John is correct, the way on Linux to communicate
which Java location to use is not through $PATH
variable, but through a symlink /usr/bin/java.
Could you create symlink:
/usr/bin/java64 to /opt/jre1.6.0_64/bin/java
to control Java upgrade path globally without
modifying J shortcuts?
--- John Randall <[EMAIL PROTECTED]> wrote:
> Oleg Kobchenko wrote:
>
> > Nothing runs under GNU Java, I can't understand why
> > they keep pushing it.
>
> I agree. The same is true of Totem movie player.
>
> > The culprit I believe is "libgcj", which could be
> > the GNU Java gcj. So you could possibly uninstall
> > the GNU Java, and follow carefuly the Sun Java
> > install: basically put it in a common folder like
> > /usr/local/j2sdk1.4.2_<version> and include in $PATH.
> >
>
> If you take the defaults on the Sun installation, it puts it under /opt:
>
> [EMAIL PROTECTED] j601]$ ls /opt
> j2re1.4.2 jdk1.6.0 jre1.6.0 jre1.6.0_64
>
> Using alternatives (if you have it) you can link several versions of Java
> to the command java, and easily change the default. I currently have
>
>
> [EMAIL PROTECTED] j601]$ which java
> /usr/bin/java
> [EMAIL PROTECTED] j601]$ file /usr/bin/java
> /usr/bin/java: symbolic link to `/etc/alternatives/java'
> [EMAIL PROTECTED] j601]$ file /etc/alternatives/java
> /etc/alternatives/java: symbolic link to `/opt/jdk1.6.0/bin/java'
>
> The default above is 32-bit Java. If you want to run both 32-bit and
> 64-bit J, you need 64-bit Java, and give an explicit path for the latter.
> I have
>
> [EMAIL PROTECTED] ~]$ more ~/j601/jw
> #!/bin/sh
> java -Xss6000000 -jar ${JPATHj601-~/j601}/j.jar "$@"
> [EMAIL PROTECTED] ~]$ more ~/j601_64/jw
> #!/bin/sh
> /opt/jre1.6.0_64/bin/java -Xss6000000 -jar ${JPATHj601_64-~/j601_64}/j.jar
> "$@"
>
> Best wishes,
>
> John
>
>
>
>
>
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>
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