title: Tomcat v9.0 Server at localhost failed to start in Eclipse
body: <p>I have a problem with Tomcat, it stopped working. I installed Tomcat 3 weeks ago and I have made more than 50 web dynamic projects, maven projects and everythings worked great. And today Tomcat stopped working. For example I make a project in Eclipse and when I try to run it I get this error: Server Tomcat v9.0 Server at localhost failed to start. </p>
  
  <p>I can start Tomcat from Windows services, and I can open <a href="http://localhost:8080/" rel="nofollow noreferrer">http://localhost:8080/</a> page in browser, but I can't start Tomcat in eclipse. Not just for one project, for all projects isn't working. The problem is with Tomcat not with all the apps. I uninstalled and installed it again and do not work. What should I do? Any feedback will be apreciated!</p>
  
  <p><a href="https://i.stack.imgur.com/g0v9h.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/g0v9h.png" alt="enter image description here"></a></p>
  
  <p>And I get this message in the console:</p>
  
  <pre><code>INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
  Jun 25, 2018 5:14:32 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].StandardContext[/LoginRegister]]
      at java.base/java.util.concurrent.FutureTask.report(Unknown Source)
      at java.base/java.util.concurrent.FutureTask.get(Unknown Source)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:949)
      at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
      at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
      at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
      at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
      at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.base/java.lang.reflect.Method.invoke(Unknown Source)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
  Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginRegister]]
      at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
      at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
      at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
      at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
      ... 21 more
  Caused by: java.lang.IllegalArgumentException: The servlets named [LoginRegisterServlet] and [login.register.LoginRegisterServlet] are both mapped to the url-pattern [/loginRegister] which is not permitted
      at org.apache.tomcat.util.descriptor.web.WebXml.addServletMappingDecoded(WebXml.java:329)
      at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:322)
      at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2418)
      at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2095)
      at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1981)
      at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1975)
      at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1975)
      at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1146)
      at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
      at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
      at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4989)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      ... 27 more
  
  Jun 25, 2018 5:14:32 PM org.apache.catalina.core.ContainerBase startInternal
  SEVERE: A child container failed during start
  java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start
      at java.base/java.util.concurrent.FutureTask.report(Unknown Source)
      at java.base/java.util.concurrent.FutureTask.get(Unknown Source)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:949)
      at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.base/java.lang.reflect.Method.invoke(Unknown Source)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
  Caused by: org.apache.catalina.LifecycleException: A child container failed during start
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:958)
      at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
      at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
      at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
      at java.base/java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
      ... 13 more
  
  Jun 25, 2018 5:14:32 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: A child container failed during start
      at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:958)
      at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.base/java.lang.reflect.Method.invoke(Unknown Source)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
  
  Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol pause
  INFO: Pausing ProtocolHandler ["http-nio-8080"]
  Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol pause
  INFO: Pausing ProtocolHandler ["ajp-nio-8009"]
  Jun 25, 2018 5:14:32 PM org.apache.catalina.core.StandardService stopInternal
  INFO: Stopping service [Catalina]
  Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol destroy
  INFO: Destroying ProtocolHandler ["http-nio-8080"]
  Jun 25, 2018 5:14:32 PM org.apache.coyote.AbstractProtocol destroy
  INFO: Destroying ProtocolHandler ["ajp-nio-8009"]
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by org.apache.catalina.loader.WebappClassLoaderBase (file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%209.0/lib/catalina.jar) to field java.io.ObjectStreamClass$Caches.localDescs
  WARNING: Please consider reporting this to the maintainers of org.apache.catalina.loader.WebappClassLoaderBase
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
  WARNING: All illegal access operations will be denied in a future release
  Jun 25, 2018 5:14:33 PM org.apache.catalina.deploy.NamingResourcesImpl cleanUp
  WARNING: Failed to retrieve JNDI naming context for container [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/LoginRegister]] so no cleanup was performed for that container
  javax.naming.NamingException: No naming context bound to this class loader
      at org.apache.naming.ContextBindings.getClassLoader(ContextBindings.java:268)
      at org.apache.catalina.deploy.NamingResourcesImpl.cleanUp(NamingResourcesImpl.java:994)
      at org.apache.catalina.deploy.NamingResourcesImpl.stopInternal(NamingResourcesImpl.java:977)
      at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
      at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5327)
      at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)
      at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:293)
      at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:844)
      at org.apache.catalina.core.ContainerBase.destroyInternal(ContainerBase.java:1046)
      at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
      at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:844)
      at org.apache.catalina.core.ContainerBase.destroyInternal(ContainerBase.java:1046)
      at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
      at org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:553)
      at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
      at org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:860)
      at org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:322)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:686)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.base/java.lang.reflect.Method.invoke(Unknown Source)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
  </code></pre>