Maven compilable Facebook Hive UDF APIs collection found from Jira issue Hive-1545.
mvn package
This will create the executable in target directory.
Add facebook-udfs-x.x.x-all.jar into Hive.
hive > CREATE FUNCTION md5 as 'com.facebook.hive.udf.UDFMD5';
hive > select md5("@#789QWE");
c40a3517f12eeb416aad1037b99434e0