title: NoSuchMethodError after cleaning the project
body: <p>I'm currently getting this error:</p>
  
  <pre><code>java.lang.NoSuchMethodError: org.json.JSONObject.keySet()Ljava/util/Set;
  at ee.ut.cs.Parser.accessLint(Parser.java:39)
  </code></pre>
  
  <p>I have tried cleaning the project to no awail.</p>
  
  <p>I suspect I have an error in the src/plugin/parse-htmlraw/build.xml while creating the jar file but I'm not certain. I understand that this error is because the function does not exist at runtime, but the object is created which means that the class is there, just not that function. I decompiled the .class file in created jar and it has the necessary functions. </p>
  
  <p>Code is available at <a href="https://github.com/jaansusi/WCAGgrader" rel="nofollow">https://github.com/jaansusi/WCAGgrader</a></p>
  
  <p><strong>Q: What is wrong with the build that produces this error?</strong></p>
  
  <p><strong>The problem is that even if I put the necessary class files in the jar I create, they are not linked correctly and the class that's called in the jar can't locate functions inside the other classes. The class object JSONObject is created but the functions inside the JSONObject class can't be found.</strong></p>