[jboss-jira] [JBoss JIRA] (AS7-3162) RESTEasy: Unknown servet name javax.ws.rs.core.Application when javax.ws.rs.core.Application subclass is on classpath

[Weinan Li (Commented) (JIRA)]

    [ https://issues.jboss.org/browse/AS7-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653866#comment-12653866 ] 

Weinan Li commented on AS7-3162:
--------------------------------

You have mixed up the concept of javax.ws.rs.core.Application and the servlet in servlet-mapping.

The servlet-name in servlet-mapping is an instance of HttpServlet30Dispatcher or HttpServletDispatcher not a class that extends Application.

So I hate the servlet name used in as7 container. It creates confusions :-)

Let me repeat the concept more concisely here:

1. Use @ApplicationPath in your class that extends Application
2. Use servlet-mapping with servlet name "javax.ws.rs.core.Application"(which is actually an HttpServlet30Dispatcher servlet that AS7 has created for you.) 
3. Use the traditional method to configure your application(listeners, context params, servlet, mappings). I've given you an example on this: https://github.com/liweinan/try-resteasy



                
> RESTEasy: Unknown servet name javax.ws.rs.core.Application when javax.ws.rs.core.Application subclass is on classpath 
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: AS7-3162
>                 URL: https://issues.jboss.org/browse/AS7-3162
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 7.1.0.CR1b
>            Reporter: Pavel Janousek
>            Assignee: Weinan Li
>            Priority: Blocker
>
> I've deployment like this:
> {code}
> @Deployment
> public static Archive<?> deploy() {
> 	WebArchive war = ShrinkWrap.create(WebArchive.class, "jaxrsnoap.war");
> 	war.addPackage(HttpRequest.class.getPackage());
> 	war.addClasses(ApplicationTestCase.class, ApplicationInvalid1.class);
> 	war.addAsWebInfResource(
> 			WebXml.get("<servlet-mapping>\n"
> 					+ "        <servlet-name>javax.ws.rs.core.Application</servlet-name>\n"
> 					+ "        <url-pattern>/myjaxrs/*</url-pattern>\n"
> 					+ "</servlet-mapping>\n" + "\n"), "web.xml");
> 	return war;
> }
> {code}
> This deployment fails during deploying because of "Context [/jaxrsnoap] startup failed due to previous errors: java.lang.IllegalArgumentException: Servlet mapping specifies an unknown servlet name javax.ws.rs.core.Application"
> ApplicationInvalid1 is empty subclass of javax.ws.rs.core.Application like:
> {code}
> public class ApplicationInvalid1 extends Application {
> 	private Set<Class<?>> classes = new HashSet<Class<?>>();
> 	public ApplicationInvalid1() {
> 	}
> 	@Override
> 	public Set<Class<?>> getClasses() {
> 		return classes;
> 	}
> }
> {code}
> There isn't any reference to this class in web.xml or somewhere else. Only class is placed on classpath. If I remove this class from deployment (= change appropriate line to "war.addClasses(ApplicationTestCase.class);", everything will be OK.

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