The Java ES upgrade model was significantly changed in Java ES 6, and this changed model has been carried through to Java ES 7. Specifically, Java ES releases version 5 and earlier were based on a unified upgrade model that sometimes made it difficult to resolve dependencies across component products or deliver timely patches to individual components. Starting with Java ES 6, the upgrade model was changed such that each component product uses its own upgrade installer.
As with upgrading from Java ES 6, the upgrade process now involves running the upgrade installation utilities included with the component(s) to be upgraded. As with the general installation procedures, the component upgrade procedures should be performed in the order described in Suggested Sequence for Installing Java ES 7. Refer to the relevant product documentation for specific component upgrade instructions.