For me worked this solution:
First install the developer version from here
https://developer.apple.com/downloads/index.action?name=Java%20for%20OS%20X%20De veloper%20Preview
Then i used this shell script to toogle the javaws from 7 to 6 and revert
put in the variables the path to both java runtimes 😉
________________________________________________________
! /usr/bin/env bash
# Command that toggles the Java web start version between Java 6 and
# Java 7 (or, strictly speaking what ever is the current JDK).
javaws_6=/Library/Java/JavaVirtualMachines/1.6.0_38-b04-436.jdk/Contents/Command s/javaws
javaws_7=/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/j avaws
javaws_bin=/usr/bin/javaws
# Since this normally will be run by user by clicking on the icon in
# Finder, we'll keep it open for a a wee while
function keep_window_open_a_wee_bit() {
local seconds=10
echo "I will exit in $seconds seconds (or hit Ctrl+c to exit now) ..."
sleep $seconds
exit 0
}
function green() {
if [[ -t "0" || -p /dev/stdin ]]; then
echo -e "\033[01;32m${@}\033[0m"
else
echo "$@"
fi
}
function red() {
if [[ -t "0" || -p /dev/stdin ]]; then
echo -e "\033[01;31m${@}\033[0m"
else
echo "$@"
fi
}
function sanity_check() {
if [ ! -f $javaws_bin ]; then
echo $javaws_bin "doesn't exist on" $HOSTNAME "I'll exit"
exit 1
fi
}
## $1 :: from
## $2 :: to
function change_link() {
local from=$1
local to=$2
if [ -f $from ]; then
echo "Enter your password to change the Java version"
sudo ln -sf $from $to
if [[ $(readlink $to) == "$from" ]]; then
echo "Java web start version updated $(green successfully) :-)"
else
echo "Couldn't update the Java web start version :-("
fi
else
echo $from "didn't exist, no touching" $to
fi
}
sanity_check
if [[ $(readlink $javaws_bin) == "$javaws_6" ]]; then
echo "Java web Start uses $(red Java 6), changing it to $(green Java 7) ... "
change_link $javaws_7 $javaws_bin
elif [[ $(readlink $javaws_bin) == "$javaws_7" ]]; then
echo "Java Web Start uses $(red Java 7), changing it to $(green Java 6) ... "
change_link $javaws_6 $javaws_bin
else
echo "Java Web Start" \
"points to something I don't know what it is, setting" \
"it to point to Java 7 "
change_link $javaws_7 $javaws_bin
fi
keep_window_open_a_wee_bit
________________________________________________________
save this in a texteditor under yourdesiredfilename.sh
and run in terminal with root permission with sudo ./yourdesiredfilename.sh
after that you should able to run webstart 6 with command javaws FILENAME.jlnp
everytime you run it it will change the version of java
