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Christopher Richardson

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The novel A Deepness in the Sky by Vernor Vinge is set in the distant future. The character Pham Nuwen is responsible for maintaining software whose components are thousands of years old. Today, however, it's difficult to imagine maintaining an Enterprise Java application for more than a few years. More often than not, the application is tightly coupled to infrastructure frameworks that evolve rapidly in ways that don't preserve backwards compatibility. Consequently, upgrading to a new and improved framework can be challenging and risky. Fortunately, there's now a much better way to build Enterprise Java applications: Plain Old Java Objects (POJOs), which are classes that don't implement infrastructure framework-specific interfaces, and non-invasive frameworks such as Spring, Hibernate, JDO, and EJB 3, which provide services for POJOs. Using POJOs future proofs yo... (more)