From: Tang Yong <tangyong_at_cn.fujitsu.com>
Date: Mon, 13 May 2013 20:48:43 +0900

Tom, JWells,

I have a question about @Named(ServerEnvironment.DEFAULT_INSTANCE_NAME)
as following,

[Background]
Assuming that I have a bundle called "AImpl" which implements AEx interface,

@Contract
public interface AEx {
...
}

@Service
public class AImpl implements AEx {
...
@Inject
@Named(ServerEnvironment.DEFAULT_INSTANCE_NAME)
private Config config;
...
}

Then, I create a test for AImpl class which extends
org.glassfish.tests.utils.ConfigApiTest and uses
org.glassfish.tests.utils.Utils to obtain serviceLocator,

public class ATest extends ConfigApiTest {
ServiceLocator serviceLocator = getHabitat();
AEx a = serviceLocator.getService(AEx.class);
...
}

Then, while running the test, I got the following exception,

org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no
object available for injection at
Injectee(requiredType=Config,parent=AImpl,qualifiers={_at_javax.inject.Named(value=default-instance-name)}),
position=-1,optional=false,self=false,unqualified=null,9684505)

Then, I made some investigation and found that once I removed
@Named(ServerEnvironment.DEFAULT_INSTANCE_NAME), test will pass.

Because @Named(ServerEnvironment.DEFAULT_INSTANCE_NAME) is a normal
writing in glassfish admin related comp, So, I have the following
requestions:

1) there is any difference between placing
@Named(ServerEnvironment.DEFAULT_INSTANCE_NAME) and removing the annotation?

2) while using @Named as a qualifier, and using
org.glassfish.tests.utils.Utils to initialize HK2 ServiceLocator env,
the issue will happen. So, I doubted whether having some issue in Utils
class. And I also made a confirmation that backing HK2 Habitat age, eg.
Glassfish 4.0-b36, the exception can not happen.

In addition, My background comes from
org.glassfish.paas.tenantmanager.impl.TenantManagerImpl class and its
dev test while I am trying to bring paas back trunk.

Pl. forgiving long text, because the issue makes me a litter puzzle.

Thanks
--Tang

-- 
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Tang Yong
Senior Engineer
Glassfish Team Developer(OSGi&OSGi-JavaEE)
OSGi Alliance Supporter
Blog: http://osgizone.typepad.com/tangyong/
Nanjing Fujitsu NanDa Software Tec CO.,LTD
http://www.fujitsu.com/cn/fnst
Tel: +86-25-86630566-8310
Fax: +86-25-83317685　　　　　　　　　　　　　　
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