#508 - Upgrade to Eclipselink 2.7.4.
#508 - Upgrade to Eclipselink 2.7.4.

goodjwon/spring-data-examples,spring-projects/spring-data-examples,goodjwon/spring-data-examples,spring-projects/spring-data-examples,spring-projects/spring-data-examples,goodjwon/spring-data-examples