title: java.lang.NoClassDefFoundError: org/htmlparser/util/ParserException
body: <p>I'm trying to make this <a href="http://htmlparser.sourceforge.net/" rel="nofollow noreferrer">http://htmlparser.sourceforge.net/</a> code run in eclipse. 
  There instructions are simply "To use the library, you will need to add either the htmllexer.jar or htmlparser.jar to your classpath when compiling and running."</p>
  
  <p>I've added htmllexer.jar and htmlparser.jar to my build path and everything compiles fine. But at runtime eclipse can't seem to find those jar files. I'm not sure how to add those jar files to the runtime classpath....</p>
  
  <p>My eclipse looks like this:
  <img src="https://i.stack.imgur.com/g4uDd.png" alt="enter image description here"></p>