gcj-4.8-jre-headless software package provides Java runtime environment using GIJ/Classpath (headless version), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gcj-4.8-jre-headless
gcj-4.8-jre-headless is installed in your system.
Make ensure the gcj-4.8-jre-headless package were installed using the commands given below,
$ sudo dpkg-query -l | grep gcj-4.8-jre-headless *
You will get with gcj-4.8-jre-headless package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Java |
| Package | gcj-4.8-jre-headless |
| Version | 4.8.4-2ubuntu1~14.04.3 [amd64, |
| Description | Java runtime environment using GIJ/Classpath (headless version) |
| Sub Section | Java |