This shared library is the heart of the OpenWMS.org TCP/IP driver that contains the actual implementation of the driver module but not the message specific implementation details. OpenWMS.org ships with an implementation of the OSIP message specification that is bundled in a separate module and can easily be replaced in projects with different message structures. For instance a project that connects to PLC that communicate with SAP EWM messages might implement and integrate their own library with that particular kind of messages but still require this essential shared lib.
Find further documentation in the Wiki
Build the component locally and release to Maven Central
$ mvn deploy -Prelease,gpg