version
> -bash: java: command not found
>
> Hmm.  So Java lives at: /usr/java/j2sdk1.4.2_09
>
> Seems to me I need to get it into the path somehow right?  Can  
> anyone throw
> me a clue on how to proceed so that when I type java -version from  
> anywhere
> I get
>
> java version "1.4.2_09"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_09-b05)
> Java HotSpot(TM) Client VM (build 1.4.2_09-b05, mixed mode)
>
> I'm not sure if a path change or a symlink is what I need...
>
> -Nate
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