title: jetty run error for websockets project
body: <p>I'm trying to get websockets working with jetty. I'm on eclipse. When I try to run it, following error appears on console.
  java.lang.NoClassDefFoundError: org/objectweb/asm/ClassVisitor</p>
  
  <p>I even tried with test.war that is provided with jetty. But error remains same.</p>