error

[baditaflorin]

Unable to locate the Javac Compiler in:
/usr/lib/jvm/java-7-openjdk-amd64/jre/../lib/tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 minute 10 seconds
[INFO] Finished at: Wed Jul 15 21:02:09 EEST 2015
[INFO] Final Memory: 16M/239M
[INFO] ------------------------------------------------------------------------

[baditaflorin]

javac -version
The program 'javac' can be found in the following packages:

• default-jdk
• ecj
• gcj-4.8-jdk
• gcj-4.9-jdk
• openjdk-7-jdk
• openjdk-6-jdk
• openjdk-8-jdk
  Try: sudo apt-get install

[baditaflorin]

nop, it`s working now :) installed also openjdk-7-jdk