$ sudo apt-get update
$ sudo apt-get install libprotobuf-java 

libprotobuf-java is installed in your system.

Make ensure the libprotobuf-java package were installed using the commands given below,

$ sudo dpkg-query -l | grep libprotobuf-java *

You will get with libprotobuf-java package name, version, architecture and description in a table

libprotobuf-java package basic information: