Problem setting JAVA_HOME when installing jdk1.5

[RVDowning]

On Mandriva 2006, trying to install jdk1.5 (used by Tomcat 5.5) with jdk 1.4 already installed. I try to add JAVA_HOME="/usr/java/jdk1.5.0_07" <br> export JAVA_HOME after the export statement in /etc/profile. However, logging out and back in, when I do echo $JAVA_HOME I still get /usr/lib/jdk-1.4.2_09. Any ideas on how to get it to point to the newer one?

 

I was leaving jdk 1.4 there since some older java programs would need it. Does this have to be removed?

 

[moved from Software by spinynorman]

[ianw1974]

How is your line showing in /etc/profile? I'm assuming something like:

 

export JAVA_HOME="/usr/java/jdk1.5.0_07"

 

is that correct? If not, maybe try it this way, see how it works.

[RVDowning]

Will have to get home so I can look at it again before I swear to it, but I think it is as follows:

 

JAVA_HOME="/usr/java/jdk1.5.0_07"

export JAVA_HOME

 

I think I also tried it with just the one statement as you indicated, but with the same result. Could something later in the "chain" be changing it back? Confused.....

[neddie]

Try looking in the files .bashrc and .bash_profile in your user directory. If those files are setting the JAVA_HOME then it'll overwrite what was in there earlier. You shouldn't have to remove 1.4.

[RVDowning]

Following is the end of /etc/profile:

 

 

export PATH PS1 USER LOGNAME MAIL HOSTNAME INPUTRC NLSPATH

 

# following two lines added by rvd 07/29/2006 according to http://howtoforge.org/comment/reply/1264

JAVA_HOME="/usr/java/jdk1.5.0_07"

export JAVA_HOME

 

export HISTCONTROL HISTSIZE

 

for i in /etc/profile.d/*.sh ; do

if [ -x $i ]; then

. $i

fi

done

 

unset i

 

Try looking in the files .bashrc and .bash_profile in your user directory. If those files are setting the JAVA_HOME then it'll overwrite what was in there earlier. You shouldn't have to remove 1.4.

 

Well, .bash_profile reads:

# .bash_profile

 

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

. ~/.bashrc

fi

 

# User specific environment and startup programs

 

PATH=$PATH:$HOME/bin

 

export PATH

unset USERNAME

# startx

 

 

 

.backrc reads:

# .bashrc

 

# User specific aliases and functions

 

# Source global definitions

if [ -f /etc/bashrc ]; then

. /etc/bashrc

fi

 

# enable programmable completion features

if [ -f /etc/bash_completion ]; then

. /etc/bash_completion

fi

[neddie]

What about /etc/rc or /etc/rc.local - maybe they set it? It must be being set somewhere!

How did you originally install 1.4?

[RVDowning]

/etc/rc is added as an attachment. Too long to copy the text. Don't think I saw anythign there that seemed pertinent.

 

/etc/rc.local contains:

 

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

 

# following is sensors-detect

# I2C adapter drivers

modprobe i2c-nforce2

modprobe i2c-isa

# I2C chip drivers

modprobe eeprom

modprobe it87

# sleep 2 # optional

/usr/bin/sensors -s # recommended

# added by rvd because of udev problems

service udev start

 

touch /var/lock/subsys/local

 

 

Seems to me that 1.4 was installed as part of the original Mandriva 2006 install. Don't think I did it separately. One would think there would be some standard place for the setting of a JAVA_HOME environment variable.

Edited July 31, 2006 by RVDowning

[pmpatrick]

Try resetting your JAVA_HOME in your ~/.bash_profile. That should work; the home .bash_profile overrides the global settings in /etc/profile and probably whatever else is resetting your JAVA_HOME as that appears to be what is occurring.

[RVDowning]

What I ended up doing was:

 

I went into /etc/profile.d directory and marked each java related file (sh and csh) as non-executable. These were 1.4.2 related. I then added files:

 

jdk-1.5.0_07.sh with the following:

export JAVA_HOME=/usr/java/jdk-1.5.0_07

export JDK_HOME=$JAVA_HOME

export PATH="$PATH:$JAVA_HOME/bin"

export MANPATH="$MANPATH:$JAVA_HOME/man"

 

and jre-1.5.0_07.sh with the following:

if [ -z "$JAVA_HOME" ]; then

export JAVA_HOME=/usr/java/jre-1.5.0_07

export PATH="$PATH:$JAVA_HOME/bin"

fi

 

and made them executable.

 

I removed the entries I had put in .etc/profile and logged out and back in.

 

Now the PATH and JAVA_HOME environment variables look right. Perhaps I should have just deinstalled the jdk(jre)1.4.2 stuff -- I don't know. I haven't yet found anything that doesn't work right. Any good reason to keep the 1.4.2 release, or should I urpme it -- or will that cause me some yet unknown problems?

[ianw1974]

I only have java 1.5 on my system, I removed the old 1.4 version when I manually installed the latest from java's website.

[RVDowning]

BTW, I did the same. Just have the 1.5 now.