Update JDK alternatives to Oracle JDK on openSUSE systems.

update-java-alternative.sh

#! /bin/bash

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.


#Before running this script, you need to have installed the Oracle JDK from the RPM
#In case icedtea-web is installed, you need to re-run the script whenever the IcedTea Firefox plug-in is updated.

#Original inspiration http://www.freetechie.com/blog/installing-oracle-sun-java-jrejdk-1-7-update-7-on-opensuse-12-2-x86_64/

echo "Updating Java plugin"
sudo /usr/sbin/update-alternatives --install "/usr/lib64/browser-plugins/javaplugin.so" "javaplugin" "/usr/java/latest/jre/lib/amd64/libnpjp2.so" 20000

for exec in /usr/java/latest/bin/* 
do
    matchingBase=${exec##*/} #String manipulation from here: http://stackoverflow.com/questions/2664740/extract-file-basename-without-path-and-extension-in-bash
    matching=/usr/bin/$matchingBase
    if [ -x $exec ] && [ -x $matching ]
    then
        echo "sudo /usr/sbin/update-alternatives --install \"$matching\" \"$matchingBase\" \"$exec\" 20000"
        sudo /usr/sbin/update-alternatives --install "$matching" "$matchingBase" "$exec" 20000
    fi
done

Thank you for this great script. I'm trying now to add it the updating of browser-plugins "libnpjp2.so").

Update: Jaheoo did it before me: https://gist.github.com/jaehoo/a39c7bfba1cd7673932e