java lang ClassNotFoundException com sun jersey spi container servlet ServletContainer

Question

I am trying to build a simple hello world application for two days using Jersey   Google app engine  For simple AppEngine project I followed these tutorials and both works just fine https   developers google com appengine docs java gettingstarted creating https   developers google com appengine docs java webtoolsplatform  But now I am trying to add Jersey and following this tutorial http   www vogella com articles REST article html   But server keeps giving me      java lang ClassNotFoundException  com sun jersey spi container servlet ServletContainer   when I add these lines in web xml    lt  xml version  1 0  encoding  UTF-8   gt   lt web-app xmlns xsi  http   www w3 org 2001 XMLSchema-instance  xmlns  http   java sun com xml ns javaee  xmlns web  http   java sun com xml ns javaee web-app 2 5 xsd  xsi schemaLocation  http   java sun com xml ns javaee http   java sun com xml ns javaee web-app 2 5 xsd  id  WebApp ID  version  2 5  gt   lt display-name gt TestServer lt  display-name gt   lt servlet gt       lt servlet-name gt Jersey REST Service lt  servlet-name gt       lt servlet-class gt com sun jersey spi container servlet ServletContainer lt  servlet-class gt       lt init-param gt           lt param-name gt com sun jersey config property packages lt  param-name gt           lt param-value gt com test myproject lt  param-value gt       lt  init-param gt       lt load-on-startup gt 1 lt  load-on-startup gt   lt  servlet gt   lt servlet-mapping gt       lt servlet-name gt Jersey REST Service lt  servlet-name gt       lt url-pattern gt  rest   lt  url-pattern gt   lt  servlet-mapping gt   lt  web-app gt    I have downloaded Jersey JAX-RS 2 1 RI bundle from here and have added all jar files in WEB-INF lib folder as described in tutorial  And even after two days nothing is working  I have searched several times on Google and apparently people who are using Maven have solved it somehow but I am not using Maven neither did the guy who wrote that tutorial    Just to check if even com sun jersey spi container servlet ServletContainer exists in imported  Jersey jars I tried to just write this fully qualified name in Java and let the intellisense finish names but I couldn t get any intellisense after com sun je so my last guess is that there have been some package rearrangement in latest Jersey build and jersey is no longer inside com sun  I am exhausted and I would appreciate any kind of help

User · Answer

A simple workaround is   check whether you have dependencies or libs in deployment assembly of eclipse probably if you are using tomcat   the server might not have identified the libs we are using   in that case specify it explicitly in deployment assembly

User · Answer

I also faced a similar issue  Resolved the problem by going through the step step tutorial from the below link   http   examples javacodegeeks com enterprise-java rest jersey jersey-hello-world-example    The main thing to notice is that the jersey libraries should be placed correctly in TOMCAT WEB-INF lib folder  It is done automatically by the Eclipse settings mentioned in the above link  It will create a WAR file with the dependent JAR Files  Else  you will run into problems with ClassNotFound Exception    apache-tomcat-7 0 56-windows-x64 apache -tomcat-7 0 56 webapps JerseyJSONExample WEB-INF lib   11 23 2014  12 06 AM           130 458 jersey-client-1 9 jar  11 23 2014  12 06 AM           458 739 jersey-core-1 9 jar  11 23 2014  12 06 AM           147 952 jersey-json-1 9 jar  11 23 2014  12 06 AM           713 089 jersey-server-1 9 jar                 4 File s       1 450 238 bytes   The second tutorial explains about how to create a Webservice which produces and consumes JSON output    http   examples javacodegeeks com enterprise-java rest jersey json-example-with-jersey-jackson   Both the links gave a good picture on how things work and save a lot of time

User · Answer

If anyone is trying to build a hello world application using Jersey  I think one of the easiest ways is to follow Jersey documentation    https   jersey github io download html  If you are already using maven  it d take only a few minutes to see the result   I used below   mvn archetype generate -DarchetypeGroupId org glassfish jersey archetypes -DarchetypeArtifactId jersey-quickstart-webapp -DarchetypeVersion 2 26

User · Answer

you need to add jersey-bundle-1 17 1 jar to lib of project   lt servlet gt           lt servlet-name gt Jersey REST Service lt  servlet-name gt           lt servlet-class gt com sun jersey spi container servlet ServletContainer lt  servlet-class gt           lt  --  lt servlet-class gt org glassfish jersey servlet ServletContainer lt  servlet-class gt  -- gt           lt init-param gt               lt param-name gt com sun jersey config property packages lt  param-name gt               lt  --  lt param-name gt jersey config server provider packages lt  param-name gt  -- gt               lt param-value gt package package test lt  param-value gt           lt  init-param gt           lt load-on-startup gt 1 lt  load-on-startup gt       lt  servlet gt

User · Answer

Coming back to the original problem - java lang ClassNotFoundException  com sun jersey spi container servlet ServletContainer  As rightly said above  in JAX 2 x version  the ServletContainer class has been moved to the package  - org glassfish jersey servlet ServletContainer  The related jar is jersey-container-servlet-core jar which comes bundled within the jaxrs-ri-2 2 1 zip  JAX RS can be worked out without mvn by manually copying all jars contained within zip file jaxrs-ri-2 2 1 zip  i have used this version  would work with any 2 x version  to WEB-INF lib folder  Copying libs to right folder makes them available at runtime   This is required if you are using eclipse to build and deploy your project

User · Answer

The same error and wasted 2  hours debugging and trying all options  I was not using the Maven POM  so I could not leverage that solution given by few    Finally the following resolved it  Adding the jars directly to the tomcat lib  NOT WEB-INF lib  folder and restarting the tomcat

User · Answer

I had the same problem as you though I have followed a different guide  http   www mkyong com webservices jax-rs jersey-hello-world-example   The strange part is that  in this guide I have used  I should not have any problem with compatibility between versions  1 x against 2 x  because following the guide you use the jersey 1 8 x on pom xmland in the web xmlyou refer to a class  com sun jersey spi container servlet ServletContainer  as said before of 1 x version  So as I can infer this should be working   My guess is because I m using JDK 1 7 this class does not exist anymore     After  I tried to resolve with the answers before mine  did not helped  I have made changes on the pom xmland on the web xml the error changed to  java lang ClassNotFoundException  org glassfish jersey servlet ServletContainer  Which supposedly should be exist   As result of this error  I found a  new  solution  http   marek potociar net 2013 06 13 jax-rs-2-0-and-jersey-2-0-released   With Maven  archetypes   generate a jersey project  likes this   mvn archetype generate -DarchetypeGroupId org glassfish jersey archetypes -DarchetypeArtifactId jersey-quickstart-webapp -DarchetypeVersion 2 0   And it worked for me

User · Answer

It basically depends on which version jersey you are using  If you are using Jersey ver 1 X X you need to add  Jersey 1 uses  com sun jersey   and Jersey 2 uses org glassfish  on servlet class tag   Also  note that also init-param starting with com sun jersey won t be recognized by Jersey 2   And Add all the jar file into WEB-INF lib folder

User · Answer

If you are using jersey 2 x then you need different configuration in web xml as servlet class is change in it  you can update your  web xml with following configuration        lt servlet gt       lt servlet-name gt myrest lt  servlet-name gt       lt servlet-class gt org glassfish jersey servlet ServletContainer lt  servlet-class gt           lt init-param gt         lt param-name gt jersey config server provider packages lt  param-name gt         lt param-value gt your package path lt  param-value gt       lt  init-param gt       lt init-param gt        lt param-name gt unit WidgetPU lt  param-name gt        lt param-value gt persistence widget lt  param-value gt       lt  init-param gt       lt load-on-startup gt 1 lt  load-on-startup gt     lt  servlet gt     lt servlet-mapping gt       lt servlet-name gt myrest lt  servlet-name gt       lt url-pattern gt  rest   lt  url-pattern gt     lt  servlet-mapping gt

User · Answer

Add this in pom   lt dependency gt       lt groupId gt com sun jersey lt  groupId gt       lt artifactId gt jersey-server lt  artifactId gt       lt version gt 1 17 1 lt  version gt   lt  dependency gt   lt dependency gt       lt groupId gt com sun jersey lt  groupId gt       lt artifactId gt jersey-core lt  artifactId gt       lt version gt 1 17 1 lt  version gt   lt  dependency gt   lt dependency gt       lt groupId gt com sun jersey lt  groupId gt       lt artifactId gt jersey-servlet lt  artifactId gt       lt version gt 1 17 1 lt  version gt   lt  dependency gt

User · Answer

In pom xml file we need to add   lt dependency gt       lt groupId gt com sun jersey lt  groupId gt       lt artifactId gt jersey-core lt  artifactId gt       lt version gt 1 8 lt  version gt   lt  dependency gt

User · Answer

I encountered the same error today although I was using Jersey 1 x  and had the right jars in my classpath  For those who d like to  follow the vogella tutorial to the letter  and use the 1 x jars  you d need to add the jersey libraries to WEB-INF lib folder  This will certainly resolve the problem

User · Answer

You have downloaded Jersey 2  which RI of JAX-RS 2   The tutorial you re referring to uses Jersey 1  Download Jersey 1 17 1 from  here   should be sufficient for you   Jersey 1 uses com sun jersey  and Jersey 2 uses org glassfish jersey hence the exception    Also note that also init-param starting with com sun jersey won t be recognized by Jersey 2   Edit  Registering Resources and Providers in Jersey 2 contains additional info on how to register classes instances in Jersey 2

User · Answer

It s an eclipse setup issue  not a Jersey issue   From this thread ClassNotFoundException  com sun jersey spi container servlet ServletContainer  Right click your eclipse project Properties -  Deployment Assembly -  Add -  Java Build Path Entries -  Gradle Dependencies -  Finish   So Eclipse wasn t using the Gradle dependencies when Apache was starting

User · Answer

try this        org glassfish jersey servlet ServletContainer   on servlet-class

User · Answer

You must replace in your web xml    lt servlet gt       lt servlet-name gt Jersey REST Service lt  servlet-name gt       lt servlet-class gt com sun jersey spi container servlet ServletContainer lt  servlet-class gt       lt init-param gt           lt param-name gt com sun jersey config property packages lt  param-name gt           lt param-value gt com test myproject lt  param-value gt       lt  init-param gt       lt load-on-startup gt 1 lt  load-on-startup gt   lt  servlet gt    for this    lt servlet gt       lt servlet-name gt Jersey REST Service lt  servlet-name gt       lt servlet-class gt org glassfish jersey servlet ServletContainer lt  servlet-class gt       lt init-param gt           lt param-name gt jersey config server provider packages lt  param-name gt           lt param-value gt com test myproject lt  param-value gt       lt  init-param gt       lt load-on-startup gt 1 lt  load-on-startup gt   lt  servlet gt    this is Jersey 2 x uses org glassfish jersey packages instead of com sun jersey  which is used by Jersey 1 x  and hence the exception  Note that also init-param starting with com sun jersey won t be recognized by Jersey 2 x once you migrate to JAX-RS 2 0 and Jersey 2 x  if at any moment you use maven  your pom xml would be this    lt dependency gt       lt groupId gt org glassfish jersey core lt  groupId gt       lt artifactId gt jersey-server lt  artifactId gt       lt version gt 2 X lt  version gt   lt  dependency gt    replace 2 X for your desire version  e g  2 15

User · Answer

We get this error because of build path issue  You should add  Server Runtime  libraries in Build Path    java lang ClassNotFoundException  com sun jersey spi container servlet ServletContainer    Please follow below steps to resolve class not found exception   Right click on project -- gt  Build Path -- gt  Java Build Path -- gt  Add Library -- gt  Server Runtime -- gt  Apache Tomcat v7 0

[eclipse] java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

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