cup software package provides LALR parser generator for Java(tm), you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cup
cup is installed in your system.
Make ensure the cup package were installed using the commands given below,
$ sudo dpkg-query -l | grep cup *
You will get with cup package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Java |
| Package | cup |
| Version | 0.11a+20060608-3 |
| Description | LALR parser generator for Java(tm) |
| Sub Section | Java |