SOLR-17611 SolrJ User-Agent, pass Solr version #2927
+18
−13
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https://issues.apache.org/jira/browse/SOLR-17611 (read this for context)
No tests. I suppose the best test would be something in the smoke test which is at release time where we definitely have the "specification version" in the JAR manifest. Once we have something that detects the version to behave differently, we will need it to work in a unit test environment too, where we want the latest behavior but don't have a spec version in a manifest.
Maybe the PR should include something in SolrVersion to parse it as well?