JavaComponentTypeLoader.load() returns PojoComponentType which isn't a ModelObject

When I tried using a componentType file along w/ my Java impl I got:

org.apache.tuscany.spi.loader.UnrecognizedElementException :

{http://www.osoa.org/xmlns/sca/1.0}

componentType [

{http://www.osoa.org/xmlns/sca/1.0}

componentType ]
........
at org.apache.tuscany.core.loader.LoaderRegistryImpl.load(LoaderRegistryImpl.java:113)
at org.apache.tuscany.core.implementation.java.JavaComponentTypeLoader.loadFromSidefile(JavaComponentTypeLoader.java )
at org.apache.tuscany.core.implementation.java.JavaComponentTypeLoader.load(JavaComponentTypeLoader.java:71)
at org.apache.tuscany.core.implementation.java.JavaComponentTypeLoader.load(JavaComponentTypeLoader.java :47)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.loadComponentType(LoaderRegistryImpl.java:159)
at org.apache.tuscany.core.implementation.java.JavaImplementationLoader.load(JavaImplementationLoader.java :57)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.load(LoaderRegistryImpl.java:92)
at org.apache.tuscany.core.loader.ComponentLoader.loadImplementation(ComponentLoader.java:133)
at org.apache.tuscany.core.loader.ComponentLoader.load (ComponentLoader.java:84)
at org.apache.tuscany.core.loader.ComponentLoader.load(ComponentLoader.java:57)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.load(LoaderRegistryImpl.java:92)
at org.apache.tuscany.core.implementation.composite.CompositeLoader.load (CompositeLoader.java:77)
at org.apache.tuscany.core.implementation.composite.CompositeLoader.load(CompositeLoader.java:52)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.load(LoaderRegistryImpl.java:92)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.load(LoaderRegistryImpl.java:109)
at org.apache.tuscany.core.implementation.composite.CompositeComponentTypeLoader.loadFromSidefile(CompositeComponentTypeLoader.java :64)
at org.apache.tuscany.core.implementation.composite.CompositeComponentTypeLoader.load(CompositeComponentTypeLoader.java:56)
at org.apache.tuscany.core.implementation.composite.CompositeComponentTypeLoader.load (CompositeComponentTypeLoader.java:38)
at org.apache.tuscany.core.loader.LoaderRegistryImpl.loadComponentType(LoaderRegistryImpl.java:159)
at org.apache.tuscany.core.deployer.DeployerImpl.load(DeployerImpl.java :118)
at org.apache.tuscany.core.deployer.DeployerImpl.deploy(DeployerImpl.java:93)
at org.apache.tuscany.core.launcher.LauncherImpl.bootApplication(LauncherImpl.java:193)

The problem wasn't the lack of a loader to load <componentType> elems.....rather, it was this line in JavaComponentTypeLoader:

protected PojoComponentType loadFromSidefile(URL url, DeploymentContext deploymentContext) throws LoaderException

{ return loaderRegistry.load(null, url, PojoComponentType.class, deploymentContext); }

Thie use of 'PojoComponentType.class' as argument is a problem. In LoaderRegistryImpl.load, we do (line 109):

ModelObject mo = load(parent, reader, ctx);
if (type.isInstance(mo)) {

So we're loading into a ModelObject, (more specifically, org.apache.tuscany.spi.model.ComponentType), but the 'type' here is :
PojoComponentType.class
which is in pkg org.apache.tuscany.core.implementation.java and passed into the load(..) call.

On the dev list, Raymond Feng answered my email describing the problem with this:

The ComponentTypeElementLoader creates a generic ComponentType from
the XML file but the code expects an instance of PojoComponentType. Now the
question is how to map the generic ComponentType into the PojoComponentType
if it's required. Jim, do you have ideas?

Jim Marino replied:

We should probably have the implementation loader handle creation of
the particular component type class and populate it by recursing back
into the loader since it is minimal code
(ComponentTypeElementLoader). This would be a nice patch for someone
to work on
Jim