web services - Facing java.lang.IncompatibleClassChangeError -

trying make simple restful service.

i used tutorial link

here link of jar using in program

after follow each , every step ..... face error.

please ...

pom.xml

<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/xsd/maven-4.0.0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.javacodegeeks.enterprise.rest.jersey</groupid> <artifactid>jaxrs-helloworld</artifactid> <version>0.0.1-snapshot</version>  <repositories> <repository> <id>maven2-repository.java.net</id> <name>java.net repository maven</name> <url>http://download.java.net/maven/2/</url> <layout>default</layout> </repository> </repositories> <dependencies>     <dependency>         <groupid>com.sun.jersey</groupid>         <artifactid>jersey-server</artifactid>         <version>1.9</version>     </dependency>  </dependencies> </project> 

web.xml

<?xml version="1.0" encoding="utf-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemalocation="http://java.sun.com/xml/ns/javaee  http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="webapp_id" version="3.0"> <display-name>restful web application</display-name>  <servlet>     <servlet-name>jersey-helloworld-serlvet</servlet-name>     <servlet-class>                  com.sun.jersey.spi.container.servlet.servletcontainer             </servlet-class>     <init-param>          <param-name>com.sun.jersey.config.property.packages</param-name>          <param-value>com.javacodegeeks.enterprise.rest.jersey</param-value>     </init-param>     <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>     <servlet-name>jersey-helloworld-serlvet</servlet-name>     <url-pattern>/rest/*</url-pattern> </servlet-mapping> 

java file

package com.javacodegeeks.enterprise.rest.jersey;  import javax.ws.rs.defaultvalue; import javax.ws.rs.get; import javax.ws.rs.path; import javax.ws.rs.pathparam; import javax.ws.rs.queryparam; import javax.ws.rs.core.response;  @path("/helloworldrest") public class helloworldrest {  @get @path("/{parameter}") public response responsemsg( @pathparam("parameter") string parameter,         @defaultvalue("nothing say") @queryparam("value") string value) {      string output = "hello from: " + parameter + " : " + value;      return response.status(200).entity(output).build(); } 

}

error

mar 28, 2015 6:51:17 pm org.apache.catalina.core.standardwrappervalve invoke severe: servlet.service() servlet [jersey-helloworld-serlvet] in context path [/jaxrs-helloworld] threw exception [servlet execution threw exception] root cause java.lang.incompatibleclasschangeerror: class javax.ws.rs.core.response$status not implement requested interface javax.ws.rs.core.response$statustype     @ com.sun.jersey.spi.container.containerresponse.getstatus(containerresponse.java:599)     @ com.sun.jersey.spi.container.containerresponse$committingoutputstream.commitwrite(containerresponse.java:157)     @ com.sun.jersey.spi.container.containerresponse$committingoutputstream.write(containerresponse.java:134)     @ sun.nio.cs.streamencoder.writebytes(unknown source)     @ sun.nio.cs.streamencoder.implflushbuffer(unknown source)     @ sun.nio.cs.streamencoder.implflush(unknown source)     @ sun.nio.cs.streamencoder.flush(unknown source)     @ java.io.outputstreamwriter.flush(unknown source)     @ java.io.bufferedwriter.flush(unknown source)     @ com.sun.jersey.core.util.readerwriter.writetoasstring(readerwriter.java:191)     @ com.sun.jersey.core.provider.abstractmessagereaderwriterprovider.writetoasstring(abstractmessagereaderwriterprovider.java:128)     @ com.sun.jersey.core.impl.provider.entity.stringprovider.writeto(stringprovider.java:88)     @ com.sun.jersey.core.impl.provider.entity.stringprovider.writeto(stringprovider.java:58)     @ com.sun.jersey.spi.container.containerresponse.write(containerresponse.java:302)     @ com.sun.jersey.server.impl.application.webapplicationimpl._handlerequest(webapplicationimpl.java:1510)     @ com.sun.jersey.server.impl.application.webapplicationimpl.handlerequest(webapplicationimpl.java:1419)     @ com.sun.jersey.server.impl.application.webapplicationimpl.handlerequest(webapplicationimpl.java:1409)     @ com.sun.jersey.spi.container.servlet.webcomponent.service(webcomponent.java:409)     @ com.sun.jersey.spi.container.servlet.servletcontainer.service(servletcontainer.java:558)     @ com.sun.jersey.spi.container.servlet.servletcontainer.service(servletcontainer.java:733)     @ javax.servlet.http.httpservlet.service(httpservlet.java:728)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:305)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:222)     @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:123)     @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:472)     @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:171)     @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:99)     @ org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:947)     @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:118)     @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:408)     @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1009)     @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:589)     @ org.apache.tomcat.util.net.jioendpoint$socketprocessor.run(jioendpoint.java:310)     @ java.util.concurrent.threadpoolexecutor.runworker(unknown source)     @ java.util.concurrent.threadpoolexecutor$worker.run(unknown source)     @ java.lang.thread.run(unknown source)