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IBM WebSphere: Deployment and Advanced Configuration by Roland Barcia, Keys Botzum, Tom Alcott, Bill Hines

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Application Packaging

Packing J2EE applications is a surprisingly complex topic. The J2EE module is quite rich and provides quite a bit of freedom when packaging applications for deployment. As we discussed in earlier chapters, J2EE EARs contain modules that are part of the same application, and some of these modules can contain JAR files of utility classes. Application developers must choose how to package these modules and JARs into one or more EAR files. If that wasn't enough, J2EE applications can use modules and JAR files from within and outside of the EAR, depending on the classloader structure. This leaves development teams many options when it comes to application packaging. Unfortunately, many development teams do not even think about ...

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