This is related to my previous email thread, but slightly different circumstances.
Apache Tomcat 6.0.14 Java 1.6.0_02-b05 Wicket 1.3.0-beta3 I'm trying to run a Wicket application and it's not working. I'm getting a NoClassDefFoundError: java.lang.NoClassDefFoundError: org/apache/wicket/protocol/http/WebApplication I think I must be misunderstanding something basic about Tomcat web application deployment. So, I create a basic "HelloWorld" type servlet to try and troubleshoot the problem. I've double- and triple-checked the package against the documentation and even verified it by listing the contents of the JAR with unzip. What am I doing wrong? The Wicket JAR file and two of its dependencies are in WEB-INF/lib: @home:~/dev/tomcat/webapps/HelloWicket/WEB-INF/classes$ ls -ltr ../lib total 1648 -rw-r--r-- 1 vince vince 1657246 2007-09-04 10:00 wicket-1.3.0-beta3.jar -rw-r--r-- 1 vince vince 7449 2007-09-04 10:00 slf4j-simple-1.4.3.jar -rw-r--r-- 1 vince vince 15345 2007-09-04 10:00 slf4j-api-1.4.3.jar Here's my web.xml: @home:~/dev/tomcat/webapps/HelloWicket/WEB-INF$ cat web.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <context-param> <param-name>configuration</param-name> <param-value>development</param-value> </context-param> <servlet> <servlet-name>HelloWicket</servlet-name> <servlet-class>org.apache.wicket.protocol.http.WicketServlet </servlet-class> <init-param> <param-name>applicationClassName</param-name> <param-value>mypackage.HelloWicketApp</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>HelloWicket</servlet-name> <url-pattern>/helloWicket/*</url-pattern> </servlet-mapping> </web-app> Here's the layout of my servlet's directory: @home:~/dev/tomcat/webapps/HelloWicket$ ls -ltrR .: total 8 -rw-r--r-- 1 vince vince 44 2007-09-04 10:00 index.html drwxr-xr-x 4 vince vince 4096 2007-09-04 10:27 WEB-INF ./WEB-INF: total 12 drwxr-xr-x 2 vince vince 4096 2007-09-04 10:00 lib drwxr-xr-x 3 vince vince 4096 2007-09-04 10:05 classes -rwxr-xr-x 1 vince vince 755 2007-09-04 10:08 web.xml ./WEB-INF/lib: total 1648 -rw-r--r-- 1 vince vince 1657246 2007-09-04 10:00 wicket-1.3.0-beta3.jar -rw-r--r-- 1 vince vince 7449 2007-09-04 10:00 slf4j-simple-1.4.3.jar -rw-r--r-- 1 vince vince 15345 2007-09-04 10:00 slf4j-api-1.4.3.jar ./WEB-INF/classes: total 8 -rw-r--r-- 1 vince vince 601 2007-09-04 10:04 HelloWicket.html drwxr-xr-x 2 vince vince 4096 2007-09-04 10:20 mypackage ./WEB-INF/classes/mypackage: total 16 -rw-r--r-- 1 vince vince 238 2007-09-04 10:06 HelloWicket.java -rw-r--r-- 1 vince vince 192 2007-09-04 10:20 HelloWicketApp.java -rw-r--r-- 1 vince vince 468 2007-09-04 10:20 HelloWicket.class -rw-r--r-- 1 vince vince 347 2007-09-04 10:20 HelloWicketApp.class Thank you, Vince