When trying to runn a servlet, I am getting the below error (however the util.webutil.SupplierCommunication class works fine when called from a JSP)

10:15:01,173 WARN [jbossweb] WARNING: Error for /group1/j2ee/servlet/orderFromAC
java.lang.NoClassDefFoundError: util/webutil/SupplierCommunication
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:1576)
at java.lang.Class.getConstructor0(Class.java:1748)
at java.lang.Class.newInstance0(Class.java:266)
at java.lang.Class.newInstance(Class.java:249)
at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:172)
at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:281)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:339)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:293)
at org.mortbay.jetty.servlet.Dispatcher.dispatch(Dispatcher.java:192)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:151)
at org.mortbay.jetty.servlet.Invoker.service(Invoker.java:115)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:366)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:293)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:581)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1687)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:544)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1637)
at org.mortbay.http.HttpServer.service(HttpServer.java:875)
at org.jboss.jetty.Jetty.service(Jetty.java:543)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:806)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:956)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:823)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:203)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:290)
at org.mortbay.util.ThreadPool$JobRunner.run(ThreadPool.java:743)
at java.lang.Thread.run(Thread.java:536)