NoClassDefFoundError ProcessingException while migrating from jersey 1.x to jersey 2.x ( 2.8 )

Question

I developed a web service application which was working fine with jersey 1.x ( 1.16 ) I recently tried to migrate to latest stable jersey version 2.8

I deleted all j

Answer 1

Exception you are getting is happening because you downloaded "javax.ws.rs-api-2.0-m09.jar" this jar doesn't have ProcessingException download the latest one

Class not foundCaused by: java.lang.NoClassDefFoundError: javax/ws/rs/ProcessingException

Download this jar javax.ws.rs-api-2.0.jar

    javax.ws.rs
    javax.ws.rs-api
    2.0

Secondly I think you are missing a part from your web.xml

Try adding these things to your web.xml as appropriate for you application. If you don't have this section this may also lead to SEVERE: A child container failed during start....

This is what you are missing. Please note that param-value is the list of packages that contain your rest services.

    jersey-serlvet
    org.glassfish.jersey.servlet.ServletContainer
    
        jersey.config.server.provider.packages;org.codehaus.jackson.jaxrs
        com.your.package.for.rest
    
    1

To get latest Jackson use this Link

    com.fasterxml.jackson.jaxrs
    jackson-jaxrs-json-provider
    2.3.3