configuration library for JVM languages

 typesafe-config is a library providing configuration file parsing support to
 JVM languages. It is implemented in plain Java with no external dependencies
 and supports three configuration file formats:
 .
  * Java properties
  * JSON files
  * A human-friendly JSON superset
 .
 It can additionally merge multiple files across all formats and load
 configuration data from plain files, URLs or the class path.