gistfile1.sh

#!/bin/sh


# originally from http://www.macosxhints.com/article.php?story=20060121171126988

# note that the last four lines were modified from the original;
# I also updated the Current alias (since my /usr/bin/java* are symlinked through that)
# and I added the rm and removed the -h option from ln

cd /System/Library/Frameworks/JavaVM.framework/Versions

CURJDK="`readlink CurrentJDK`"
echo Current JDK version: $CURJDK

if [ "$1" == "" ]; then
echo Installed versions:
ls
exit
fi

VERFOUND=`ls | grep $1 | head -n 1`

if [ "$VERFOUND" != "$1" ]; then
BASE="`basename $0`"
echo Error: Could not change JDK-- version $1 not installed!
echo Run $BASE without arguments to see a list of installed versions.
exit 127
fi

echo You must now enter your Mac OS X password to change the JDK.
sudo rm Current
sudo rm CurrentJDK
sudo ln -fsv $1 Current
sudo ln -fsv $1 CurrentJDK