I'm using Eclipse and Tomcat.  I have no problems retreiving Google Calendar 
data from a java application.  It's when I try to retreive it from a 
Servlet.  Does anyone know why I get a ClassNotFoundException running it 
through Tomcat?  Below is my stacktrace.

Jul 22, 2011 2:36:14 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet 
[VendorSchedule.servlets.VendorSchedule] in context with path 
[/VendorSchedule] threw exception [Servlet execution threw an exception] 
with root cause
java.lang.ClassNotFoundException: 
com.google.gdata.util.AuthenticationException
at 
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678)
at 
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523)
at VendorSchedule.servlets.VendorSchedule.doGet(VendorSchedule.java:43)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:851)
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:278)
at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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