Markus Frisch created OWB-956:
---------------------------------

             Summary: DefinitionException when iterateing over instance of 
org.apache.webbeans.inject.instance.InstanceImpl 
                 Key: OWB-956
                 URL: https://issues.apache.org/jira/browse/OWB-956
             Project: OpenWebBeans
          Issue Type: Bug
            Reporter: Markus Frisch


I get a DefinitionException when trying to iterate over an instance of 
org.apache.webbeans.inject.instance.InstanceImpl in the current snapshot of 
TomEE+ (i.e. in own 1.2.4).

What I am trying to do is:

————————8<————————>8————————
@Stateless
public class JobOperator {

    @Inject
    private Instance<MyBatchJob> batchJobs;

…

    private MyBatchJob findMatchingJob(String jobName) {
        MyBatchJob batchJob = null;
        for (MyBatchJob job : batchJobs) {
            if (job.getName().equalsIgnoreCase(jobName)) {
                batchJob = job;
                break;
            }
        }
        if (batchJob == null)
            throw new RuntimeException("There ain’t no Job named '" + jobName + 
"'.");
        return batchJob;
    }
————————8<————————>8————————
MyBatchJob is a common interface implemented by all my BatchJobs.

When this code is running I get the following Exception:

————————8<————————>8————————
org.apache.webbeans.exception.inject.DefinitionException: Unsupported type null
        at org.apache.webbeans.util.ClassUtil.getClazz(ClassUtil.java:950)
        at 
org.apache.webbeans.container.BeanManagerImpl.getEjbOrJmsProxyReference(BeanManagerImpl.java:804)
        at 
org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:740)
        at 
org.apache.webbeans.inject.instance.InstanceImpl.iterator(InstanceImpl.java:270)
        at 
de.nobiscum.rs7030.batch.boundary.JobOperator.findMatchingJob(JobOperator.java:162)
————————8<————————>8————————

I took a look at org.apache.webbeans.inject.instance.InstanceImpl<T> and found 
the following:

————————8<————————>8————————
    public Iterator<T> iterator()
    {
        Set<Bean<?>> beans = resolveBeans();
        List<T> instances = new ArrayList<T>();
        parentCreationalContext.putInjectionPoint(injectionPoint);
        try
        {
            for(Bean<?> bean : beans)
            {
                T instance = (T) 
webBeansContext.getBeanManagerImpl().getReference(bean,null, 
parentCreationalContext);
————————8<————————>8————————

It looks like this function is passing null as the beanType to getReference() 
which in gets handed down to ClassUtil.getClazz() which chokes on that.




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