Greedy Coin Changer in Groovy
Here is a version of the Greedy Coin Changer problem inspired by these Scala and Python solutions.
This solution uses Java 5 enums (supported in Groovy 1.5+) but other variations are possible.
Results of your search request can come from various sources: the Groovy website itself,
the JIRA issues, the API documentation, as well as a few other interesting Groovy-related blogs.