java ee - Error Servlet.init() when using Jersey(RESTful service) + Hibernate -

i have following problem : copy librarys of both hibernate , jersey web-inf/lib in project, when start project in tomcat , type "localhost:8080/de.vogella.jersey.jaxb/ind" error appears :

type exception report  message servlet.init() servlet dummyname threw exception  description server encountered internal error prevented fulfilling request.  exception  javax.servlet.servletexception: servlet.init() servlet dummyname threw exception     org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:472)     org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:99)     org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:947)     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$worker.run(unknown source)     java.lang.thread.run(unknown source) root cause  java.lang.nosuchmethoderror: org.objectweb.asm.classwriter.<init>(z)v     net.sf.cglib.core.debuggingclasswriter.<init>(debuggingclasswriter.java:47)     net.sf.cglib.core.defaultgeneratorstrategy.getclasswriter(defaultgeneratorstrategy.java:30)     net.sf.cglib.core.defaultgeneratorstrategy.generate(defaultgeneratorstrategy.java:24)     net.sf.cglib.core.abstractclassgenerator.create(abstractclassgenerator.java:216)     net.sf.cglib.core.keyfactory$generator.create(keyfactory.java:145)     net.sf.cglib.core.keyfactory.create(keyfactory.java:117)     net.sf.cglib.core.keyfactory.create(keyfactory.java:108)     net.sf.cglib.core.keyfactory.create(keyfactory.java:104)     net.sf.cglib.proxy.enhancer.<clinit>(enhancer.java:69)     org.hibernate.proxy.pojo.cglib.cgliblazyinitializer.getproxyfactory(cgliblazyinitializer.java:111)     org.hibernate.proxy.pojo.cglib.cglibproxyfactory.postinstantiate(cglibproxyfactory.java:43)     org.hibernate.tuple.entity.pojoentitytuplizer.buildproxyfactory(pojoentitytuplizer.java:162)     org.hibernate.tuple.entity.abstractentitytuplizer.<init>(abstractentitytuplizer.java:135)     org.hibernate.tuple.entity.pojoentitytuplizer.<init>(pojoentitytuplizer.java:55)     org.hibernate.tuple.entity.entityentitymodetotuplizermapping.<init>(entityentitymodetotuplizermapping.java:56)     org.hibernate.tuple.entity.entitymetamodel.<init>(entitymetamodel.java:269)     org.hibernate.persister.entity.abstractentitypersister.<init>(abstractentitypersister.java:425)     org.hibernate.persister.entity.singletableentitypersister.<init>(singletableentitypersister.java:109)     org.hibernate.persister.persisterfactory.createclasspersister(persisterfactory.java:55)     org.hibernate.impl.sessionfactoryimpl.<init>(sessionfactoryimpl.java:226)     org.hibernate.cfg.configuration.buildsessionfactory(configuration.java:1218)     pagination.pagination.init(pagination.java:30)     org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:472)     org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:99)     org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:947)     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) 

this web.inf :

<?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" 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">       <display-name>hello jersey</display-name> <servlet>     <servlet-name>dummyname</servlet-name>       <servlet-class>pagination.pagination</servlet-class>    </servlet>  <servlet-mapping>     <servlet-name>dummyname</servlet-name>       <url-pattern>/ind</url-pattern>     </servlet-mapping>        <servlet>     <servlet-name>jersey rest service</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>de.vogella.jersey.jaxb</param-value>     </init-param>     <load-on-startup>0</load-on-startup>    </servlet>     <servlet-mapping>     <servlet-name>jersey rest service</servlet-name>     <url-pattern>/rest/*</url-pattern>    </servlet-mapping>  </web-app> 

and pagination.java :

package pagination;  import java.io.ioexception; import java.io.printwriter; import java.util.iterator; import java.util.list;  import javax.servlet.servletconfig; import javax.servlet.servletexception; import javax.servlet.servletrequest; import javax.servlet.servletresponse; import javax.servlet.http.httpservlet;  import org.hibernate.criteria; import org.hibernate.session; import org.hibernate.sessionfactory; import org.hibernate.cfg.configuration; import org.hibernate.criterion.projections;  import de.vogella.jersey.jaxb.model.segmentdetails;  public class pagination extends httpservlet {  sessionfactory factory;  //init method started public void init(servletconfig config)throws servletexception { factory = new configuration().configure().buildsessionfactory(); system.out.println("factory has been created...."); } //init method end  //service method start public void service(servletrequest req, servletresponse res) throws servletexception,ioexception { int pageindex = 0; int totalnumberofrecords = 0; int numberofrecordsperpage = 4;  string spageindex = req.getparameter("pageindex");  if(spageindex ==null) { pageindex = 1; }else { pageindex = integer.parseint(spageindex); }  session ses = factory.opensession(); int s = (pageindex*numberofrecordsperpage) -numberofrecordsperpage;  criteria crit = ses.createcriteria(segmentdetails.class); crit.setfirstresult(s); crit.setmaxresults(numberofrecordsperpage);  list l = crit.list(); iterator = l.iterator();  printwriter pw = res.getwriter(); pw.println("<table border=1>"); pw.println("<tr>"); pw.println("<th>id</th><th>speed</th><th>reliability</th>"); pw.println("</tr>");  while(it.hasnext()) { segmentdetails p = (segmentdetails)it.next(); pw.println("<tr>"); pw.println("<td>"+p.getsegmentid()+"</td>"); pw.println("<td>"+p.getspeed()+"</td>"); pw.println("<td>"+p.getreliability()+"</td>"); pw.println("</tr>"); }  pw.println("<table>");  criteria crit1 = ses.createcriteria(segmentdetails.class); crit1.setprojection(projections.rowcount());  list l1=crit1.list();  // pw.println(l1.size()); //returns 1, list() used execute query if true returns 1  iterator it1 = l1.iterator();  if(it1.hasnext()) { object o=it1.next(); totalnumberofrecords = integer.parseint(o.tostring()); }  int noofpages = totalnumberofrecords/numberofrecordsperpage; if(totalnumberofrecords > (noofpages * numberofrecordsperpage)) { noofpages = noofpages + 1; }  for(int i=1;i<=noofpages;i++) { string myurl = "ind?pageindex="+i; pw.println("<a href="+myurl+">"+i+"</a>"); }  ses.close(); pw.close();  } //service method end  //destroy method start public void destroy() { factory.close(); } //destroy end } 

please me ! in advance

check version of asm jar. looks 1 using not compatible hibernate.