Alternative not injected

[jorgemoralespou_2]

Hi,

I have a project consisting of 3 artifacts:

• Interface definition (Logger)
• Implementation (defined with @Alternative): AlternativeLogger
• Service, with Bean component (with injection of Logger interface) and default implementation of interface: DefaultLogger.

In the service, I have set in the service artifact's bean.xml the alternative to use, but it is not used. It always uses the default implementation, that is bundled within same jar file. Dependencies are correctly set. And in log traces, there seems to be some logs saying that the alternative is found, but it does not get correctly injected:

09:14:11,458 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000103 Enabled alternatives for Manager
Enabled alternatives: [<class>com.example.switchyard.cdi_alternative_alternative.AlternativeLogger</class> in vfs:/content/cdi-alternative-injected-0.0.1-SNAPSHOT.jar/META-INF/beans.xml@5] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0

There is a JIRA opened for this: [SWITCHYARD-2058] SwitchYard not injecting an alternative CDI Bean - JBoss Issue Tracker

Linked in the JIRA there is a reproducer.

Am I missing something?

[kcbabo]

This looks like an EAP issue and not something specific to SwitchYard.  Have you tested injection of alternatives in different modules with a vanilla Java EE application?

[jorgemoralespou_2]

Hi keith,

Nope, I haven't tested with plain vanilla Java EE. I suspected this worked, as it has been around for some time now. I'll try to test and come back to you.

Also a note, in Junit tests it does work.

I have updated the reproducer to have another Alternative Bean defined in same jar, so Service Bean as 2 injections, with 2 alternative beans, one defined in same jar, and the other defined in a separate jar. Output is the following:

When run in EAP:

14:17:25,017 INFO  [stdout] (Camel (camel-38) thread #43 - file:///tmp) Default: Jorge
14:17:25,018 INFO  [stdout] (Camel (camel-38) thread #43 - file:///tmp) AternativePrinter: Jorge

When run in JUnit

Alternative: Jorge
AternativePrinter: Jorge

[kcbabo]

Yeah, I think this has to do with visibility of modules during CDI discovery/injection.  It makes sense that it works in the test environment since all dependencies are wide open on the build class path.

[jorgemoralespou_2]

Hi Keith,

Maybe you are right. I have used jboss-cdi-alternative quickstart and added my alternative and it does not get picked either.

15:52:00,561 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-2) JBAS015876: Starting deployment of "jboss-cdi-alternative.war" (runtime-name: "jboss-cdi-alternative.war")
15:52:03,610 DEBUG [org.jboss.weld.deployer] (MSC service thread 1-2) Found beans.xml: "/content/jboss-cdi-alternative.war/WEB-INF/beans.xml"
15:52:06,297 INFO  [org.jboss.weld.deployer] (MSC service thread 1-1) JBAS016002: Processing weld deployment jboss-cdi-alternative.war
15:52:06,302 DEBUG [org.switchyard] (MSC service thread 1-1) Ignoring deployment unit 'jboss-cdi-alternative.war' as it is not recognized as being a SwitchYard Application.
15:52:07,313 INFO  [org.jboss.weld.deployer] (MSC service thread 1-2) JBAS016005: Starting Services for CDI deployment: jboss-cdi-alternative.war
15:52:08,037 INFO  [org.jboss.weld.deployer] (MSC service thread 1-2) JBAS016008: Starting weld service for deployment jboss-cdi-alternative.war
15:52:08,083 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000103 Enabled alternatives for Manager
Enabled alternatives: [<class>com.example.switchyard.cdi_alternative_alternative.AlternativeLogger</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@22, <class>org.jboss.as.quickstarts.cdi.alternative.TaxImpl_2</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@21] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: [<class>com.example.switchyard.cdi_alternative_alternative.AlternativeLogger</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@22, <class>org.jboss.as.quickstarts.cdi.alternative.TaxImpl_2</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@21] []
15:52:08,084 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000104 Enabled decorator types for Manager
Enabled alternatives: [<class>com.example.switchyard.cdi_alternative_alternative.AlternativeLogger</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@22, <class>org.jboss.as.quickstarts.cdi.alternative.TaxImpl_2</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@21] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: []
15:52:08,085 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000105 Enabled interceptor types for Manager
Enabled alternatives: [<class>com.example.switchyard.cdi_alternative_alternative.AlternativeLogger</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@22, <class>org.jboss.as.quickstarts.cdi.alternative.TaxImpl_2</class> in vfs:/content/jboss-cdi-alternative.war/WEB-INF/beans.xml@21] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: []
15:52:08,086 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000103 Enabled alternatives for Manager
Enabled alternatives: [] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: [] []
15:52:08,087 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000104 Enabled decorator types for Manager
Enabled alternatives: [] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: []
15:52:08,087 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000105 Enabled interceptor types for Manager
Enabled alternatives: [] []
Registered contexts: [interface javax.inject.Singleton, interface javax.enterprise.context.RequestScoped, interface javax.enterprise.context.ApplicationScoped, interface javax.enterprise.context.SessionScoped, interface javax.enterprise.context.ConversationScoped, interface javax.enterprise.context.Dependent]
Registered beans: 0
: []
15:52:08,286 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.validator.ValidatorFactory] with qualifiers [@Default]
15:52:08,287 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.http.HttpSessionContext
15:52:08,289 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.inject.spi.InjectionPoint] with qualifiers [@Default]
15:52:08,291 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-javax.enterprise.context.Conversation
15:52:08,293 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.bound.BoundRequestContext
15:52:08,294 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.bound.BoundConversationContext
15:52:08,294 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.RequestContext
15:52:08,295 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.ejb.EjbRequestContext
15:52:08,297 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.event.Event] with qualifiers [@Default]
15:52:08,298 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.http.HttpConversationContext
15:52:08,300 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.transaction.UserTransaction] with qualifiers [@Default]
15:52:08,300 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.bound.BoundSessionContext
15:52:08,302 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [java.security.Principal] with qualifiers [@Default]
15:52:08,303 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Managed Bean [class org.jboss.as.quickstarts.cdi.alternative.Demo] with qualifiers [@Any @Default]
15:52:08,304 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.http.HttpRequestContext
15:52:08,305 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.DependentContext
15:52:08,307 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.validator.Validator] with qualifiers [@Default]
15:52:08,307 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.SingletonContext
15:52:08,308 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-jboss-cdi-alternative.war/content/jboss-cdi-alternative.war/WEB-INF/classes-Built-in-org.jboss.weld.context.ApplicationContext
15:52:08,308 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Managed Bean [class org.jboss.as.quickstarts.cdi.alternative.DefaultLogger] with qualifiers [@Any @Default]
15:52:08,310 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Managed Bean [class org.jboss.as.quickstarts.cdi.alternative.TaxImpl_1] with qualifiers [@Any @Default]
15:52:08,314 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Managed Bean [class org.jboss.as.quickstarts.cdi.alternative.TaxImpl_2] with qualifiers [@Any @Default]
15:52:08,317 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.inject.Instance] with qualifiers [@Default]
15:52:08,318 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.http.HttpRequestContext
15:52:08,319 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.inject.spi.InjectionPoint] with qualifiers [@Default]
15:52:08,319 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.bound.BoundConversationContext
15:52:08,320 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.DependentContext
15:52:08,321 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.inject.Instance] with qualifiers [@Default]
15:52:08,322 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.ejb.EjbRequestContext
15:52:08,323 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.http.HttpConversationContext
15:52:08,324 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [java.security.Principal] with qualifiers [@Default]
15:52:08,325 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.ApplicationContext
15:52:08,325 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Implicit Bean [javax.enterprise.event.Event] with qualifiers [@Default]
15:52:08,326 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-javax.enterprise.context.Conversation
15:52:08,326 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.bound.BoundRequestContext
15:52:08,327 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.RequestContext
15:52:08,327 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.validator.ValidatorFactory] with qualifiers [@Default]
15:52:08,328 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.http.HttpSessionContext
15:52:08,328 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.SingletonContext
15:52:08,329 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.validator.Validator] with qualifiers [@Default]
15:52:08,329 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: Built-in Bean [javax.transaction.UserTransaction] with qualifiers [@Default]
15:52:08,329 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000106 Bean: org.jboss.weld.bean-org.jboss.as.weld.deployment.WeldDeployment.additionalClasses-Built-in-org.jboss.weld.context.bound.BoundSessionContext
15:52:08,333 DEBUG [org.jboss.weld.Bootstrap] (MSC service thread 1-2) WELD-000100 Weld initialized. Validating beans
15:52:08,543 INFO  [org.jboss.web] (ServerService Thread Pool -- 60) JBAS018210: Register web context: /jboss-cdi-alternative
15:52:52,729 ERROR [org.jboss.remoting.remote.connection] (Remoting "testbed:MANAGEMENT" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received an invalid message length of 1195725856
15:52:53,270 INFO  [org.jboss.as.server] (HttpManagementService-threads - 34) JBAS018559: Deployed "jboss-cdi-alternative.war" (runtime-name : "jboss-cdi-alternative.war")
15:53:19,478 ERROR [org.jboss.remoting.remote.connection] (Remoting "testbed:MANAGEMENT" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received an invalid message length of 1195725856
15:54:52,468 ERROR [org.jboss.remoting.remote.connection] (Remoting "testbed:MANAGEMENT" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received an invalid message length of 1195725856
15:54:59,374 ERROR [org.jboss.remoting.remote.connection] (Remoting "testbed:MANAGEMENT" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received an invalid message length of 1195725856
15:55:26,716 INFO  [stdout] (http-/0.0.0.0:8084-1) Default: PRINT MESSAGE

Now the problem is that I do not know if it has something to do with visibility (I'll add export to my module) or scope.

I'll ask in AS forum.

[jorgemoralespou_2]

Hi Again,

It seems that it is possible from JBoss AS 7.2 onwards:

https://docs.jboss.org/author/display/AS72/CDI+Reference

It is just a matter of including meta-inf when importing the dependency. I have updated the reproducer, and now it works fine.

Should I close the JIRA, or you close it as "not a bug"?

Thanks.

[kcbabo]

Thanks for tracking that down.  Issue has been closed with a note to check the forum thread for your resolution.