Proj4J is a Java library to transform point coordinates from one geographic coordinate system to another, including datum transformations.
'org.osgeo:proj4j:0.1.0'
<dependency>
<groupId>org.osgeo</groupId>
<artifactId>proj4j</artifactId>
<version>0.1.0</version>
</dependency>
<dependency org="org.osgeo" name="proj4j" rev="0.1.0"/>
"org.osgeo", "proj4j", "0.1.0"