I am trying to install a JDK 8 on OS X Mountain Lion (to experiment with the new lambda features).
A machine recently updated from OS X 10.6 to 10.8, with
$ sw_vers ProductName: Mac OS X ProductVersion: 10.8.2 BuildVersion: 12C60 $ ls -l /Library/Java/JavaVirtualMachines/ Home@ -> jdk1.7.0_09.jdk/Contents/Home/ jdk1.7.0_09.jdk/ $ ls -l /System/Library/Java/JavaVirtualMachines/ 1.6.0.jdk/
and this folder from the OS X 10.6 era:
In ~/.bashrc I've set
So I have
$ java -version java 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) $ /usr/libexec/java_home /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home
How I installed JDK 8
Downloaded the .tar.gz file from http://jdk8.java.net/lambda/ and unpacked it into
(I created the folders
- Changed the symlink
/Library/Java/JavaVirtualMachines/Hometo point to jdk1.8
Now I have
$ java -version openjdk version "1.8.0-ea" OpenJDK Runtime Environment (build 1.8.0-ea-lambda-nightly-h2135-20121203-b67-b00) OpenJDK 64-Bit Server VM (build 25.0-b05, mixed mode) $ echo $JAVA_HOME /Library/Java/JavaVirtualMachines/Home $ ls /Library/Java/JavaVirtualMachines Home@ -> jdk1.8.0.jdk/Contents/Home/ ...
java_home utility doesn't seem to care:
$ /usr/libexec/java_home /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home
It doesn't even know that there is a JDK 8 available:
$ /usr/libexec/java_home -v 1.8* Unable to find any JVMs matching version "1.8*".
I'd like the
/usr/libexec/java_home utility to find my installed JDKs, so I can use something like this:
alias setjdk17='export JAVA_HOME=$(/usr/libexec/java_home -v 1.7*)' alias setjdk18='export JAVA_HOME=$(/usr/libexec/java_home -v 1.8*)'
and get rid of the
Home symlink. Does anyone know
- how I can properly install JDK 8?
- how I can make