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DukesAgeResource is a JAX-RS resource that calculates the age of Duke, the Java mascot.

It is not clear yet from the Your First Cup: An Introduction to the Java EE Platform source text whether every 'JAX-RS RESTful web service' is also a 'JAX-RS resource'.

For brevity, the «wrapper» Component for ''Duke was born on May 23, 1995, when the first demo of Java technology was publicly released.' is combined with this focus diagram (I don't usually recommend this practice).

A *Duke wrapper Component related to the Duke Actor is introduced to carry attributes