title: Play Framework Error: This exception has been logged with id 6k8i0i7j7
body: <p>I am completed building a website in Play framework. The website is deployed at server. But, I am facing some random occurring issue like this one..</p>
  
  <blockquote>
    <p>Oops, an error occured</p>
    
    <p>This exception has been logged with id 6k8hohpbh.</p>
  </blockquote>
  
  <p>Why is this error occurring?</p>
  
  <p>I got the stack trace that looks like this</p>
  
  <blockquote>
    <p>2014-11-18 11:00:54,810 [http-listener-1(5)] ERROR play - </p>
    
    <p>@6k8hohpb6 Internal Server Error (500)</p>
    
    <p>Execution exception RuntimeException occured : play.mvc.Http$Request
    not found by javassist [134]</p>
    
    <p>play.exceptions.JavaExecutionException: play.mvc.Http$Request not
    found by javassist [134]  at
    play.mvc.ActionInvoker.invoke(ActionInvoker.java:236)     at
    play.server.ServletWrapper$ServletInvocation.execute(ServletWrapper.java:578)
      at play.Invoker$Invocation.run(Invoker.java:282)    at
    play.server.ServletWrapper$ServletInvocation.run(ServletWrapper.java:569)
      at play.Invoker.invokeInThread(Invoker.java:72)     at
    play.server.ServletWrapper.service(ServletWrapper.java:144)   at
    javax.servlet.http.HttpServlet.service(HttpServlet.java:790)  at
    org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
      at
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
      at
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
      at
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
      at
    org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
      at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)   at
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
      at
    org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415)
      at
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
      at
    com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
      at
    com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
      at
    org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
      at
    org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
      at
    org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
      at
    org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
      at
    org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
      at
    org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
      at
    org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
      at
    org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
      at
    org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
      at
    org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
      at
    org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
      at
    org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
      at
    org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
      at
    org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
      at
    org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
      at
    org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
      at java.lang.Thread.run(Thread.java:745) Caused by:
    java.lang.RuntimeException: play.mvc.Http$Request not found by
    javassist [134]   at javassist.runtime.Desc.getClassType(Desc.java:156)
      at javassist.runtime.Desc.getType(Desc.java:122)    at
    javassist.runtime.Desc.getType(Desc.java:78)  at
    controllers.AppController._checkAuthenticityToken(AppController.java:407)
      at play.mvc.ActionInvoker.invoke(ActionInvoker.java:509)    at
    play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:483)
      at
    play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:478)
      at play.mvc.ActionInvoker.handleBefores(ActionInvoker.java:327)     at
    play.mvc.ActionInvoker.invoke(ActionInvoker.java:141)     ... 34 more</p>
  </blockquote>