Re: [expert] Java -- TWO JRE's ?

[Sylvain GIL]

On Fri, Nov 05, 1999 at 03:21:22PM -0600, Benjamin Sher wrote:
> Dear friends:
> 
> A simple question: if one application needs one version of JRE and
> another a different version of JRE, is is possible to run TWO JRE's
> simultaneously on Linux?

Take a look at the following lines, this is what i use to switch from
jdk1.1.6 to jdk1.2 . I did it yesterday, it seems to work.

-- CUT --

# =-=-=-=-=-= jdk classpath =-=-=-=-=-=-=
JAVA_CLASSPATH=/usr/local/jdk116_v5/lib/classes.zip:.
JAVA2_CLASSPATH=/usr/local/jdk1.2/jre/lib/rt.jar:.

# =-=-=-=-=-= Servlets classes =-=-=-=-=-=
APACHE_CLASSPATH=/usr/lib/apache/ApacheJServ.jar:/home/httpd/classes/servlet-2.0
.jar

java1 () {
        export JAVA_HOME=/usr/local/jdk116_v5
    export PATH=$BASE_PATH:$JAVA_PATH
    export CLASSPATH=$JAVA_CLASSPATH:APACHE_CLASSPATH
}

java2 () {
        export JAVA_HOME=/usr/local/jdk1.2
    export PATH=$BASE_PATH:$JAVA2_PATH
    export CLASSPATH=$JAVA2_CLASSPATH:$APACHE_CLASSPATH
}

# default setting is jdk1.1
java1

-- END CUT --

and the following in my /etc/profile

-- CUT --
BASE_PATH="/bin:/usr/bin:/sbin:/usr/sbin:/usr/X11R6/bin:/usr/local/bin:/usr/game
:/usr/local/sbin:/usr/sbin:/usr/local/enlightenment/bin"

JAVA_PATH=/usr/local/jdk116_v5/bin
JAVA2_PATH=/usr/local/jdk1.2/bin

PATH=$BASE_PATH:$JAVA_PATH

export BASE_PATH JAVA2_PATH JAVA_PATH PATH
-- END CUT --

-- 
  Sylvain GIL - <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
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