A child container failed during start java util concurrent ExecutionException

Question

I tried to create run a basic JSP and ran into the following error   I saw that other people have had similar problems  however  I haven t been able to find  or properly implement  a solution to the problem at hand yet   Any help would be appreciated         SEVERE  A child container failed during start java util concurrent ExecutionException  org apache catalina LifecycleException  Failed to start component  StandardEngine Catalina  StandardHost localhost  StandardContext  SimpleServletProject       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  SimpleServletProject       at org apache catalina util LifecycleBase start LifecycleBase java 154          6 more Caused by  java lang NoClassDefFoundError  HttpServletRequest     at java lang Class getDeclaredMethods0 Native Method      at java lang Class privateGetDeclaredMethods Class java 2693      at java lang Class getDeclaredMethods Class java 1967      at org apache catalina util Introspection getDeclaredMethods Introspection java 127      at org apache catalina startup WebAnnotationSet loadMethodsAnnotation WebAnnotationSet java 287      at org apache catalina startup WebAnnotationSet loadApplicationServletAnnotations WebAnnotationSet java 140      at org apache catalina startup WebAnnotationSet loadApplicationAnnotations WebAnnotationSet java 65      at org apache catalina startup ContextConfig applicationAnnotationsConfig ContextConfig java 415      at org apache catalina startup ContextConfig configureStart ContextConfig java 892      at org apache catalina startup ContextConfig lifecycleEvent ContextConfig java 386      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 5380      at org apache catalina util LifecycleBase start LifecycleBase java 150          6 more Caused by  java lang ClassNotFoundException  HttpServletRequest     at org apache catalina loader WebappClassLoader loadClass WebappClassLoader java 1720      at org apache catalina loader WebappClassLoader loadClass WebappClassLoader java 1571          20 more  Jan 22  2015 9 04 06 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 22  2015 9 04 06 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 22  2015 9 04 06 PM org apache coyote AbstractProtocol pause INFO  Pausing ProtocolHandler   http-bio-8080   Jan 22  2015 9 04 06 PM org apache coyote AbstractProtocol pause INFO  Pausing ProtocolHandler   ajp-bio-8009   Jan 22  2015 9 04 06 PM org apache catalina core StandardService stopInternal INFO  Stopping service Catalina Jan 22  2015 9 04 06 PM org apache coyote AbstractProtocol destroy INFO  Destroying ProtocolHandler   http-bio-8080   Jan 22  2015 9 04 06 PM org apache coyote AbstractProtocol destroy INFO  Destroying ProtocolHandler   ajp-bio-8009

User · Answer

Faced the same issue  Changed the JRE to the correct 1 8 version and do a maven clean and build resolve the issue  You may need to change the Project Facet and verify the correct path

User · Answer

I faced similar issue with similar logs  I was using JDK 1 6 with apache tomcat 7  Setting java home to 1 7 resolved the issue

User · Answer

check if you JAVA HOME is set to 1 7 or below  because tomcat 7 is not compatible with jdk 1 8   This worked for me

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I have observed a similar issue in my project  The issue was solved when the jar with the missing class definition was pasted into the lib directory of tomcat

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Added AWS dependency and had this error  When I remove it from pom the error is gone  Probably you might have the same situation

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You must have packaged the servlet-api jar along with the other libraries in your war file  You can verify this by opening up your war file and navigating to the WEB-INF lib folder    Ideally  you should not provide the servlet-api jar  The container  in your case Tomcat  is responsible for providing it at deploy time to your application  If you try to provide it as well  then issues arise due to version mismatch etc  Best practise is to just avoid packaging it  Remove it from the WEB-INF lib   Additional Information  If you are using maven for your packaging  then simply add the provided tag with the dependency and maven will make sure not to package it in the final war file  Something like   lt dependency gt       lt artifact gt         lt group gt           lt version gt           lt scope gt provided lt  scope gt   lt   lt dependency gt

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Delete the project named Servers  or Servers1  Servers2 which contains your server xml   find it in Package Explorer workspace  Remove server from Eclipse   Go to Window  gt  Preferences  gt  Server  gt  Runtime Environment  here remove the server your are using from eclipse and add it again doing this will create a new Server project folder in Eclipse    Remove server from Project   Also remove the server in your project Build path  gt  configuration path  gt  Java Build path  and add again  now you got a fresh Server project which will not have Multiple Context on its server xml  only deleting duplicate path in server xml solved the existing issue but still server dint start  by doing this Server started Apache Tomcat v7  and  worked normal And I don t know whether this is good practice or not  I am a starter in programming

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This is what worked for me   1  add commons-logging jar to the WEB-INF lib folder  2  Add this jar as a maven dependency  e g  add this to the pom xml      lt dependency gt       lt groupId gt commons-logging lt  groupId gt       lt artifactId gt commons-logging lt  artifactId gt       lt version gt 1 2 lt  version gt    lt  dependency gt    3  Maven install  4  Run the server   Hope it helps

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This issue might also be caused by a broken Maven repository   I observe the SEVERE  A child container failed during start message from time to time when working with Eclipse  My Eclipse workspace has several projects  Some of the projects have common external dependencies  If Maven repository is empty  or I add new dependencies into pom xml files   Eclipse starts downloading libraries specified in pom xml into Maven repository  And Eclipse does that in parallel for several projects in the workspace  It might happen that several Eclipse threads would be downloading the same file simultaneously into the same place in Maven repository  As a result  this file becomes corrupted   So  this is how you could resolve the issue    Close your Eclipse  If you know which specific jar-file is broken in Maven repository  then delete that file  If you do not know which file is broken in Maven repository  then delete the whole repository  rm -rf  HOME  m2   For each project  run mvn package in the command line  It is important to run the command for each project one-by-one  not in parallel  thus  you ensure that only one instance of Maven runs each time  Open your Eclipse

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I faced similar issue and it was caused because I had written WebServlet Path in the  java file as well as in the web xml   Removing it from any one location works fine for me   In the  java file   WebServlet   index1 jsp     and in web xml   lt servlet gt       lt servlet-name gt Logout lt  servlet-name gt       lt servlet-class gt tpc Logout lt  servlet-class gt   lt  servlet gt   lt servlet-mapping gt       lt servlet-name gt Logout lt  servlet-name gt       lt url-pattern gt  index1 jsp lt  url-pattern gt   lt  servlet-mapping gt

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download commons-logging-1 1 1 jar  Go to Your project build path  configure build path  java build path  Add external jars   add commons-logging-1 1 1 jar click on apply  ok Go to project  properties  Deployment Assembly  Click on add Java build path entries  next  select commons logging jar ok  apply  ok   Delete server clean ur proejct   add server  Run your project

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Some time this problem occur due to incompatible java version and tomcat version Choose the compatible version of both

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Your webapp has servletcontainer specific libraries like servlet-api jar file in its  WEB-INF lib  This is not right   Remove them all    The  WEB-INF lib should contain only the libraries specific to the webapp  not to the servletcontainer  The servletcontainer  like Tomcat  is the one who should already provide the servletcontainer specific libraries    If you supply libraries from an arbitrary servletcontainer of a different make version  you ll run into this kind of problems because your webapp wouldn t be able to run on a servletcontainer of a different make version than where those libraries are originated from   How to solve  In Eclipse  Right click on the project in eclipse Properties -  Java Build Path -  Add library -  Server Runtime Library -  Apache Tomcat  Im Maven Project -  add follwing line in pom xml file   lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt servlet-api lt  artifactId gt               lt version gt   default javax servlet version  lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt javax servlet jsp lt  groupId gt               lt artifactId gt jsp-api lt  artifactId gt               lt version gt   default javax servlet jsp version  lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt

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I try with http servlet and I find this issue when I write duplicated   WebServlet  I encountered with this issue After I remove or change  WebServlet value it is working   1 Class   WebServlet   display   public class MyFirst extends HttpServlet     2 Class   WebServlet   display   public class MySecond extends HttpServlet

[java] A child container failed during start java.util.concurrent.ExecutionException

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