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MAC :: revert java version Linux & Mac




http://stackoverflow.com/questions/13594864/how-to-revert-to-java-1-6-on-mac-os-x-10-7-5


The javajavac, etc. command line tools are sensitive to the value of the JAVA_HOME environment variable and will use 1.6 if this variable points to a 1.6 JDK. The tool /usr/libexec/java_home is your friend here. Running

/usr/libexec/java_home

will print out the appropriate JAVA_HOME value for the most up to date JDK on your system. This will be Java 7, but you can apply constraints using the -v flag, for example

/usr/libexec/java_home -v '1.6*'

will return a JAVA_HOME value for the best available 1.6 JDK on your system. You can use this value to set JAVA_HOME:

export JAVA_HOME=`/usr/libexec/java_home -v '1.6*'`

either as a one-off for a particular Terminal session, or permanently for all future terminal sessions by adding the above line to the .bash_profile file in your home directory.


$ export JAVA_HOME=`/usr/libexec/java_home -v '1.6*'`$ java -versionjava version "1.6.0_37"Java(TM) SE Runtime Environment (build 1.6.0_37-b06-434-11M3909)Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01-434, mixed mode)$ export JAVA_HOME=`/usr/libexec/java_home -v '1.7*'`$ java -versionjava version "1.7.0_09"Java(TM) SE Runtime Environment (build 1.7.0_09-b05)Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)







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