Unpredictable UnsatisfiedResolutionException: WELD-001308 Unable to resolve any beans for Types

[a-st]

Hi,

sometimes we get following error but it's really unpredictable. Sometimes it happens no, once or multiple times a day without any specific reason

org.jboss.weld.exceptions.UnsatisfiedResolutionException: WELD-001308 Unable to resolve any beans for Types: [class de.acme.service.AcmeService]; Bindings: [QualifierInstance{annotationClass=interface javax.enterprise.inject.Default, values={}, hashCode=-83976784}]
    at org.jboss.weld.manager.BeanManagerImpl.getBean(BeanManagerImpl.java:717) [weld-core-1.1.28.Final-redhat-1.jar:1.1.28.Final-redhat-1]
    at org.jboss.weld.bean.builtin.InstanceImpl.get(InstanceImpl.java:102) [weld-core-1.1.28.Final-redhat-1.jar:1.1.28.Final-redhat-1]
    at de.acme.service.AcmeRestService.getAcmeStuff(AcmeRestService.java:52) [classes:]
    at de.acme.service.AcmeRestService$Proxy$$$_WeldSubclass.getAcmeStuff(AcmeRestService$Proxy$$$_WeldSubclass.java) [classes:]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_80]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_80]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_80]
    at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_80]
    at org.jboss.weld.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:85) [weld-core-1.1.28.Final-redhat-1.jar:1.1.28.Final-redhat-1]

Code looks like

package de.acme.service;

import javax.inject.Inject;
import javax.inject.Provider;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;

@Path("/acme")
public class AcmeRestService extends AbstractRestService {

    @Inject
    private Provider<AcmeService> acmeService;

    @GET
    @Path("/{id}/stuff")
    
    public Response getAcmeStuff(@PathParam("id") Long id) {
        return buildResponse(acmeService.get().getAcmeStuff(id));
    }
}

package de.acme.service;

import javax.ejb.Stateless;
import javax.inject.Inject;
import java.util.List;

@Stateless
public class AcmeService implements RapRestClientService {

    @Inject
    private Client<AcmeRestClientInterface> client;

    public List<AcmeDTO> getAcmeStuff(Long id) {
        return client.get().doSomething(id);
    }

}

Kind regards,

Alexander

[mkouba]

Hi Alexander,

please provide more details (environment, deployment structure, ...). A simple test/reproducer would be helpful too.

[a-st]

Hi Martin,

sorry for my late response. We've got it working now by just removing "implements RapRestClientService" from AcmeService class. Our JBoss version is JBoss 7.4.3.Final-redhat-2 (from JBoss EAP 6.3.3). Any hints why the error vanishes after removing "implements RapRestClientService"? In our case RapRestClientService is an empty public interface like:

package de.acme.service; 


public interface RapRestClientService {
}

[mkouba]

Well, it's actually expected. RapRestClientService is assumed to be the business interface of AcmeService session bean (see also 4.9.7 Session Bean’s Business Interface in EJB spec) and so AcmeService is not in the set of bean types (see also http://docs.jboss.org/cdi/spec/1.2/cdi-spec.html#session_bean_types). When removed, AcmeService becomes a session bean with no-interface view and AcmeService is included in the set of bean type, i.e. @Inject Provider<AcmeService> is resolvable. However, I don't understand why the problem happened intermittently.