ecj-gcj software package provides standalone version of the Eclipse Java compiler (native version), you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ecj-gcj
ecj-gcj is installed in your system.
Make ensure the ecj-gcj package were installed using the commands given below,
$ sudo dpkg-query -l | grep ecj-gcj *
You will get with ecj-gcj package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Java |
| Package | ecj-gcj |
| Version | 3.5.1-3+b1 [armhf, s390x], 3.5 |
| Description | standalone version of the Eclipse Java compiler (native version) |
| Sub Section | Java |