automatically determine JAVA_HOME on OS X
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Key: HADOOP-7205
URL: https://issues.apache.org/jira/browse/HADOOP-7205
Project: Hadoop Common
Issue Type: Improvement
Affects Versions: 0.22.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Fix For: 0.23.0
OS X provides a java_home command that will return the user's selected jvm.
The hadoop-env.sh should use this command if JAVA_HOME is not set.
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