That&#x27;s weird. By &quot;method variable names&quot; I mean local variables, i.e. those declared inside a method.<p>I&#x27;m not getting the same results as you with a little sample program I wrote - see: <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;JosephRedfern&#x2F;662131ceb2119abf3e83" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;JosephRedfern&#x2F;662131ceb2119abf3e83</a>. Field names and method names are preserved (which make sense), but local variable names are lost (which also makes sense to me!)<p>Are you sure that your example code doesn&#x27;t include debug information?