eclipse-titan software package provides TITAN TTCN-3 toolset from the Eclipse project, 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 eclipse-titan
eclipse-titan is installed in your system.
Make ensure the eclipse-titan package were installed using the commands given below,
$ sudo dpkg-query -l | grep eclipse-titan *
You will get with eclipse-titan package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Java |
| Package | eclipse-titan |
| Version | 5.5.1-1 |
| Description | TITAN TTCN-3 toolset from the Eclipse project |
| Sub Section | Java |