This request handler is the “realtime get” handler, and it is missing from some of the documentation, but available in Solrj.
To use it, add this to your solrconfig.xml:
<requestHandler name="/get" class="solr.RealTimeGetHandler">
<lst name="defaults">
<str name="omitHeader">true</str>
</lst>
</requestHandler>
And make sure this block is uncommented in the update handler:
<updateLog class="solr.FSUpdateLog">
<str name="dir">${solr.data.dir:}</str>
</updateLog>
Once configured, you should be able to access the /get endpoint (you’ll see an empty JSON object returned)
http://localhost:8983/solr/articles/get