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Date: Thu, 29 Jan 2009 06:20:59 -0800 (PST)
From: "Sergey Beryozkin (JIRA)" <jira@apache.org>
To: issues@cxf.apache.org
Subject: [jira] Updated: (CXF-1982) Sub-resource locator fails on subtyping
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     [ https://issues.apache.org/jira/browse/CXF-1982?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Beryozkin updated CXF-1982:
----------------------------------

    Fix Version/s: 2.2

> Sub-resource locator fails on subtyping
> ---------------------------------------
>
>                 Key: CXF-1982
>                 URL: https://issues.apache.org/jira/browse/CXF-1982
>             Project: CXF
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 2.1.3, 2.2
>         Environment: Tomcat 5.5.x
>            Reporter: Andrzej Michalec
>            Assignee: Sergey Beryozkin
>             Fix For: 2.1.4, 2.2
>
>         Attachments: beans.xml, web.xml
>
>
> Attempt to use subresource locator with subtyping lead to following probl=
em:
> 2009-01-15 03:31:28 org.apache.cxf.jaxrs.JAXRSServiceFactoryBean checkMet=
hodDispatcher
> WARNING: No resource methods found for resource class org.apache.cxf.jaxr=
s.model.ClassResourceInfo
> 2009-01-15 03:31:28 org.springframework.beans.factory.support.DefaultSing=
letonBeanRegistry destroySingletons
> INFO: Destroying singletons in org.springframework.beans.factory.support.=
DefaultListableBeanFactory@1891d5d: defining beans [cxf,org.apache.cxf.bus.=
spring.BusApplicationListener,org.apache.cxf.bus.spring.BusWiringBeanFactor=
yPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache=
.cxf.bus.spring.BusExtensionPostProcessor,org.apache.cxf.resource.ResourceM=
anager,org.apache.cxf.configuration.Configurer,org.apache.cxf.binding.Bindi=
ngFactoryManager,org.apache.cxf.transport.DestinationFactoryManager,org.apa=
che.cxf.transport.ConduitInitiatorManager,org.apache.cxf.wsdl.WSDLManager,o=
rg.apache.cxf.phase.PhaseManager,org.apache.cxf.workqueue.WorkQueueManager,=
org.apache.cxf.buslifecycle.BusLifeCycleManager,org.apache.cxf.endpoint.Ser=
verRegistry,org.apache.cxf.endpoint.ServerLifeCycleManager,org.apache.cxf.e=
ndpoint.ClientLifeCycleManager,org.apache.cxf.transports.http.QueryHandlerR=
egistry,org.apache.cxf.endpoint.EndpointResolverRegistry,org.apache.cxf.hea=
ders.HeaderManager,org.apache.cxf.catalog.OASISCatalogManager,org.apache.cx=
f.endpoint.ServiceContractResolverRegistry,org.apache.cxf.transport.servlet=
.ServletTransportFactory,org.apache.cxf.jaxrs.JAXRSBindingFactory,jaxRsServ=
er]; root of factory hierarchy
> 2009-01-15 03:31:28 org.springframework.web.context.ContextLoader initWeb=
ApplicationContext
> SEVERE: Context initialization failed
> org.springframework.beans.factory.BeanCreationException: Error creating b=
ean with name 'jaxRsServer': Error setting property values; nested exceptio=
n is org.springframework.beans.PropertyBatchUpdateException; nested Propert=
yAccessExceptions (1) are:
> PropertyAccessException 1: org.springframework.beans.MethodInvocationExce=
ption: Property 'serviceBeans' threw exception; nested exception is java.la=
ng.NullPointerException
> =09at org.springframework.beans.factory.support.AbstractAutowireCapableBe=
anFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1278)
> =09at org.springframework.beans.factory.support.AbstractAutowireCapableBe=
anFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
> =09at org.springframework.beans.factory.support.AbstractAutowireCapableBe=
anFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
> =09at org.springframework.beans.factory.support.AbstractAutowireCapableBe=
anFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
> =09at java.security.AccessController.doPrivileged(Native Method)
> =09at org.springframework.beans.factory.support.AbstractAutowireCapableBe=
anFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
> =09at org.springframework.beans.factory.support.AbstractBeanFactory$1.get=
Object(AbstractBeanFactory.java:264)
> =09at org.springframework.beans.factory.support.DefaultSingletonBeanRegis=
try.getSingleton(DefaultSingletonBeanRegistry.java:221)
> =09at org.springframework.beans.factory.support.AbstractBeanFactory.doGet=
Bean(AbstractBeanFactory.java:261)
> =09at org.springframework.beans.factory.support.AbstractBeanFactory.getBe=
an(AbstractBeanFactory.java:185)
> =09at org.springframework.beans.factory.support.AbstractBeanFactory.getBe=
an(AbstractBeanFactory.java:164)
> =09at org.springframework.beans.factory.support.DefaultListableBeanFactor=
y.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
> =09at org.springframework.context.support.AbstractApplicationContext.fini=
shBeanFactoryInitialization(AbstractApplicationContext.java:729)
> ...=20
> To reproduces on CXF 2.2 use following code snippet (it also fails in CXF=
 2.1.3-stable using @ProduceMime):
> @Produces("text/xml")
> public class RootService {
> =09@GET
> =09@Path("/")
> =09public String getThis() {
> =09=09return "<root>Root service</root>";
> =09}
> =09//@GET disabled to delegate to sub-resource
> =09//when SubService is returned it works fine
> =09//when java.lang.Object is returned it FAILS with Spring autowiring...=
 weird
> =09@Path("/sub")
> =09public SubService getSub() {
> =09=09return new SubService();
> =09}
> }
> -------------
> @Produces("text/xml")
> @XmlRootElement
> public class SubService {
> =09private String value =3D "sub value";
> =09
> =09@GET
> =09public Object getThis() {
> =09=09return this;
> =09}
> =09@GET
> =09@Path("/value")
> =09public String getValue() {
> =09=09return value;
> =09}
> }
> I believe JAX-RS specification clearly points out that
> "[...]implementation MUST dynamically determine the class of object retur=
ned rather than relying on the static sub-resource locator return type sinc=
e the returned instance may be a subclass of the declared type with potenti=
ally different annotations[...]"
> As reference see Jboss example returning java.lang.Object from locator: h=
ttp://www.jboss.org/file-access/default/members/resteasy/freezone/docs/1.0-=
beta-7/userguide/html/JAX-RS_Resource_Locators_and_Sub_Resources.html
> If there are some assumed limitation please provide workarounds for dynam=
ic subresources.
> (Side note: effective behavior is very similar to CXF-1762 suffering from=
 method dispatching problems; maybe solution is similar).

--=20
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