title: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext
body: <p>can any one help me i wasted 3days in order to fixe this problems without result<br>
  I followed the advice in this<a href="https://stackoverflow.com/questions/18404916/failed-to-start-component-standardenginecatalina-standardhostlocalhost-stan">Stackoverflow</a> answer and deleted the folder tmp0. but I still get the same error.
  the error message ;</p>
  
  <pre><code>SEVERE: A child container failed during start
      java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WebServiceClientNote]]
          at java.util.concurrent.FutureTask.report(FutureTask.java:122)
          at java.util.concurrent.FutureTask.get(FutureTask.java:192)
          at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
          at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
          at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
          at java.util.concurrent.FutureTask.run(FutureTask.java:266)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
          at java.lang.Thread.run(Thread.java:745)
      Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WebServiceClientNote]]
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
          ... 6 more
      Caused by: java.lang.NoClassDefFoundError: Lmetier/Operation;
          at java.lang.Class.getDeclaredFields0(Native Method)
          at java.lang.Class.privateGetDeclaredFields(Class.java:2575)
          at java.lang.Class.getDeclaredFields(Class.java:1908)
          at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
          at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:270)
          at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:139)
          at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:65)
          at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:403)
          at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:879)
          at org.apache.tomee.catalina.OpenEJBContextConfig.configureStart(OpenEJBContextConfig.java:115)
          at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:374)
          at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
          at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
          at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5378)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          ... 6 more
      Caused by: java.lang.ClassNotFoundException: metier.Operation
          at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
          at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
          at org.apache.tomee.catalina.LazyStopWebappClassLoader.loadClass(LazyStopWebappClassLoader.java:129)
          ... 21 more
  
      Jan 24, 2015 7:19:40 PM org.apache.catalina.core.ContainerBase startInternal
      SEVERE: A child container failed during start
      java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
          at java.util.concurrent.FutureTask.report(FutureTask.java:122)
          at java.util.concurrent.FutureTask.get(FutureTask.java:192)
          at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
          at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:739)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:483)
          at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
          at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
      Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
          at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
          at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
          at java.util.concurrent.FutureTask.run(FutureTask.java:266)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
          at java.lang.Thread.run(Thread.java:745)
      Caused by: org.apache.catalina.LifecycleException: A child container failed during start
          at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
          at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          ... 6 more
  
      Jan 24, 2015 7:19:40 PM org.apache.catalina.startup.Catalina start
      SEVERE: The required Server component failed to start so Tomcat is unable to start.
      org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
          at org.apache.catalina.startup.Catalina.start(Catalina.java:689)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:483)
          at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:321)
          at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)
      Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
          at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:739)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          ... 7 more
      Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
          at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          ... 9 more
      Caused by: org.apache.catalina.LifecycleException: A child container failed during start
          at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
          at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
          at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
          ... 11 more
  
      Jan 24, 2015 7:19:40 PM org.apache.coyote.AbstractProtocol pause
      INFO: Pausing ProtocolHandler ["http-bio-8080"]
      Jan 24, 2015 7:19:40 PM org.apache.coyote.AbstractProtocol pause
      INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
      Jan 24, 2015 7:19:40 PM org.apache.catalina.core.StandardService stopInternal
      INFO: Stopping service Catalina
      Jan 24, 2015 7:19:40 PM org.apache.openejb.server.SimpleServiceManager stop
      INFO: Stopping server services
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyApplication
      INFO: Undeploying app: C:\Users\ARAYME.DREAD\workspace\J2EEWorkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\WebServiceClientNote
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyApplication
      INFO: Undeploying app: openejb
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyApplication
      INFO: Undeploying app: C:\Users\ARAYME.DREAD\workspace\J2EEWorkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\ROOT
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyApplication
      INFO: Undeploying app: C:\Users\ARAYME.DREAD\workspace\J2EEWorkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\WebServiceNote
      Jan 24, 2015 7:19:40 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
      SEVERE: The web application [/WebServiceNote] created a ThreadLocal with key of type [org.apache.axiom.util.UIDGenerator$1] (value [org.apache.axiom.util.UIDGenerator$1@4c163e3]) and a value of type [long[]] (value [[J@4a8355dd]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyResource
      INFO: Closing DataSource: My DataSource
      Jan 24, 2015 7:19:40 PM org.apache.openejb.assembler.classic.Assembler destroyResource
      INFO: Closing DataSource: My Unmanaged DataSource
      Jan 24, 2015 7:19:40 PM org.apache.coyote.AbstractProtocol destroy
      INFO: Destroying ProtocolHandler ["http-bio-8080"]
      Jan 24, 2015 7:19:40 PM org.apache.coyote.AbstractProtocol destroy
      INFO: Destroying ProtocolHandler ["ajp-bio-8009"]
  </code></pre>