First of all, thank you Hozawa for your suggestion, trying to update I realized it wasn't any bug, because the problem persisted, so I investigate a bit more and realized the problem should be Java version and a conflict in ClassLoaders. Finally, removing jaxb-api and jaxb-impl libraries from war and deploying it again over tomcat I was able to schedule jobs without problem. I write this to help anyone could solve the same problem working with tomcat 7, JRE 1.7.0_52 (at least that's my version) and mysql database over Linux. Hope it can help.
