Sub resource locator failing after upgrade to 2.3.1

I have some services located through a resource locator class like this:

@Path("/platform")
public interface PlatformServiceLocator {

@Path("/users/

{user}")
public UserRestService getUserService(
@HeaderParam("entity")
String entity,
@HeaderParam("ticket")
String ticket,
@PathParam("user")
String userId
);
}

@Path("/users")
public interface UserRestService extends BaseUserService { .............. }

public interface BaseUserService extends BaseCrudService<OhaUserModel>{


@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("data/ada/{user}

")
public OhaUserModel getUserDataByAdaId(
@PathParam("user")
String adaId);
}

Invoking the URL /platform/users/89080/users/data/ada/jsanchez110 was working with version 2.2.3 but not with 2.3.1. I get this error:

2012-02-07 20:16:56,314 WARN [org.jboss.resteasy.core.SynchronousDispatcher] (ajp-127.0.0.1-8009-1) Unknown exception while executing GET /platform/users/89080/users/data/ada/jsanchez110
java.lang.ArrayIndexOutOfBoundsException: 0
at org.jboss.resteasy.util.Types.getImplementingMethod(Types.java:156)
at org.jboss.resteasy.core.ResourceMethodRegistry.findAnnotatedInterfaceMethod(ResourceMethodRegistry.java:139)
at org.jboss.resteasy.core.ResourceMethodRegistry.findAnnotatedMethod(ResourceMethodRegistry.java:188)
at org.jboss.resteasy.core.ResourceMethodRegistry.processMethod(ResourceMethodRegistry.java:204)
at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:125)
at org.jboss.resteasy.core.ResourceLocator.invokeOnTargetObject(ResourceLocator.java:134)
at org.jboss.resteasy.core.ResourceLocator.invoke(ResourceLocator.java:91)
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
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.ajp.AjpProcessor.process(AjpProcessor.java:436)
at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:384)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:662)