title: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
body: <p>I've jared my latest classes up and included it in my WEB-INF/lib directory and since then I've been getting this error and cannot run my project.</p>
  
  <p>I have tried adding the commons jar into my project also but I'm still getting this issue. If I revert my project back to the original jar I created before adding new classes it works no problem.</p>
  
  <p>Here is the error I'm getting:</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[]]
      at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
      at java.util.concurrent.FutureTask.get(FutureTask.java:111)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
      at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:785)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
      at java.util.concurrent.FutureTask.run(FutureTask.java:166)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:722)
  Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
      ... 7 more
  Caused by: java.lang.NoClassDefFoundError: com/paypal/exception/SSLConfigurationException
      at java.lang.Class.getDeclaredMethods0(Native Method)
      at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
      at java.lang.Class.getDeclaredMethods(Class.java:1810)
      at org.apache.catalina.util.Introspection.getDeclaredMethods(Introspection.java:108)
      at org.apache.catalina.startup.WebAnnotationSet.loadMethodsAnnotation(WebAnnotationSet.java:279)
      at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:141)
      at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:67)
      at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:405)
      at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
      at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
      at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
      at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      ... 7 more
  Caused by: java.lang.ClassNotFoundException: com.paypal.exception.SSLConfigurationException
      at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
      at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
      ... 21 more
  
  Aug 23, 2013 3:01:58 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$Sync.innerGet(FutureTask.java:252)
      at java.util.concurrent.FutureTask.get(FutureTask.java:111)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
      at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:684)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451)
  Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
      at java.util.concurrent.FutureTask.run(FutureTask.java:166)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:722)
  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:785)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      ... 7 more
  
  Aug 23, 2013 3:01:58 PM org.apache.catalina.startup.Catalina start
  SEVERE: Catalina.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:684)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451)
  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:732)
      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:302)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      ... 11 more
  </code></pre>