This is a small Java project initially developed for a class on distributed Java (mostly Java EE and Spring).
The code consists of both a client and a webapp that provides
a trivial calculation capability to illustrate using Spring
WebMVC. There's also a useful EmbeddedServer class that allows
the webapp to be run as a standalone Java application (content
based on this tutorial). The project can also be built
as a WAR using Maven.
Finally, there's a sample of using Google's Places API with Spring WebMVC providing the client functionality and Jackson doing conversion of the JSON result to a graph of Java objects.