On Ubuntu 12.04 LTS I have installed Sun's JDK7, Eclipse, and the Arduino IDE. I want the Arduino to use OpenJDK 6 and want Eclipse to use Sun's JDK 7.
From my understanding I need to manually choose which Java to use before running each application. This led me to the
update-java-alternatives -l command. When I run this I only see the following:
java-1.6.0-openjdk-amd64 1061 /usr/lib/jvm/java-1.6.0-openjdk-amd64
but when I run 'update-alternatives --config java' I see the following:
*0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java manual mode 2 /usr/lib/jvm/jdk1.7.0/bin/java manual mode 3 /usr/lib/jvm/jre1.7.0/bin/java manual mode
I don't understand why the update-java-alternatives doesn't display the same 3 options. I also don't understand how to switch between OpenJDK6 and JDK7. How I can go about using the OpenJDK6 for Arduino development and Sun JDK7 for Eclipse/Android development?