com.caucho.config.LineConfigException: WEB-INF/web.xml:4:

Resin.conf:
<!--
  - Resin 3.0 configuration file.
  -->
<resin xmlns="http://caucho.com/ns/resin"
      xmlns:resin="http://caucho.com/ns/resin/core">
  <!--
    - Logging configuration for the JDK logging API.
    -->
  <log name="" level="info" path="stdout:" timestamp="[%H:%M:%S.%s] "/>
  <log name="com.caucho.java" level="config" path="stdout:"
      timestamp="[%H:%M:%S.%s] "/>
  <log name="com.caucho.loader" level="config" path="stdout:"
      timestamp="[%H:%M:%S.%s] "/>

  <!--
    - For production sites, change dependency-check-interval to something
    - like 600s, so it only checks for updates every 10 minutes.
    -->
  <dependency-check-interval>2s</dependency-check-interval>

  <!--
    - You can change the compiler to "javac" or jikes.
    - The default is "internal" only because it's the most
    - likely to be available.
    -->
  <javac compiler="internal" args=""/>

  <!-- Security providers.
    - <security-provider>
    -    com.sun.net.ssl.internal.ssl.Provider
    - </security-provider>
    -->

  <!--
    - If starting bin/resin as root on Unix, specify the user name
    - and group name for the web server user.
    -
    - <user-name>resin</user-name>
    - <group-name>resin</group-name>
    -->

  <!--
    - Configures threads shared among all HTTP and SRUN ports.
    -->
  <thread-pool>
    <!-- Maximum number of threads. -->
    <thread-max>128</thread-max>

    <!-- Minimum number of spare connection threads. -->
    <spare-thread-min>25</spare-thread-min>
  </thread-pool>

  <!--
    - Configures the minimum free memory allowed before Resin
    - will force a restart.
    -->
  <min-free-memory>1M</min-free-memory>

  <server>
    <!-- adds all .jar files under the resin/lib directory -->
    <class-loader>
      <tree-loader path="${resin.home}/lib"/>
      <tree-loader path="${server.root}/lib"/>
    </class-loader>

    <!-- Configures the keepalive -->
    <keepalive-max>500</keepalive-max>
    <keepalive-timeout>120s</keepalive-timeout>

    <resin:if test="${resin.isProfessional()}">
      <select-manager enable="true"/>
    </resin:if>

    <!-- The http port -->
    <http server-id="" host="*" port="8080"/>

    <!--
      - SSL port configuration:
      -
      - <http port="8443">
      -  <openssl>
      -    <certificate-file>keys/gryffindor.crt</certificate-file>
      -    <certificate-key-file>keys/gryffindor.key</certificate-key-file>
      -    <password>test123</password>
      -  </openssl>
      - </http>
      -->

    <!--
      - The local cluster, used for load balancing and distributed
      - backup.
      -->
    <cluster>
      <srun server-id="" host="127.0.0.1" port="6802"/>
    </cluster>

    <!--
      - Configures the persistent store for single-server or clustered
      - in Resin professional.
      -->
    <resin:if test="${resin.isProfessional()}">
      <persistent-store type="cluster">
        <init path="session"/>
      </persistent-store>
    </resin:if>

    <!--
      - Enables/disables exceptions when the browser closes a connection.
      -->
    <ignore-client-disconnect>true</ignore-client-disconnect>

    <!--
      - For security, use a different cookie for SSL sessions.
      - <ssl-session-cookie>SSL_JSESSIONID</ssl-session-cookie>
      -->

    <!--
      - Enables the cache (available in Resin Professional)
      -->
    <resin:if test="${isResinProfessional}">
      <cache path="cache" memory-size="8M"/>
    </resin:if>

    <!--
      - Enables periodic checking of the server status.
      -
      - With JDK 1.5, this will ask the JDK to check for deadlocks.
      - All servers can add <url>s to be checked.
      -->
    <resin:if test="${isResinProfessional}">
      <ping>
        <!-- <url>http://localhost:8080/test-ping.jsp</url> -->
      </ping>
    </resin:if>

    <!--
      - Defaults applied to each web-app.
      -->
    <web-app-default>
      <!--
        - Extension library for common jar files.  The ext is safe
        - even for non-classloader aware jars.  The loaded classes
        - will be loaded separately for each web-app, i.e. the class
        - itself will be distinct.
        -->
      <class-loader>
        <tree-loader path="${server.root}/ext-webapp"/>
      </class-loader>

      <!--
        - Sets timeout values for cacheable pages, e.g. static pages.
        -->
      <cache-mapping url-pattern="/" expires="5s"/>
      <cache-mapping url-pattern="*.gif" expires="60s"/>
      <cache-mapping url-pattern="*.jpg" expires="60s"/>

      <!--
        - Servlet to use for directory display.
        -->
      <servlet servlet-name="directory"
              servlet-class="com.caucho.servlets.DirectoryServlet"/>

      <!--
        - Enable EL expressions in Servlet and Filter init-param
        -->
      <allow-servlet-el/>

      <!--
        - for security, disable session URLs by default.
        -->
      <session-config>
        <enable-url-rewriting>false</enable-url-rewriting>
      </session-config>

      <!--
        - For security, set the HttpOnly flag in cookies.
        - <cookie-http-only/>
        -->
    </web-app-default>

    <!--
      - Sample database pool configuration
      -
      - The JDBC name is java:comp/env/jdbc/test
        <database>
          <jndi-name>jdbc/mysql</jndi-name>
          <driver type="org.gjt.mm.mysql.Driver">
            <url>jdbc:mysql://localhost:3306/test</url>
            <user></user>
            <password></password>
            </driver>
            <prepared-statement-cache-size>8</prepared-statement-cache-size>
            <max-connections>20</max-connections>
            <max-idle-time>30s</max-idle-time>
          </database>
      -->

    <!--
      - Default host configuration applied to all virtual hosts.
      -->
    <host-default>
      <class-loader>
        <library-loader path="webapps/WEB-INF/lib"/>       
        <compiling-loader path="webapps/WEB-INF/classes"/>
      </class-loader>

      <!--
        - With another web server, like Apache, this can be commented out
        - because the web server will log this information.
        -->
      <access-log path="logs/access.log"
            format='%h %l %u %t "%r" %s %b "%{Referer}i" "%{User-Agent}i"'
            rollover-period="1W"/>

      <!-- creates the webapps directory for .war expansion -->
      <web-app-deploy path="webapps"/>

      <!-- creates the deploy directory for .ear expansion -->
      <ear-deploy path="deploy">
        <ear-default>
          <!-- Configure this for the ejb server
            -
            - <ejb-server>
            -  <config-directory>WEB-INF</config-directory>
            -  <data-source>jdbc/test</data-source>
            - </ejb-server>
            -->
        </ear-default>
      </ear-deploy>

      <!-- creates the deploy directory for .rar expansion -->
      <resource-deploy path="deploy"/>

      <!-- creates a second deploy directory for .war expansion -->
      <web-app-deploy path="deploy"/>
    </host-default>

    <!-- includes the web-app-default for default web-app behavior -->
    <resin:import path="${resinHome}/conf/app-default.xml"/>

    <!-- configures a deployment directory for virtual hosts -->
    <host-deploy path="hosts">
      <host-default>
        <resin:import path="host.xml" optional="true"/>
      </host-default>
    </host-deploy>

    <!-- configures the default host, matching any host name -->
    <host id="" root-directory=".">
      <!--
        - configures an explicit root web-app matching the
        - webapp's ROOT
        -->
      <web-app id="/" document-directory="webapps/ROOT"/>
    </host>
  </server>
</resin>

web.xml:
  <?xml version="1.0" encoding="windows-1252" ?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">
  <description>Empty web.xml file for Web Application</description>
- <servlet>
  <servlet-name>WelcomeAction</servlet-name>
  <servlet-class>hkclient.actions.welcome.WelcomeAction</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>CreateHeaderAction</servlet-name>
  <servlet-class>hkclient.actions.CreateHeaderAction</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>ShowPictureAction</servlet-name>
  <servlet-class>hkclient.actions.ShowPictureAction</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>MenuAction</servlet-name>
  <servlet-class>hkclient.actions.menu.MenuAction</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>LoginAction</servlet-name>
  <servlet-class>hkclient.actions.login.LoginAction</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>DefaultPage</servlet-name>
  <servlet-class>hkclient.structuredpages.DefaultPage</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>HeaderMenuMainasiframeFooterPage</servlet-name>
  <servlet-class>hkclient.structuredpages.HeaderMenuMainasiframeFooterPage</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>PicturePage</servlet-name>
  <servlet-class>hkclient.structuredpages.PicturePage</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>MenuPage</servlet-name>
  <servlet-class>hkclient.structuredpages.MenuPage</servlet-class>
  </servlet>
- <servlet>
  <servlet-name>TestAction</servlet-name>
  <servlet-class>hkclient.TestAction</servlet-class>
  </servlet>
- <servlet-mapping>
  <servlet-name>WelcomeAction</servlet-name>
  <url-pattern>/welcomeAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>CreateHeaderAction</servlet-name>
  <url-pattern>/createHeaderAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>ShowPictureAction</servlet-name>
  <url-pattern>/showPictureAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>MenuAction</servlet-name>
  <url-pattern>/menuAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>LoginAction</servlet-name>
  <url-pattern>/login/loginAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>LoginAction</servlet-name>
  <url-pattern>/login/logoutAction</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>PicturePage</servlet-name>
  <url-pattern>/picturePage</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>HeaderMenuMainasiframeFooterPage</servlet-name>
  <url-pattern>/headerMenuMainasiframeFooterPage</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>DefaultPage</servlet-name>
  <url-pattern>/defaultPage</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>MenuPage</servlet-name>
  <url-pattern>/menuPage</url-pattern>
  </servlet-mapping>
- <servlet-mapping>
  <servlet-name>TestAction</servlet-name>
  <url-pattern>/testAction</url-pattern>
  </servlet-mapping>
- <session-config>
  <session-timeout>35</session-timeout>
  </session-config>
- <mime-mapping>
  <extension>html</extension>
  <mime-type>text/html</mime-type>
  </mime-mapping>
- <mime-mapping>
  <extension>txt</extension>
  <mime-type>text/plain</mime-type>
  </mime-mapping>
- <welcome-file-list>
  <welcome-file>welcomeAction</welcome-file>
  </welcome-file-list>
  </web-app>

du har en WEB-INF/classes/hkclient/actions/welcome/WelcomeAction.class ?

Også det jeg troede første gang.
Men alt ligger der hvor det skal

/thinge

Har nu skiftet tomcat, hvor den godt kan finde servlets
Nu har jeg bare en anden fejl, som du tjekke

LUKKET

/thinge