Tomcat LifecycleException when deploying

Question

I just downloaded the Tomcat 7 0 23 package on my Ubuntu 11 10    I followed the instructions on a Google API website to deploy their example webapp  It basically consists of jar files placed in the WEB-INF lib directory and a web xml file placed in the WEB-INF directory    Yet the app is not automatically deployed and when trying to force the server to deploy it through the manager gui  I get the following message   FAIL - Application at context path  myWebApp could not be started FAIL - Encountered exception org apache catalina LifecycleException            Failed to start component            StandardEngine Catalina  StandardHost localhost  StandardContext  myWebApp     However  the JSP examples provided with Tomcat do work   I have the same problem on Tomcat6   So what did I do wrong   Is this a permission problem    I even try to change the mod of all files to 777

User · Answer

In eclipse     go to Servers view     right click on the tomcat server -  Add or remove programs -  Remove all other projects  Now try to run the project  It should work

User · Answer

Might be super trivial but worth a check prior to waste some time    At my case the mysql service was down   When you have a java app including JPA   Hibernate it is checking the database connection on startup  Just found out by looking into the looks where it had an entity manager error

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I got this error when there was no enough space in server  check logs and server spaces

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Check your WEB-INF web xml file for the servlet Mapping

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There is also change that Eclipse Project is somehow corrupted  Usually case like this Eclipse is added some duplicated  jars in your project and those  jars are usually same as Maven Dependency  jars   If your project look like below example there is huge change that Maven Dependencies are duplicated and should be removed manually    e g   Project Explorer View  src main java src test java spring-boot-vaadin jar spring-aop jar Maven Dependencies  nbsp  nbsp spring-boot-vaadin jar  nbsp  nbsp spring-aop jar etc        and this is cure  -   Project Properties Java Build Path Libraries  Just remove all REPO M2     paths and update project

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Tomcat has different WAR deployment ways  Some work  some don t  Please try the following deployment methods   Automatic  Copy-paste your WAR file into   CATALINA HOME  webapps  A folder with the same name will appear if everything goes right  Manager Application  Upload the WAR file Manager Application  Locate the WAR file   In my case  using the Manager Application  local URL  http   localhost 8080 manager  worked  Whereas deploying using a copy-paste resulted in your error

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For me the problem was caused by checking the project into an other directory from Git  Choosing the same name as the war file solved the problem

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I got this error when deploying a war file to Tomcat  My project required Java 1 8  and it turned out only Java 1 7 was installed  It wasn t immediately obvious from any log file that I could find

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I had this problem  where it just would not deploy on Tomcat   then i removed all  webServlet Annotations from all my servlet code and it deployed successfully

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This might be caused by issue in your code  In my case  for instance  I had Mongo database pointing to my local done this for testing and forgot to update it back  instead of the one on EC2 which is the same machine          where war file is deployed to    How did I figured it out  I had to compare with older version of the code which works fine

User · Answer

I got out of memory error with when facing such phenomena       Caused by  java lang OutOfMemoryError  PermGen space   after freeing some memory  the problem is solved

User · Answer

I done in same way and its working now  Actually web xml file having wrong url-pattern  you can remove one url-pattern either annotation form servlet or web xml It worked for me

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I got stuck and problem solved Don t use the path that is  Map Network Drive   but use the  server folder structure instead

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This means something is wrong with your application configuration or startup    There is always information about that in the logs - check logs catalina out and figure out what is wrong

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I also faced this due to Tomcat version mismatching  According to the documentation  the default tomcat version of Grails 4 0 x is tomcat 8 but in the server that I was using had the tomcat version of 9 0 31  in the build gradle file I changed compile  quot org springframework boot spring-boot-starter-tomcat quot  to provided  quot org springframework boot spring-boot-starter-tomcat quot  and added modified the cache plugin to compile  quot org grails plugins cache quot     exclude group   quot org codehaus groovy quot   module   quot groovy-all quot    under dependencies  block   Cache plugin comes with groovy-all 2 1  It worked like a charm  Strangely  this did not cause any problems when running the app with command grails run-app

User · Answer

Remove the servlet-api jar from build path and just add it on web-inf lib folder and then export the WAR file  it ll work   cheers

[tomcat] Tomcat: LifecycleException when deploying

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