Error: JAVA_HOME is not defined correctly - after maven installation
Solution 1:
You should add these lines to your ~/.pam_environment file instead (create it if it doesn't exist)
PATH DEFAULT=${PATH}:/opt/jdk1.7.0_40/jdk1.7.0_40/bin
JAVA_HOME DEFAULT=/opt/jdk1.7.0_40/jdk1.7.0_40
More information (read this)
Using .bashrc is not recommended at the above link.