I randomly discovered this file: https://github.com/apache/lucene-solr/blob/releases/lucene-solr/7.5.0/solr/core/src/test-files/mailing_lists.pdf
This task here is to consider options and (possibly) make changes, e.g.
- to keep the file as is
- to remove the file
- to refresh the file content (keep it as .pdf format) e.g. to mention the http://lucene.apache.org/solr/community.html page and/or the Solr Reference Guide
- to replace the file (moving away from .pdf format) and to refresh its content
It appears three tests are using the file i.e. a simple remove or replace might not be a practical option?