WebSphere Application Server V7: Understanding Class Loaders

An IBM Redpaper publication

Note: This is publication is now archived. For reference only.

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Published on October 15, 2009

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IBM Form #: REDP-4581-00


Authors: Fabio Albertoni

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    Abstract

    Understanding how the Java™ and WebSphere® class loaders work is critical to packaging and deploying Java EE5 applications. Failure to set up the class loaders properly most likely results in a cascade of the infamous class loading exceptions (such as ClassNotFoundException) when trying to start your application.

    In IBM® Redpaper™ publication, we explain class loaders and how to customize the behavior of the WebSphere class loaders to suit your particular application’s requirements. The paper concludes with an example designed to illustrates these concepts.

    This paper is the stand-alone version of chapter 13 of WebSphere Application Server V7 Administration and Configuration Guide, SG24-7615.

    Table of Contents

    A brief introduction to Java class loaders

    WebSphere class loaders overview

    Configuring WebSphere for class loaders

    Class loader viewer

    Learning class loaders by example

     

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