activemq software package provides Java message broker - server, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install activemq
activemq is installed in your system.
Make ensure the activemq package were installed using the commands given below,
$ sudo dpkg-query -l | grep activemq *
You will get with activemq package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Java |
| Package | activemq |
| Version | 5.14.1+dfsg-1 |
| Description | Java message broker - server |
| Sub Section | Java |