title: Tomcat7 fail to start on eclipse indigo
body: <p>after declaring New Server in eclipse and run it .. tomcat 7 fails to start and print this in the console :</p>
  
  <pre><code>Starting Servlet Engine: Apache Tomcat/7.0.12
  java.lang.NoSuchMethodError: javax.servlet.ServletContext.getSessionCookieConfig()Ljavax/servlet/SessionCookieConfig;
      at org.apache.catalina.deploy.WebXml.configureContext(WebXml.java:1281)
      at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1332)
      at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:882)
      at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:317)
      at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
      at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5081)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
      at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:774)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
      at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:620)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
  </code></pre>