According Hibernate on  WebSphereExtendedJtaPlatform This class is reported to work on WAS V 6 in any of the standard J2EE/JEE component containers.
https://docs.jboss.org/hibernate/orm/4.1/javadocs/org/hibernate/service/jta/platform/internal/WebSphereExtendedJtaPlatform.html

Since we are running WebSphere 8.5.5.11 ,Please let us know t which class is support on WebPShere  8.5.5.x level