REASTEasy Exception

[reham saud]

Hi,
if any one could help me on this, I deployed my web app in JBoss 5
after running my app and tried to login I got resteasy exception
Here is the track trace

 

17:48:56,422 INFO  [ConfigurationBootstrap] Adding scanned @Provider: org.resteasy.plugins.providers.InputStreamProvider
17:48:56,423 INFO  [ConfigurationBootstrap] Adding scanned @Provider: org.resteasy.plugins.providers.StringTextStar
17:48:56,423 INFO  [ConfigurationBootstrap] Adding scanned @Provider: org.resteasy.plugins.providers.DefaultTextPlain
17:48:56,423 INFO  [ConfigurationBootstrap] Adding scanned @Provider: org.resteasy.plugins.providers.JAXBProvider
17:48:56,423 INFO  [ConfigurationBootstrap] Adding scanned @Provider: org.resteasy.plugins.providers.UrlFormEncoder
17:48:56,425 INFO  [ConfigurationBootstrap] Adding scanned resource: com.isonline.RESTful.StudentsAPI
17:48:56,621 ERROR [[Resteasy]] Servlet.service() for servlet Resteasy threw exception
java.lang.AbstractMethodError: org.resteasy.plugins.providers.StringTextStar.isReadable(Ljava/lang/Class;Ljava/lang/reflect/Type;[Ljava/lang/annotation/Annotation;Ljavax/ws/rs/core/MediaType;)Z
    at org.jboss.resteasy.spi.ResteasyProviderFactory.getMessageBodyReader(ResteasyProviderFactory.java:544)
    at org.jboss.resteasy.core.messagebody.ReaderUtility.doRead(ReaderUtility.java:102)
    at org.jboss.resteasy.core.messagebody.ReaderUtility.doRead(ReaderUtility.java:93)
    at org.jboss.resteasy.core.MessageBodyParameterInjector.inject(MessageBodyParameterInjector.java:146)
    at org.jboss.resteasy.core.MethodInjectorImpl.injectArguments(MethodInjectorImpl.java:98)
    at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:121)
    at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:247)
    at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:212)
    at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:202)
    at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:441)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:418)
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:111)
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:206)
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:159)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    at java.lang.Thread.run(Thread.java:680)