After to have been through the net for a long time to configure correctly java on linux i've written this article to solve this issue.
Steps to install correctly java in linux:
-Let's supose java is installed under the directory /j2ee
Steps:
1.Create a file vi /etc/profile.d/java.sh
2.Insert he follow lines:
export PATH=/j2ee/java/jdk/jre/bin:$PATH
JAVA_HOME=”/j2ee/java/jdk”
export JAVA_HOME
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=$JAVA_HOME/lib/tools.jar
export CLASSPATH=$CLASSPATH:.
3.Make it executable this file running this sentence:
chmod 755 /etc/profile.d/java.sh
4.After that, let's install the plugin for firefox:
The plugin you have to use depends of the version the browser was compiled. Generally it was done with gcc 3.x, so execute:
ln -s /j2ee/java/jdk/jre/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/firefox/plugins
If the gcc is 2.96
ln -s /j2ee/java/jdk/jre/plugin/i386/ns7-gcc29/libjavaplugin_oji.so /usr/lib/firefox/plugins
5.To install the preferences edit the file /usr/share/applications/sun_java.desktop to look like this:
[Desktop Entry]
Name=Java
Comment=Java Control Panel
Exec=/j2ee/java/jdk/jre/bin/ControlPanel
Icon=/j2ee/java/jdk/jre/plugin/desktop/sun_java.png
Terminal=0
Type=Application
Categories=Application;Settings;
6.To test the configuration, restart you're pc and after run on a terminal:
which java
which javac
echo $JAVA_HOME
echo $PATH
echo $CLASSPATH
If everything works you have configured right you're JVM to start to develop and run java applications.
Now on a web browser window write: about:plugins, you have to see all the java MIME Types listed there.
Finally go to /usr/share/applications and search and execute sun_java.desktop it has to run the preferences of Java version installed on the machine
Greetings.
This article has been written using this references:
http://www.linuxparatodos.net/portal/staticpages/index.php?page=como-java
http://www.linux.com/base/ldp/howto/Enterprise-Java-for-Linux-HOWTO-2.html
