apt tool and API have been deprecated as of JDK 7. Mention on: API

To resolve you can import tools.jar %JDK JAVA%\lib\tools.jar.

In my case “C:\Program Files\Java\jdk1.7.0_01\lib\tools.jar”

[InfoQ] (http://www.infoq.com/cn/articles/cf-java-annotation)

[JavaBeat] (http://www.javabeat.net/java-6-0-features-part-2-pluggable-annotation-processing-api/)

[JavaLobby] (http://www.javalobby.org/java/forums/t17876.html)