$ sudo apt-get update
$ sudo apt-get install java-propose-classpath 

java-propose-classpath is installed in your system.

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

$ sudo dpkg-query -l | grep java-propose-classpath *

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

java-propose-classpath package basic information: