[jboss-jira] [JBoss JIRA] (WFLY-3511) Invalid class load of embedded interface when a dependency is defined

[Thomas Diesler (JIRA)]

Thomas Diesler created WFLY-3511:
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             Summary: Invalid class load of embedded interface when a dependency is defined
                 Key: WFLY-3511
                 URL: https://issues.jboss.org/browse/WFLY-3511
             Project: WildFly
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Server
    Affects Versions: 8.1.0.Final
            Reporter: Thomas Diesler
            Assignee: Jason Greene


{code}
10:39:38,552 WARN  [org.jboss.gravia.runtime] (MSC service thread 1-8) Error while firing service event REGISTERED for: ServiceState{service.id=41, objectClass=[org.osgi.service.http.HttpService, org.apache.felix.http.api.ExtHttpService]}: java.lang.ClassCastException: org.apache.felix.http.base.internal.service.HttpServiceImpl cannot be cast to org.osgi.service.http.HttpService
	at org.jolokia.osgi.JolokiaActivator$HttpServiceCustomizer.addingService(JolokiaActivator.java:207)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932) [org.osgi.core-5.0.0.jar:]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864) [org.osgi.core-5.0.0.jar:]
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) [org.osgi.core-5.0.0.jar:]
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) [org.osgi.core-5.0.0.jar:]
	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894) [org.osgi.core-5.0.0.jar:]
{code}

Module org.jboss.gravia contains the impl of the HttpService and a dependency on org.osgi.enterprise

{code}
<module xmlns="urn:jboss:module:1.1" name="org.jboss.gravia">
    <properties>
        <property name="jboss.api" value="private"/>
    </properties>

    <resources>
        <resource-root path="gravia-provision-1.1.0.Beta30.jar"/>
        <resource-root path="gravia-repository-1.1.0.Beta30.jar"/>
        <resource-root path="gravia-resolver-1.1.0.Beta30.jar"/>
        <resource-root path="gravia-resource-1.1.0.Beta30.jar"/>
        <resource-root path="gravia-runtime-api-1.1.0.Beta30.jar"/>
        <resource-root path="gravia-runtime-embedded-1.1.0.Beta30.jar"/>
        <resource-root path="org.apache.felix.configadmin-1.8.0.jar"/>
        <resource-root path="org.apache.felix.http.bridge-2.2.1.jar"/>
        <resource-root path="org.apache.felix.log-1.0.1.jar"/>
        <resource-root path="org.apache.felix.metatype-1.0.8.jar"/>
        <resource-root path="org.apache.felix.scr-1.6.2.jar"/>
    </resources>

    <exports>
        <include path="org/jboss/gravia/process"/>
        <include path="org/jboss/gravia/provision"/>
        <include path="org/jboss/gravia/resource"/>
        <include path="org/jboss/gravia/resolver"/>
        <include path="org/jboss/gravia/repository"/>
        <include path="org/jboss/gravia/runtime"/>
    </exports>
    
    <dependencies>
        <module name="javax.api"/>
        <module name="javax.servlet.api"/>
        <module name="org.osgi.core"/>
        <module name="org.osgi.enterprise"/>
        <module name="org.slf4j"/>
    </dependencies>
</module>
{code}

When I use this code in a webapp  

{code}
            ModuleClassLoader classLoader = (ModuleClassLoader) getClass().getClassLoader();
            org.jboss.modules.Module graviaModule = classLoader.getModule().getModuleLoader().loadModule(ModuleIdentifier.create("org.jboss.gravia"));
            org.jboss.modules.Module osgiModule = classLoader.getModule().getModuleLoader().loadModule(ModuleIdentifier.create("org.osgi.enterprise"));
            Class<?> interfClass = loadClass(null, osgiModule.getClassLoader(), "org.osgi.service.http.HttpService");
            Class<?> implClass = loadClass(null, graviaModule.getClassLoader(), "org.apache.felix.http.base.internal.service.HttpServiceImpl");
            if (!interfClass.isAssignableFrom(implClass)) {
                System.out.println("NOT ASSIGNABLE: " + interfClass + " <= " + implClass);
            }
{code}

I get

{code}
10:47:13,264 INFO  [stdout] (MSC service thread 1-7) LOADED: interface org.osgi.service.http.HttpService
10:47:13,265 INFO  [stdout] (MSC service thread 1-7)    using null from ModuleClassLoader for Module "org.osgi.enterprise:main" from local module loader @10fdc382 (finder: local module finder @42e9485 (roots: /Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules,/Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules/system/layers/base))
10:47:13,266 INFO  [stdout] (MSC service thread 1-7)    loaded from => ModuleClassLoader for Module "org.osgi.enterprise:main" from local module loader @10fdc382 (finder: local module finder @42e9485 (roots: /Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules,/Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules/system/layers/base))
10:47:13,268 INFO  [stdout] (MSC service thread 1-7) LOADED: class org.apache.felix.http.base.internal.service.HttpServiceImpl
10:47:13,268 INFO  [stdout] (MSC service thread 1-7)    using null from ModuleClassLoader for Module "org.jboss.gravia:main" from local module loader @10fdc382 (finder: local module finder @42e9485 (roots: /Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules,/Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules/system/layers/base))
10:47:13,268 INFO  [stdout] (MSC service thread 1-7)    loaded from => ModuleClassLoader for Module "org.jboss.gravia:main" from local module loader @10fdc382 (finder: local module finder @42e9485 (roots: /Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules,/Users/tdiesler/git/fabric8poc/itests/smoke/wildfly/target/wildfly-8.1.0.Final/modules/system/layers/base))
10:47:13,269 INFO  [stdout] (MSC service thread 1-7) NOT ASSIGNABLE: interface org.osgi.service.http.HttpService <= class org.apache.felix.http.base.internal.service.HttpServiceImpl
{code}



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