title: How to search public Maven/Ivy repositories for a particular class?
body: <p>There are web sites like <a href="http://mvnrepository.com/" rel="noreferrer">http://mvnrepository.com/</a> letting to search for an "artifact" and giving a definition I can add to my project for a library to be downloaded automatically from a public repository.</p>
  
  <p>But this particular example (mvnrepository.com) (the only working I know actually) is by-definition limited to "search by group, artifact or description" while I would like to search by a class full name. For example I'd like to enter <code>org.apache.commons.lang.NotImplementedException</code> to get <code>&lt;dependency org="commons-lang" name="commons-lang" rev="2.6"/&gt;</code> (or alike) as the answer. Is there a facility for this?</p>