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

libopenjpa-java is installed in your system.

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

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

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

libopenjpa-java package basic information: