Jitsi-meet-torture: Fatal error compiling: invalid target release

Hello all,

I am getting this error while running the jitsi-meet-torture

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:testCompile (default-testCompile) on project jitsi-meet-torture: Fatal error compiling: invalid target release: 1.8 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:testCompile (default-testCompile) on project jitsi-meet-torture: Fatal error compiling

Search here and in wider google do not turn up any thing.

$ mvn -version
Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.7.0_251, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.16.0-10-amd64", arch: "amd64", family: "unix"

jitsi-meet-torture is at version cd59494: Fix p2p ice connected check (#270)

Any help will be much appreciated!