WSAD 5.1: Failed to load servlet, NoClassDefFoundError

[Sean Sullivan]

I am using Websphere Studio Application Developer 5.1 on Windows 2000.
I created a Web project and a Server project.
The Server project type is Websphere Test Environment 4.0
When I start the server in WSAD, the server fails to launch.
I am seeing this error:
[2/6/04 17:50:02:402 PST] 7fa04f86 WebGroup X Servlet Error-[AutomotiveServlet]: Failed to load servlet:
java. lang.NoClassDefFoundError:
org/apache/commons/logging/LogFactory
at foobar.ControlServlet.<clinit>(ControlServlet.java:25)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:262)
at java.beans.Beans.instantiate(Beans.java:233)
at java.beans.Beans.instantiate(Beans.java:77)
at com.ibm.servlet.engine.webapp.WebAppServletManager.loadServlet(WebAppServletManager.java:141)
at com.ibm.servlet.engine.webapp.WebAppServletManager.getServletReference(WebAppServletManager.java:254)
at com.ibm.servlet.engine.webapp.WebApp.getServletReference(WebApp.java:388)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcherInfo.calculateInfo(WebAppRequestDispatcherInfo.java:167)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcherInfo.<init>(WebAppRequestDispatcherInfo.java:51)
at com.ibm.servlet.engine.webapp.WebApp.getRequestDispatcher(WebApp.java:1355)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:234)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:151)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:317)
at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:391)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:284)
at com.ibm.ws.util.CachedThread.run(ThreadPool.java:144)
[2/6/04 17:50:02:402 PST] 7fa04f86 WebGroup X SRVE0026E: [Servlet Error]-[AutomotiveServlet]:
java .lang.NoClassDefFoundError:
org/apache/commons/logging/LogFactory
at foobar.ControlServlet.<clinit>(ControlServlet.java:25)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:262)
at java.beans.Beans.instantiate(Beans.java:233)
at java.beans.Beans.instantiate(Beans.java:77)
at com.ibm.servlet.engine.webapp.WebAppServletManager.loadServlet(WebAppServletManager.java:141)
at com.ibm.servlet.engine.webapp.WebAppServletManager.getServletReference(WebAppServletManager.java:254)
at com.ibm.servlet.engine.webapp.WebApp.getServletReference(WebApp.java:388)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcherInfo.calculateInfo(WebAppRequestDispatcherInfo.java:167)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcherInfo.<init>(WebAppRequestDispatcherInfo.java:51)
at com.ibm.servlet.engine.webapp.WebApp.getRequestDispatcher(WebApp.java:1355)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:234)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:151)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:317)
at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:391)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:284)
at com.ibm.ws.util.CachedThread.run(ThreadPool.java:144)

I've got commons-logging.jar listed in the "Web Library Projects"
Why is this failing?