[Resteasy-developers] resteasy-cdi problem in wildfly 8CR1

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Hi Resteasy folks,

I've been trying to get my app (which currently runs on jboss 7.1) working
on WIldfly 8 CR1 flush out any issues before Wildfly 8 Final is released.

I hit a problem that I believe to be caused by how resteasy-cdi behaves in
a CDI 1.1 environment.

My app uses a third-party jax-rs library for using Gson to serialize json.
 One of the @Providers in this library is a final class:
http://grepcode.com/file/repo1.maven.org/maven2/net.derquinse/derquinse-common-jaxrs/1.0.34/net/derquinse/common/jaxrs/ByteSourceBodyWriter.java

After switching to Wildfly 8, when I attempt to make a jax-rs request to my
app, the request fails with a UnproxyableResolutionException (full
stacktrace below [1]), because Weld can't create a proxy for
ByteSourceBodyWriter.  And it's true; this class isn't proxyable, and Weld
is doing the right thing by complaining about it.

I determined that this error didn't occur in JBoss AS7 because in CDI 1.0,
there was never a ProcessAnnotatedType event raised for
ByteSourceBodyWriter.  This class lived in a jar without a beans.xml file,
so Weld ignored it.  In CDI 1.1, however, derquinse-common-jaxrs.jar seems
to be treated as an 'implicit' bean archive, and though none of its classes
are annotated with scope annotations (so normally they would not be treated
as CDI beans), ProcessAnnotatedType events are now raised.  And
resteasy-cdi is  picking up these events, detecting that the Providers have
no scope annotations, and adding corresponding annotations
(@ApplicationScoped, in this case) by wrapping the AnnotatedType. Thus,
these classes that weren't intended by the author to be CDI beans are now
being treated as CDI beans.

To be concrete, this log line (and several other similar lines) occur for
wildfly 8, but not for jboss 7.1:

12:08:32,904 DEBUG [org.jboss.resteasy.cdi.ResteasyCdiExtension] (MSC
service thread 1-11) Discovered CDI bean which is a JAX-RS provider
net.derquinse.common.jaxrs.ByteSourceBodyWriter.

This seems to be going against the intended behavior [2] of resteasy-cdi --
it is only supposed to modify @Providers that are definitely CDI beans, and
leave non-CDI @Providers alone, letting them be managed by Resteasy.

I don't know a clean way to fix this.  I think resteasy-cdi needs to
determine if the AnnotatedType is intended to be a CDI bean, instead of
assuming that AnnotatedType events are fired only for CDI Beans.  Perhaps
it can use the type's classloader to determine if it comes from a jar with
a beans.xml defined in it. (Though to be complete, it should also determine
the bean-discovey-mode of the beans.xml, if any.  This sounds like a lot of
work.)

Note 1: for my app, I can get around this problem by using a jboss-all.xml
file [3], but I think this shouldn't be necessary.

Note 2: i'm pretty sure the derquinse-common-jaxrs jar has no
scope-annotated class or session beans, so I'm not sure why it's being
considered as an implicit bean archive.

What are your thoughts?  I can create a jira for you, if you'd like.

Thanks,
Matt Drees

[1]
6:52:56,233 ERROR [org.cru.redegg.loggedErrors] (pool-11-thread-5) error::
java.lang.RuntimeException: Unable to instantiate MessageBodyWriter
at
org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1383)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1310)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1232)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyDeployment.registerProvider(ResteasyDeployment.java:531)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:338)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:241)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:112)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:204)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.core.ManagedServlet.getServlet(ManagedServlet.java:147)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at org.cru.redegg.servlet.RedEggFilter.doFilter(RedEggFilter.java:54)
[red-egg-1-20140114.172822-29.jar:]
at org.cru.redegg.servlet.RedEggFilter.doFilter(RedEggFilter.java:42)
[red-egg-1-20140114.172822-29.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:56)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
org.ccci.maintenance.MaintenanceServletFilter.doFilter(MaintenanceServletFilter.java:71)
[maintenance-filter-server-1-20131218.163934-17.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:56)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at org.ccci.servlet.LogoutFilter.doFilter(LogoutFilter.java:52) [classes:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:56)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:70)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.security.handlers.AuthenticationCallHandler.handleRequest(AuthenticationCallHandler.java:52)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:67)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:70)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:73)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:146)
[undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:164)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:654)
[undertow-core-1.0.0.Beta30.jar:1.0.0.Beta30]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[rt.jar:1.7.0_45]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[rt.jar:1.7.0_45]
at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
Caused by: org.jboss.weld.exceptions.UnproxyableResolutionException:
WELD-001437: Normal scoped bean class
net.derquinse.common.jaxrs.ByteSourceBodyWriter is not proxyable because
the type is final or it contains a final method class
net.derquinse.common.jaxrs.ByteSourceBodyWriter - <unknown
javax.enterprise.inject.spi.Bean instance>.
at
org.jboss.weld.util.Proxies.getUnproxyableClassException(Proxies.java:229)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.util.Proxies.getUnproxyableTypeException(Proxies.java:178)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.util.Proxies.getUnproxyableTypeException(Proxies.java:140)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:214)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:727)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:753)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.util.ForwardingBeanManager.getReference(ForwardingBeanManager.java:61)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.weld.bean.builtin.BeanManagerProxy.getReference(BeanManagerProxy.java:80)
[weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
at
org.jboss.resteasy.cdi.CdiConstructorInjector.construct(CdiConstructorInjector.java:64)
[resteasy-cdi-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyProviderFactory.createProviderInstance(ResteasyProviderFactory.java:2175)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyWriter(ResteasyProviderFactory.java:837)
[resteasy-jaxrs-3.0.6.Final.jar:]
at
org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1378)
[resteasy-jaxrs-3.0.6.Final.jar:]
... 45 more

[2]
http://docs.jboss.org/resteasy/docs/3.0.6.Final/userguide/html/CDI.html#d4e2034
[3]
https://docs.jboss.org/author/display/WFLY8/CDI+Reference#CDIReference-Suppressingimplicitbeanarchives