Aug 20 2012
How to update sun jdk 7 on Ubuntu 12.04
Oracle has released JDK 7 Update 6 with JavaFX 2.2 Final for GNU/Linux, Mac OS X and MS Windows last week. I have already written how to install Sun JDK 6-7 on Ubuntu 12.04. I want to write how to update JDK 7 Update 6 manually.
Update JDK 7u6:
If you want to manually upgrade to a new version, first uninstall the JDK 7 and then reinstall. You can check your java version in console
"java -version” or online here: Verify java version
Package manager: Those who have already installed an older version of Sun Java via the package manager, removes the same way.
- First, close the web browser (because of java browser plugin).
- Remove the Java version from the alternatives system:
sudo update-alternatives --remove "javac" "/usr/lib/jvm/jdk1.7.0_04/bin/javac" sudo update-alternatives --remove "java" "/usr/lib/jvm/jdk1.7.0_04/bin/java" sudo update-alternatives --remove "javaws" "/usr/lib/jvm/jdk1.7.0_04/bin/javaws"
- Remove the browser plugin link:
sudo rm /usr/lib/mozilla/plugins/libnpjp2.so
- Remove the jdk directory:
sudo rm -rf /usr/lib/jvm/jdk1.7.0_04
- Reinstall JDK 7 Update 6 as described here: How to install Sun JDK 6-7 on Ubuntu 12.04.
Netbeans note: If you uninstall old JDK, NetBeans 7.2 is not starting. Open the netbeans.conf file under etc directory and change the netbeans_jdkhome parameter to the new jdk path.
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