Thursday 7 July 2011

Set Sun/Oracle JDK as default

Per default Ubuntu comes with OpenJDK. I want to use the Sun/Oracle JDK.

check default JDK:

$ java -version
java version "1.6.0_22"
OpenJDK Runtime Environment (IcedTea6 1.10.2) (6b22-1.10.2-0ubuntu1~11.04.1) OpenJDK Server VM (build 20.0-b11, mixed mode)
set Sun/Oracle JDK as default JDK:
$ sudo update-alternatives --config java
* 0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto mode 1 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual mode 2 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode
Asterisk shows the chosen JDK.
check:
$ java -version
java version "1.6.0_24" Java(TM) SE Runtime Environment (build 1.6.0_24-b07) Java HotSpot(TM) Server VM (build 19.1-b02, mixed mode)

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