Need a little help understanding java and /etc/profile.d/***

A few days ago I installed jre-6u10-1 and jdk-6u10-1 via pacman on my desktop machine; for the web plugin.
The packages installed in /opt/java/...
I later installed jedit, via pacman. It runs fine as it (/usr/bin/jedit) is hardcoded to look for java in /opt/java/...
Today, I installed jedit (pacman -S jedit) on my laptop which did not have any java installed.
Pacman automatically installed openjdk6-jre-6u10-1 as a prerequisite.
Openjdk installs to /usr/lib/jvm/..., therefore jedit fails as /opt/java... is non-existent.
I suppose Sun's java and the opensource version are installed in different locations to keep from overwriting each other.
I could easily edit /usr/bin/jedit to point to the openjdk location and it would work.
But I'm a little uncertain of the following three files:
Sun's java installs /etc/profile.d/jre.sh and /etc/profile.d/jdk.sh
which do the following (respectively):
export PATH=$PATH:/opt/java/jre/bin
if [ ! -f /etc/profile.d/jdk.sh ]; then
export JAVA_HOME=/opt/java/jre
fi
and
export J2SDKDIR=/opt/java
export PATH=$PATH:/opt/java/bin
export JAVA_HOME=/opt/java
The opensource java package installs /etc/profile/openjdk6.sh
which does the following:
export J2SDKDIR=/usr/lib/jvm/java-1.6.0-openjdk
export J2REDIR=$J2SDKDIR/jre
export JAVAHOME=/usr/lib/jvm/java-1.6.0-openjdk
#export CLASSPATH="${CLASSPATH:+$CLASSPATH:}$J2SDKDIR/lib:$J2REDIR/lib"
So I am left with a few options:
1. edit /usr/bin/jedit to look in the opensource location
2. edit /usr/bin/jedit to use the $J2SDKDIR variable when looking for java
3. update the $PATH via /etc/profile.d/openjdk6.sh to include java's location
I think all three methods would work, but I have limited experience with java and would like some input as to which proposed solution is the best going forward.
What methods are other java apps using to find java?
Thanks
(edit: more descriptive title)
Last edited by cjpembo (2008-11-11 04:24:47)

I think the best option would be to ask the maintainer to modify the jedit-bin file, and have it launch
$J2SDKDIR/bin/jre/java cp $CP -Djedit.home="/usr/share/jedit" -mx${JAVA_HEAP_SIZE}m org.gjt.sp.jedit.jEdit $@
That way, it should work with both java implementations (completely untested, btw.)

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how to use them. and if not what is an alternative?
please helpAre you asking about queues?
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I am shure this is something easy for most of you
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Last edited by cyberius (2011-07-27 18:50:54)

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http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a008010fed1.shtml#topic7
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description Outside 7 Dig Local Calls Via Avaya
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Please rate helpful answers!

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+i get prompt to this screen that shows the world and then a folder with a ? mark but then after a few sec it boots right up+
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/Re: Need a little Help with my new xfi titanium? ?
ZDragon wrote:
I'm unsure about the first question. Do you even have a 7. system and receiver? If you just have 5., you should be able to remap the audio in the THX console.
I do have a sony 7. reciever str de-995 its an older one but its only for my cpu. At first i didnt even have THX installed because it didnt come with the driver package for some reason until i downloaded the daniel_k support drivers and installed it. But it doesnt help in anyway.
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I read somewhere that the daniel_k support drivers would fix this but it didnt for me and many others.
For the second question i assumed it would be becasue of the spidf pass through and that my onboard sound card was inferior to the xfi titaniums. But i wasnt sure and i was hopeing that someone would have a solution for that problem because i miss controlling the volume with my keyboard.

Need a little help with syncing my iPod.

I got a new macbook pro for cristmas and a few cds. After i tried to sync my ipod to itunes i put a symbol next to each song that i got from other cds saying that they were downloading but they werent. Also the cds i downloaded to my ipod for the first time didnt appear at all. Need help.

/Re: Need a little Help with my new xfi titanium? ?
ZDragon wrote:
I'm unsure about the first question. Do you even have a 7. system and receiver? If you just have 5., you should be able to remap the audio in the THX console.
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I have checked every where regarding the first question and alot of people are having problems getting sound out of there rear channels and the sound being re-mapped to the surround right and the surround left as if there rear left and rear right.
I read somewhere that the daniel_k support drivers would fix this but it didnt for me and many others.
For the second question i assumed it would be becasue of the spidf pass through and that my onboard sound card was inferior to the xfi titaniums. But i wasnt sure and i was hopeing that someone would have a solution for that problem because i miss controlling the volume with my keyboard.

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Bill
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