Sun Java System Application Server 9.1 Upgrade and Migration Guide

Deploying the Migrated Application

To be able to deploy your migrated applications on Application Server 9.1, it is important to understand classloaders in Application Server 9.1 and changes to the architecture.

Application Server 8.x does not support overriding of libraries such as the default parser. Application Server 9.1 provides the -libraries option for overriding the default XML parser and using a different JAXP compatible implementation of the parser.

You can use the -libraries option to control the scope of your libraries. See the Chapter 2, Class Loaders, in Sun Java System Application Server 9.1 Developer’s Guide for a detailed description of the classloaderhandling mechanism in Application Server 9.1. For more on classloader delegation in Application Server 9.1, see Class Loader Delegation in Sun Java System Application Server 9.1 Developer’s Guide.