[jira] [Created] (ARIES-672) Erroneous "no type converter available to convert from type" exception for parameterized types

[Stephen Saucier (JIRA)]

Erroneous "no type converter available to convert from type" exception for 
parameterized types
----------------------------------------------------------------------------------------------

                 Key: ARIES-672
                 URL: https://issues.apache.org/jira/browse/ARIES-672
             Project: Aries
          Issue Type: Bug
          Components: Blueprint
    Affects Versions: 0.3
            Reporter: Stephen Saucier


org.apache.aries.blueprint.container.AggregateConverter.convert(Object, 
ReifiedType) throws an Exception when the ReifiedType has type parameters. The 
issue is in the "isAssignable" function line 416 (of version 0.3) where there 
is a check that "target.size() == 0". This condition can never be true for 
parameterized types, so it is assumed that the object is not assignable.

For example, consider the following

public interface Foo<T> {
    ...
}

public interface Bar {
    ...
}

public class ExtendsFoo implements Foo<Bar> {
    ...
}

public class Baz {
    public void setFoo(Foo<Bar> foo);
}

wiring of an instance of ExtendsFoo to Baz fails with the exception message "no 
type converter available to convert from type: ExtendsFoo to the required type: 
Foo<Bar>"

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