WebSphere Application Server implements Java Platform, Enterprise Edition (Java EE). WebSphere V8.5 fully supports Java EE 6 and can support Java Platform, Standard Edition (Java SE) 7 via a plugin.
By configuring WebSphere support EclipseLink, you can create and deploy applications that take advantage of EclipseLink's full support for Java Persistence API (JPA), as well as EclipseLink's many extensions.