I have JFreeChart, JCommon and IText jars in my classpath.  I am using
eclipse and running tutorial4.params with ec.display.Console.  I have
seemingly followed the youtube tutorials to setup ECJ to a T.  However, when
I run this, I get the errors below and have no explanation.  It seems like
it may not be able to read a resource which I can verify is present at the
correct location.  Why might this be?  Thanks!

Exception in thread "main" java.lang.NullPointerException

at javax.swing.ImageIcon.<init>(

at ec.display.Console.getPlayButton(

at ec.display.Console.getJToolBar(

at ec.display.Console.getJContentPane(

at ec.display.Console.initialize(

at ec.display.Console.<init>(

at ec.display.Console.main(