Find JAVA_HOME on any system
Returns the location of JAVA_HOME as an absolute path on windows, mac, and linux. It runs asynchronously.
$(dirname $(dirname $(readlink $(which javac))))
Copyright 2013 Joseph Spencer.Licensed under the Apache License, Version 2.0 (the "License");you may not use this file except in compliance with the License.You may obtain a copy of the License atUnless required by applicable law or agreed to in writing, softwaredistributed under the License is distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.See the License for the specific language governing permissions andlimitations under the License.