I am currently building a Windows Server 2003 box running JRun 4.0 and JDK 1.3.0_02 . The reason for the old JDK is that I am attempting to make the legacy apps function correctly on the new server.

The problem I am encourntering in with a file called MailServlet.class . When attempting to access this servlet, I recieve this message:

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500
com/oreilly/servlet/ParameterParser


java.lang.NoClassDefFoundError: com/oreilly/servlet/ParameterParser
at MailServlet.doPost(MailServlet.java:122)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at jrunx.util.DynamicClassLoaderFilter.doFilter(DynamicClassLoaderFilter .java:48)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java: 259)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java: 541)
at jrun.servlet.http.WebService.invokeRunnable(WebService.java:172)
at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPoo l.java:320)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.j ava:428)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool. java:266)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

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After doing some reasearch, I am under the impression that the servlet is referencing a parameter in the O'Reilly servlet package. There was a archive file (cos.jar) located in the original class directory when I was using JRun 3.1... Possibly I'm putting the .jar in the wrong directory in 4.0? I've searched for any sort of documentation for the oreilly package, but can't seem to find any, online or otherwise. Any clues as to how to resolve this problem or find some sort of documentation would be greatly appreciated. Thanks!