select_java_home.sh

#!/bin/sh

# Usage:
#   source select_java_home.sh

function select_java_home
{

  local java_home_cmd=/usr/libexec/java_home

  local PS3="Java version#? "

  local java_versions=$(/usr/libexec/java_home -V 2>&1 \
    | awk -F',' '$1 ~ /1.[678].0(_[a-z0-9\-]+)?$/ { gsub(/^ +/, ""); print $1 }')

  select java_version in $java_versions; do
    if [ "" == "$java_version" ]; then
      continue
    fi
    break
  done

  local java_home_to_set=$($java_home_cmd -v "$java_version")

  echo $java_home_to_set
}

JAVA_HOME=$(select_java_home)