josm-plugins software package provides Plugins for JOSM, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install josm-plugins
josm-plugins is installed in your system.
Make ensure the josm-plugins package were installed using the commands given below,
$ sudo dpkg-query -l | grep josm-plugins *
You will get with josm-plugins package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Utilities |
| Package | josm-plugins |
| Version | 0.0.svn31964+ds-1 |
| Description | Plugins for JOSM |
| Sub Section | Utils |