Two bash functions to switch JVM on OS X (with GVM installed as well)

.bash_profile.sh

export JAVA7_HOME=`/usr/libexec/java_home -v 1.7*`
export JAVA8_HOME=`/usr/libexec/java_home -v 1.8*`

function jdk7 {
    export JAVA_HOME=$JAVA7_HOME
    set_path
    echo "Using Java 7 $JAVA_HOME"
}

function jdk8 {
    export JAVA_HOME=$JAVA8_HOME
    set_path
    echo "Using Java 8 $JAVA_HOME"
}

function set_path {
    PATH=/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin
    PATH=$PATH:$JAVA_HOME/bin
    PATH=$PATH:/usr/local/mysql/bin/
    
    # Set other path vars here
    
    # Reload GVM
    export GVM_INIT=
    [[ -s "/Users/tyates/.gvm/bin/gvm-init.sh" && ! $(which gvm-init.sh) ]] && source "/Users/tyates/.gvm/bin/gvm-init.sh"
}

jdk7

Hi Tim. Thanks for this. Any chance you could provide a version that works on zsh as well? I'm a happy oh_my_zsh user, and your GVM_INIT implementation confuses it.

Also, I use the Oracle Java installer, so I usually have to set my path directly rather than use the java_home command, unless I'm doing something wrong (likely).