WebSphere Application Server V8.5 Migration Guide

Chapter 6. Migrating from Oracle WebLogic 131

The second application that we migrate is MVC, which is a J2EE application that includes a

Container Managed Persistence (CMP) - EJB application that runs on WebLogic. The reason

that we select this application is to demonstrate the CMP mappings of EJB objects manually.

We use IBM WebSphere Application Server Migration Tool V3.5 to migrate both the Trade

and MVC applications. We explain the capabilities of the new Migration Toolkit and how to

configure it in 6.4, “Application Migration Tool - WebLogic to WebSphere” on page 133.

Another useful tool that you can use is the Oracle Java Application Verification Kit (AVK). This

tool is intended to help developers test their applications for the correct usage of J2EE APIs

and portability across J2EE. For more information, go to:

http://java.sun.com/j2ee/verified/avk_enterprise.html

6.2 Prerequisites and assumptions

There are prerequisites and assumptions you must consider before you continue with the

migration examples. One basic requirement is that you should have the destination

environment installed and configured as described in Chapter 4, “Installation and

configuration of the Application Migration Tools” on page 89. That chapter provides initial

background knowledge if you are not yet familiar with IBM products.

You should be familiar with the J2EE specification and architecture, and be able to

understand and run basic SQL commands. You should be familiar with Rational Application

Developer V8.5 and Apache Ant. You should also have basic familiarity with Oracle

WebLogic Server 10.3.6.

Install the following software before you start the migration:

򐂰 Java SE 6

Use Java SE 6 because it is supported by WebSphere Application Server V8.5 and you

must ensure that your applications work in this JVM. Before Java SE 6, the specification

name was Java 2 Platform, Standard Edition (J2SE). The WebSphere Application Server

V8.5 installation includes Java SE 6. You do not need to install additional JDKs on

your machine.

򐂰 Apache Ant 1.6.5

Apache Ant is a Java based build tool. It is similar to the Make tool, but has many

enhanced features, so it can be extended using Java classes instead of writing shell

commands, which makes it a good choice for Java applications.

򐂰 IBM WebSphere Application Server V8.5

Before you migrate to WebSphere Application Server V8.5, explore the sample

applications that are shipped with the product and read the publications that are listed in

“Related publications” on page 437.

WebLogic APIs: Although the samples in the book do not use WebLogic proprietary APIs,

it is possible that your application might depend on APIs that are not available in

WebSphere Application Server. The Migration Toolkit helps with some WebLogic APIs,

such as startup and shutdown classes, but others might require redesign and

manual rewriting.