I configured gwt with spring and spring security that works fine on local development server on google app engine. I deployed to the appspot but there it shows critical error when i see on the log. and on the browser side shows 500 server error.

log error

Uncaught exception from servlet javax.servlet.UnavailableException: Initialization failed. at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:200) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:168) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:123) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:243) at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5838) at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5836) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398) at com.google.net.rpc.impl.Server$2.run(Server.java:852) at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:56) at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:576) at com.google.net.rpc.impl.Server.startRpc(Server.java:807) at com.google.net.rpc.impl.Server.processRequest(Server.java:369) at com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:442) at com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:319) at com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:290) at com.google.net.async.Connection.handleReadEvent(Connection.java:474) at com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:831) at com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:207) at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:103) at com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:251) at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run(JavaRuntime.java:404) at java.lang.Thread.run(Unknown Source)

web.xml

<web-app>

  <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
  <servlet-name>dispatcher</servlet-name>
  <url-pattern>*.rpc</url-pattern>
  </servlet-mapping>

  <filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
 </filter>
 <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
 </filter-mapping>

 <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!-- Default page to serve -->
  <welcome-file-list>
    <welcome-file>PushUrl.html</welcome-file>
  </welcome-file-list>

</web-app>

appengine-web.xml


 <application>pushurl</application>
 <version>1</version>

 <!-- Configure java.util.logging -->
 <system-properties>
  <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/>
 </system-properties>
 <sessions-enabled>true</sessions-enabled>


applicationContext.xml



 <security:http auto-config="true">
  <security:intercept-url pattern="/**/users.rpc" access="ROLE_USER"/>
  <security:intercept-url pattern="/**/categories.rpc" access="ROLE_ADMIN"/>
  <security:intercept-url pattern="/css/**" filters="none"/>
     <security:intercept-url pattern="/login.jsp*" filters="none"/>
     <security:form-login login-page='/login.jsp'  />
    </security:http>


 <security:authentication-manager>
  <security:authentication-provider>

    <security:user-service>
      <security:user name="jimi" password="jimi"
            authorities="ROLE_USER, ROLE_ADMIN" />
      <security:user name="bob" password="bob"
            authorities="ROLE_USER" />
    </security:user-service>
  </security:authentication-provider>
</security:authentication-manager>

dispatcher-servlet.xml




 <bean  class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
  <property name="mappings">
   <value>
   /**/users.rpc=userService
   /**/categories.rpc=categoryService
   </value>
  </property>
 </bean>
 <bean id="userController" class="com.beda.pushurl.server.GwtRpcController">
  <property name="remoteService" ref="userService">

  </property>
 </bean>
 <bean id="userService" class="com.beda.pushurl.server.UserServiceImpl" >
    <property name="userDAO" ref="myUserDAO"></property>
 </bean>
 <bean id="categoryService" class="com.beda.pushurl.server.CategoryServiceImpl">
  <property name="categoryDAO" ref="myCategoryDAO"></property>
 </bean>


 <bean id="myUserDAO" class="com.beda.pushurl.server.dao.UserDAOImpl">

 </bean>
 <bean id="myCategoryDAO" class="com.beda.pushurl.server.dao.CategoryDAOImpl">
 </bean>