title: maven-javadoc-plugin sourceFileExcludes not working
body: <p>I'm not too sure what is the right way to use this tag, but I use it like this:</p>
  
  <pre><code>&lt;sourceFileExcludes&gt;
    &lt;exclude&gt;&lt;/exclude&gt;
    &lt;exclude&gt;&lt;/exclude&gt;
  &lt;/sourceFileExcludes&gt;
  </code></pre>
  
  <p>It doesn't work at all. It seems that there was a known bug in maven that this tag won't work as I found these threads:
  <a href="https://stackoverflow.com/a/26223872/3209177">https://stackoverflow.com/a/26223872/3209177</a></p>
  
  <p>But that was a while ago. I didn't find much useful information on maven website as well.</p>
  
  <p>So how can we exclude certain source files / classes while we build javadoc using maven? </p>