Get the source file from Oracle.Since I used JDK 7, I visited this page and downloaded jdk-7u10-linux-i586.tar.gz (for Linux x86).
Extract it somewhere
curl -J -O -C - http://download.oracle.com/otn-pub/java/jdk/7u10-b18/jdk-7u10-linux-i586.tar.gz?AuthParam=1355492655_c33bc95a6d13e7345ba318a0b46bcc4a mv jdk-7u10-linux-i586.tar.gz?AuthParam=1355492655_c33bc95a6d13e7345ba318a0b46bcc4a jdk-7u10-linux-i586.tar.gz tar -xvvf jdk-7u10-linux-i586.tar.gz
Perform the installation:
sudo mv ./jdk1.7.0_10 /usr/lib/jvm/jdk1.7.0 sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1 sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.0/bin/javac" 1 sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.0/bin/javaws" 1
Now choose the correct version of the programs if you have more than installed (as is most likely the case as the OS often comes with a version, and you install another). This is to avoid the error message that states that the version of java and javac clash (or something similiar).
sudo update-alternatives --config java sudo update-alternatives --config javac sudo update-alternatives --config javaws
[[email protected] droidzone]# sudo update-alternatives --config java There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/bin/gij-4.4 1044 auto mode 1 /usr/bin/gij-4.4 1044 manual mode * 2 /usr/lib/jvm/jdk1.7.0/bin/java 1 manual mode Press enter to keep the current choice[*], or type selection number:
As noted, I’ve chosen the version I just installed, which is jdk1.7.0.
Depending on the versions you have installed, you may need to repeat similiarly for:
[[email protected] droidzone]# sudo update-alternatives --config javac There is only one alternative in link group javac: /usr/lib/jvm/jdk1.7.0/bin/javac Nothing to configure.
And:
[[email protected] droidzone]# sudo update-alternatives --config javaws There is only one alternative in link group javaws: /usr/lib/jvm/jdk1.7.0/bin/javaws Nothing to configure.
You will notice that since I had only single versions of javac and javaws, I didnt need to choose another one. It may just be worthwhile to try these commands anyway.
Confirm that the version of java and javac correspond:
[[email protected] droidzone]# `which java` -version java version "1.7.0_10" Java(TM) SE Runtime Environment (build 1.7.0_10-b18) Java HotSpot(TM) Server VM (build 23.6-b04, mixed mode) [[email protected] droidzone]# `which javac` -version javac 1.7.0_10 [[email protected] droidzone]#