title: eclipse is not including all lib files in runnable jar file it creates
body: <p>When I try to run     the jar file creating by eclipse Iv been getting a bunch of errors.
  I unarchive the jar file and saw it had 3 of the 4 lib files (all external)
  The lib files are
     commen2-logging-1.2.jar
     jason-2.4.jar
     httpclient.4.5.1.jar
   httpcore-4.4.4.jar</p>
  
  <p>the one that does not get included is
    commen2-logging-1.2.jar</p>
  
  <p>what I did
  1. removed jar files, put them all in same foil,er, added them to project again 
  2. created a new project</p>