error package javax servlet does not exist

Question

I was trying to implement a login filter in my web app with jsf 2  following this guide   https   stackoverflow com tags servlet-filters info  after I compiled my filter and added the  class in  web-inf classes   as the guide says  the filter worked  but i put the  wrong url to redirect to the login page so i deleted the filter class from the folder  web-inf classes  and tried to compile the project again   but it failed  and since then im getting  package javax servlet does not exist   it is weird because before it was working and i have javax servlet in my pom xml   i tried cleaning the project  but nothing   this is my filter class   package Bean   import java io IOException   import javax servlet Filter  import javax servlet FilterChain  import javax servlet FilterConfig  import javax servlet ServletException  import javax servlet ServletRequest  import javax servlet ServletResponse  import javax servlet annotation WebFilter  import javax servlet http HttpServletRequest  import javax servlet http HttpServletResponse  import javax servlet http HttpSession          Created with IntelliJ IDEA     User  rodrigo    Date  28-04-13    Time  06 54 AM    To change this template use File   Settings   File Templates       WebFilter   Contenido     public class filtro implements Filter         Override     public void init FilterConfig config  throws ServletException              If you have any  lt init-param gt  in web xml  then you could get them            here by config getInitParameter  name   and assign it as field              Override     public void doFilter ServletRequest request  ServletResponse response              FilterChain chain  throws ServletException  IOException           HttpServletRequest req    HttpServletRequest  request          LoginBean user    LoginBean  req getSession   getAttribute  user             if  user    null  amp  amp  user isLoggedIn                     User is logged in  so just continue request              chain doFilter request  response             else                  User is not logged in  so redirect to index              HttpServletResponse res    HttpServletResponse  response              res sendRedirect req getContextPath       Contenido Login xhtml                          Override     public void destroy                If you have assigned any expensive resources as field of            this Filter class  then you could clean close them here            this is the error    Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  5 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  6 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  7 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  8 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  9 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  10 20  error  package javax servlet does not exist  ERROR   Users rodrigo IdeaProjects Frutemu src main java Bean filtro java  11 31  error  package javax servlet annotation does not exist   my pom xml    lt project xmlns  http   maven apache org POM 4 0 0  xmlns xsi  http   www w3 org 2001 XMLSchema-instance      xsi schemaLocation  http   maven apache org POM 4 0 0 http   maven apache org maven-v4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt       lt groupId gt Frutemu lt  groupId gt       lt artifactId gt Frutemu lt  artifactId gt       lt packaging gt war lt  packaging gt       lt version gt 1 0-SNAPSHOT lt  version gt       lt name gt Frutemu Maven Webapp lt  name gt       lt url gt http   maven apache org lt  url gt       lt repositories gt           lt repository gt               lt id gt prime-repo lt  id gt               lt name gt Prime Repo lt  name gt               lt url gt http   repository primefaces org lt  url gt           lt  repository gt       lt  repositories gt       lt dependencies gt           lt dependency gt               lt groupId gt junit lt  groupId gt               lt artifactId gt junit lt  artifactId gt               lt version gt 3 8 1 lt  version gt               lt scope gt test lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt javax ejb lt  groupId gt               lt artifactId gt ejb-api lt  artifactId gt               lt version gt 3 0 lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt org primefaces lt  groupId gt               lt artifactId gt primefaces lt  artifactId gt               lt version gt 3 5 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt org primefaces themes lt  groupId gt               lt artifactId gt all-themes lt  artifactId gt               lt version gt 1 0 9 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt javax faces lt  groupId gt               lt artifactId gt jsf-api lt  artifactId gt               lt version gt 2 0 lt  version gt               lt scope gt compile lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt com sun faces lt  groupId gt               lt artifactId gt jsf-impl lt  artifactId gt               lt version gt 2 0 2-b10 lt  version gt               lt scope gt compile lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt jstl lt  artifactId gt               lt version gt 1 2 lt  version gt           lt  dependency gt           lt  -- MySQL database driver -- gt           lt dependency gt               lt groupId gt mysql lt  groupId gt               lt artifactId gt mysql-connector-java lt  artifactId gt               lt version gt 5 1 21 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt org glassfish web lt  groupId gt               lt artifactId gt el-impl lt  artifactId gt               lt version gt 2 2 1-b04 lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt           lt  -- OpenJPA framework -- gt           lt dependency gt               lt groupId gt org apache openjpa lt  groupId gt               lt artifactId gt openjpa-all lt  artifactId gt               lt version gt 2 2 0 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt com microsoft sqlserver lt  groupId gt               lt artifactId gt sqljdbc4 lt  artifactId gt               lt version gt 4 0 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt net sf jasperreports lt  groupId gt               lt artifactId gt jasperreports lt  artifactId gt               lt version gt 4 1 2 lt  version gt           lt  dependency gt       lt  dependencies gt       lt build gt           lt finalName gt Frutemu lt  finalName gt           lt plugins gt               lt  -- Open Jpa -- gt               lt plugin gt                   lt groupId gt org apache openjpa lt  groupId gt                   lt artifactId gt openjpa-maven-plugin lt  artifactId gt                   lt version gt 2 2 0 lt  version gt                   lt configuration gt                       lt includes gt    model   class lt  includes gt                       lt addDefaultConstructor gt true lt  addDefaultConstructor gt                       lt enforcePropertyRestrictions gt true lt  enforcePropertyRestrictions gt                   lt  configuration gt                   lt executions gt                       lt execution gt                           lt id gt enhancer lt  id gt                           lt phase gt process-classes lt  phase gt                           lt goals gt                               lt goal gt enhance lt  goal gt                           lt  goals gt                       lt  execution gt                   lt  executions gt               lt  plugin gt               lt  -- Plugin para levantar una instancia de Tomcat 7 liviana    nica para este proyecto -- gt               lt plugin gt                   lt groupId gt org apache tomcat maven lt  groupId gt                   lt artifactId gt tomcat7-maven-plugin lt  artifactId gt                   lt version gt 2 0 lt  version gt                   lt configuration gt                       lt url gt http   127 0 0 1 8080 manager text lt  url gt                       lt server gt TomcatServer lt  server gt                       lt path gt  Frutemu lt  path gt                   lt  configuration gt               lt  plugin gt               lt plugin gt                   lt groupId gt org codehaus mojo lt  groupId gt                   lt artifactId gt jasperreports-maven-plugin lt  artifactId gt                   lt executions gt                       lt execution gt                           lt goals gt                               lt goal gt compile-reports lt  goal gt                           lt  goals gt                       lt  execution gt                   lt  executions gt                   lt dependencies gt                       lt  --note this must be repeated here to pick up correct xml validation -- gt                       lt dependency gt                           lt groupId gt net sf jasperreports lt  groupId gt                           lt artifactId gt jasperreports lt  artifactId gt                           lt version gt 4 1 2 lt  version gt                       lt  dependency gt                   lt  dependencies gt               lt  plugin gt           lt  plugins gt       lt  build gt   lt  project gt

User · Answer

The answer provided by  Matthias Herlitzius is mostly correct  Just for further clarity   The servlet-api jar is best left up to the server to manage see here for detail  With that said  the dependency to add may vary according to your server container  For example in Wildfly the dependency would be    lt dependency gt       lt groupId gt org jboss spec javax servlet lt  groupId gt       lt artifactId gt jboss-servlet-api 3 1 spec lt  artifactId gt       lt scope gt provided lt  scope gt   lt  dependency gt    So becareful to check how your container has provided the servlet implementation

User · Answer

I got here with a similar problem with my Gradle build and fixed it in a similar way  Unable to load class hudson model User due to missing dependency javax servlet ServletException  fixed with  dependencies      implementation  javax servlet javax servlet-api 3 0 1

User · Answer

I only put this code in my pom xml and  I executed the command maven install    lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt javax servlet-api lt  artifactId gt       lt version gt 3 0 1 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt

User · Answer

In my case  migrating a Spring 3 1 app up to 3 2 7  my solution was similar to Matthias s but a bit different -- thus why I m documenting it here   In my POM I found this dependency and changed it from 6 0 to 7 0        lt dependency gt           lt groupId gt javax lt  groupId gt           lt artifactId gt javaee-web-api lt  artifactId gt           lt version gt 7 0 lt  version gt           lt scope gt provided lt  scope gt       lt  dependency gt    Then later in the POM I upgraded this plugin from 6 0 to 7 0            lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-dependency-plugin lt  artifactId gt               lt version gt 2 1 lt  version gt               lt executions gt                   lt execution gt                                               lt configuration gt                                                       lt artifactItems gt                               lt artifactItem gt                                   lt groupId gt javax lt  groupId gt                                   lt artifactId gt javaee-endorsed-api lt  artifactId gt                                   lt version gt 7 0 lt  version gt                                   lt type gt jar lt  type gt                               lt  artifactItem gt                           lt  artifactItems gt                       lt  configuration gt                   lt  execution gt               lt  executions gt           lt  plugin gt

User · Answer

The javax servlet dependency is missing in your pom xml  Add the following to the dependencies-Node    lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt javax servlet-api lt  artifactId gt       lt version gt 3 0 1 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt

User · Answer

I needed to import javaee-api as well      lt dependency gt        lt groupId gt javax lt  groupId gt        lt artifactId gt javaee-api lt  artifactId gt        lt version gt 7 0 lt  version gt     lt  dependency gt    Unless I got following error   package javax servlet http does not exist javax servlet annotation does not exist javax servlet http does not exist

User · Answer

maybe doesnt exists javaee-api-7 0 jar  download this jar and on your project right clik   on your project right click build path Configure build path Add external Jars javaee-api-7 0 jar choose Apply and finish

[maven] error: package javax.servlet does not exist

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