Java.util.concurrent.ExecutionException Problem Solving Method _java

java.util.concurrent.ExecutionException error message , here is a solution for you to change according to your specific requirements.

Severe:a child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException:Failed to start component [Standardengine[catalina]. Standardhost[localhost]. Standardcontext[/webapp]] at Java.util.concurrent.futuretask$sync.innerget (futuretask.java:222) at Java.util.concurrent.FutureTask.get (futuretask.java:83) at Org.apache.catalina.core.ContainerBase.startInternal ( containerbase.java:1123) at Org.apache.catalina.core.StandardHost.startInternal (standardhost.java:800) at Org.apache.catalina.util.LifecycleBase.start (lifecyclebase.java:150) at org.apache.catalina.core.containerbase$ 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:303) at Java.util.concurrent.FutureTask.run (futuretask.java:138) at java.util.concurrent.threadpoolexecutor$ Worker.runtask (threadpoolexecutor.java:886) at JaVa.util.concurrent.threadpoolexecutor$worker.run (threadpoolexecutor.java:908) at Java.lang.Thread.run ( thread.java:619) caused by:org.apache.catalina.LifecycleException:Failed to start component [Standardengine[catalina ]. Standardhost[localhost]. Standardcontext[/webapp]] at Org.apache.catalina.util.LifecycleBase.start (lifecyclebase.java:154) ... 7 more caused by:java.lang.RuntimeException:Unexpected element value kind in annotation:0 at org.apache.tomcat.util.b Cel.classfile.ElementValue.readElementValue (elementvalue.java:129) at Org.apache.tomcat.util.bcel.classfile.AnnotationEntry.read (annotationentry.java:59) at Org.apache.tomcat.util.bcel.classfile.annotations.<init> (annotations.java:49) at Org.apache.tomcat.util.bcel.classfile.runtimevisibleannotations.<init> (RuntimeVisibleAnnotations.java:51 ) at Org.apache.tomcat.util.bcel.classfile.Attribute.readAttribute (attribute.java:147) at Org.apache.tomcat.util.bcel.classfile.fieldormethod.<init> (Fieldormethod.java:58) at org.apache.tomcat.util.bcel.classfile.method.<init> (method.java:72) at Org.apache.tomcat.util.bcel.classfile.ClassParser.readMethods (classparser.java:268) at Org.apache.tomcat.util.bcel.classfile.ClassParser.parse (classparser.java:128) at Org.apache.catalina.startup.ContextConfig.processAnnotationsStream (contextconfig.java:2118) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2093) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.processAnnotationsFile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.processAnnotationSfile (contextconfig.java:2086) at Org.apache.catalina.startup.ContextConfig.webConfig (contextconfig.java:1293) at Org.apache.catalina.startup.ContextConfig.configureStart (contextconfig.java:878) at Org.apache.catalina.startup.ContextConfig.lifecycleEvent (contextconfig.java:376) 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:5322) at Org.apache.catalina.util.LifecycleBase.start (lifecyclebase.java:150) ...
 7 more May, 2014 6:19:09 PM org.apache.catalina.core.ContainerBase startinternal

Run Eclipse run today Tomcat not start, do not know what, through the investigation found that because SPRINGMVC controller class has a URL error

Problem Solving Method:

1.web.xml, there's been a problem.

Check that the content configured in <url-pattern></url-pattern> is missing "/", "/" represents the current Web application.

@WebFilter ("/*")

2. If it is SPRINGMVC check the Controller class @requestmapping (value = Whether there is an error

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