A type-safe heterogenous Map or a Named field Tuple depending how you look at it
'com.twitter:jaqen:0.1.0'
<dependency> <groupId>com.twitter</groupId> <artifactId>jaqen</artifactId> <version>0.1.0</version> </dependency>
<dependency org="com.twitter" name="jaqen" rev="0.1.0"/>
"com.twitter", "jaqen", "0.1.0"