java7-runtime software package provides virtual package provided by default-jre, openjdk-7-jre, 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 java7-runtime
java7-runtime is installed in your system.
Make ensure the java7-runtime package were installed using the commands given below,
$ sudo dpkg-query -l | grep java7-runtime*
You will get with java7-runtime package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Virtual packages |
| Package | java7-runtime |
| Version | |
| Description | virtual package provided by default-jre, openjdk-7-jre |
| Sub Section | virtual |