So, I downloaded the latest Sun JDK - v6.0 update 12 - and installed it in /opt/java. Then I performed the following steps:
- Create a symbolic link from /usr/lib/jvm to the installed JDK
cd /usr/lib/jvm sudo ln -s /opt/java/jdk1.6.0_12 java-6u12-sun
- Created /usr/lib/jvm/.java-6u12-sun.jinfo. I simply copied .java-6-sun and editted (see below).
Note, that in order to use the NG rather than "classic" plug-in, I specified /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so for the *-javaplugin.so alternatives. I also needed to add an entry for firefox-3.0-javaplugin.so, which is missing from .java-6-sun.jinfo.
- Installed alternatives for /usr/lib/jvm/java-6u12-sun. For each line of .java-6u12-sun.jinfo I ran update-alternatives --install, e.g.
sudo update-alternatives --install \ /usr/bin/firefox-3.0-javaplugin.so \ firefox-3.0-javaplugin.so \ /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so \ 64
Doing this manually is a bit tedious, so I created a Perl script to do - see below.
- Selected the java-6u12-sun jav alternative, i.e.
sudo update-java-alternatives -s java-6u12-sun
name=java-6-sun-1.6.0.12 alias=java-6u12-sun priority=64 section=non-free jre ControlPanel /usr/lib/jvm/java-6u12-sun/jre/bin/ControlPanel jre java /usr/lib/jvm/java-6u12-sun/jre/bin/java jre java_vm /usr/lib/jvm/java-6u12-sun/jre/bin/java_vm jre javaws /usr/lib/jvm/java-6u12-sun/jre/bin/javaws jre jcontrol /usr/lib/jvm/java-6u12-sun/jre/bin/jcontrol jre keytool /usr/lib/jvm/java-6u12-sun/jre/bin/keytool jre pack200 /usr/lib/jvm/java-6u12-sun/jre/bin/pack200 jre policytool /usr/lib/jvm/java-6u12-sun/jre/bin/policytool jre rmid /usr/lib/jvm/java-6u12-sun/jre/bin/rmid jre rmiregistry /usr/lib/jvm/java-6u12-sun/jre/bin/rmiregistry jre unpack200 /usr/lib/jvm/java-6u12-sun/jre/bin/unpack200 jre orbd /usr/lib/jvm/java-6u12-sun/jre/bin/orbd jre servertool /usr/lib/jvm/java-6u12-sun/jre/bin/servertool jre tnameserv /usr/lib/jvm/java-6u12-sun/jre/bin/tnameserv jre jexec /usr/lib/jvm/java-6u12-sun/jre/lib/jexec jdk HtmlConverter /usr/lib/jvm/java-6u12-sun/bin/HtmlConverter jdk appletviewer /usr/lib/jvm/java-6u12-sun/bin/appletviewer jdk apt /usr/lib/jvm/java-6u12-sun/bin/apt jdk extcheck /usr/lib/jvm/java-6u12-sun/bin/extcheck jdk idlj /usr/lib/jvm/java-6u12-sun/bin/idlj jdk jar /usr/lib/jvm/java-6u12-sun/bin/jar jdk jarsigner /usr/lib/jvm/java-6u12-sun/bin/jarsigner jdk java-rmi.cgi /usr/lib/jvm/java-6u12-sun/bin/java-rmi.cgi jdk javac /usr/lib/jvm/java-6u12-sun/bin/javac jdk javadoc /usr/lib/jvm/java-6u12-sun/bin/javadoc jdk javah /usr/lib/jvm/java-6u12-sun/bin/javah jdk javap /usr/lib/jvm/java-6u12-sun/bin/javap jdk jconsole /usr/lib/jvm/java-6u12-sun/bin/jconsole jdk jdb /usr/lib/jvm/java-6u12-sun/bin/jdb jdk jhat /usr/lib/jvm/java-6u12-sun/bin/jhat jdk jinfo /usr/lib/jvm/java-6u12-sun/bin/jinfo jdk jmap /usr/lib/jvm/java-6u12-sun/bin/jmap jdk jps /usr/lib/jvm/java-6u12-sun/bin/jps jdk jrunscript /usr/lib/jvm/java-6u12-sun/bin/jrunscript jdk jsadebugd /usr/lib/jvm/java-6u12-sun/bin/jsadebugd jdk jstack /usr/lib/jvm/java-6u12-sun/bin/jstack jdk jstat /usr/lib/jvm/java-6u12-sun/bin/jstat jdk jstatd /usr/lib/jvm/java-6u12-sun/bin/jstatd jdk jvisualvm /usr/lib/jvm/java-6u12-sun/bin/jvisualvm jdk native2ascii /usr/lib/jvm/java-6u12-sun/bin/native2ascii jdk rmic /usr/lib/jvm/java-6u12-sun/bin/rmic jdk schemagen /usr/lib/jvm/java-6u12-sun/bin/schemagen jdk serialver /usr/lib/jvm/java-6u12-sun/bin/serialver jdk wsgen /usr/lib/jvm/java-6u12-sun/bin/wsgen jdk wsimport /usr/lib/jvm/java-6u12-sun/bin/wsimport jdk xjc /usr/lib/jvm/java-6u12-sun/bin/xjc plugin xulrunner-1.9-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin firefox-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin firefox-3.0-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin iceape-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin iceweasel-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin mozilla-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin midbrowser-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so plugin xulrunner-javaplugin.so /usr/lib/jvm/java-6u12-sun/jre/lib/i386/libnpjp2.so
The perl-script used in step 3. above. Copy-and-paste into /tmp/java6u12sun.pl then:
cd /tmp chmod +x java6u12sun.pl sudo ./java6u12sun.pl
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#!/usr/bin/perl use strict; # Read .jinfo file. my @lines = (); open(JINFO, '/usr/lib/jvm/.java-6u12-sun.jinfo') or die "Can't open .jinfo file."; @lines =; close(JINFO); # Install alternatives. for (@lines) { if ($_=~ m+/usr/lib/jvm/java-6u12-sun+) { my @split = split ' ', $_; system "update-alternatives --install /usr/bin/@split[1] @split[1] @split[2] 64"; } } 1;
