Elasticsearch install

[DRaver]

I have a question for a new Elasticsearch installation.

In installed elasticsearch in this way.

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/setup-repositories.html

Do I need also Java to work with ES and Xenforo?

I found a sign here: https://xenforo.com/community/threads/how-to-basic-elasticsearch-installation-debian-ubuntu.26163/

apt-get install openjdk-7-jre-headless

But is openjdk-7-jre-headless not to old? Is openjdk-8-jre-headless not better?

 

[Paul B]

That thread was originally posted almost two years ago, so undoubtedly there will be newer versions.