The first one (1Z0 -860 ) refers OCPJBCD ( previously SCBCD) and it tests
Java EE 5 EJB and JPA. 1Z0-895 exam code refers OCE EJB Developer certification introduced for Java EE 6. There are four Oracle Certified Expert (OCE) level certifications available for Java EE 6 and OCE EJB is the one to
test EJB 3.1. The other OCE exams are OCE JPA, OCE Web Component and OCE Web Services.
The latest Java EE 6 Certification for business component developer is divided into two certifications - EJB and JPA. These two certifications are completely different from previous SCBCD/OCPJBCD certification.
The Java Designer’s general principle to architecting high scale or low scale application is choosing between EJB Centric Design (with EJB) or Web Centric Design (without EJB). OCE EJB Certification covers all design/developer knowledge required to implement Enterprise Java Bean Components.
So take OCE certification instead of old one.