IllegalArgumentException: The servlets named [AdminController] and [muShag.Private.controller.AdminController] are both mapped to the url-pattern [duplicate] - eclipse

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java.lang.IllegalArgumentException: The servlets named [X] and [Y] are both mapped to the url-pattern [/url] which is not permitted
(7 answers)
Closed 7 years ago.
I created an application in JAVA 7 with Tomcat 7 in Eclipse Juno.It was running perfectly at that time but after some days it stopped working. now whenever i am trying to run that application it shows error as:
SEVERE: A child container failed during start java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/MuShag]]
at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source) at
java.util.concurrent.FutureTask.get(Unknown Source) at
org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
at
org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800)
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at
org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at
org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at
java.util.concurrent.FutureTask.run(Unknown Source) at
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at
java.lang.Thread.run(Unknown Source) Caused by:
org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/MuShag]]
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
... 7 more Caused by: java.lang.IllegalArgumentException: The
servlets named [AdminController] and
[muShag.Private.controller.AdminController] are both mapped to the
url-pattern [/AdminController] which is not permitted at
org.apache.catalina.deploy.WebXml.addServletMapping(WebXml.java:335)
at
org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2412)
at
org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2125)
at
org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2080)
at
org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2073)
at
org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2073)
at
org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2073)
at
org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1300)
at
org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
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:5179)
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 7 more 26 Jul, 2013 9:36:50 PM
Now how can handle these errors. after surfing too much at some place i got a way by adding commons-looging.jar, but it doesnot worked.

Answer 1

The error message says it all:
The servlets named [AdminController] and [muShag.Private.controller.AdminController] are both mapped to the url-pattern [/AdminController] which is not permitted.
Fix your web.xml or your annotations so that those two servlets are not mapped to the same url-pattern, or so that only one of those servlets is defined.