public InternalDistributedMember getDistributedMember() {
    return getDistributedMember(KnownVersion.CURRENT);
  }
starting in v6.5 this method returns a somewhat crippled Identifier. It is missing any durable
attributes and roles information but contains all other info about the member.

@return the member that initiated this event
geode-core/src/main/java/org/apache/geode/internal/cache/EventID.java