Object Casket is a simple O/R mapper that can be used together with the Java Persistence API (JPA).
The aim is to provide a simple solution for small projects to store multi-related entities in a simple manner. The current version is experimental and still work in progress. So use at your own risk.
If you want to use maven or some similar tool add the following code to your pom:
<dependencies>
<dependency>
<groupId>org.fuchss</groupId>
<artifactId>object-casket</artifactId>
<version>X.Y.Z</version>
</dependency>
</dependencies>