libjava3d-jni software package provides Java3D API (java jni library), 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 libjava3d-jni
libjava3d-jni is installed in your system.
Make ensure the libjava3d-jni package were installed using the commands given below,
$ sudo dpkg-query -l | grep libjava3d-jni *
You will get with libjava3d-jni package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Libraries |
| Package | libjava3d-jni |
| Version | 1.5.2+dfsg-11ubuntu1 |
| Description | Java3D API (java jni library) |
| Sub Section | Libs |