Problems with DSL / DSLR files when used with a KnowledgeAgent / Change Sets

I tried to address this on the Drools Mailing list but did not receive an answer. See:
Mailing list message threads: "[rules-users] DSL, DSLR and Changesets...", "[rules-users] Can DSL / DSLR be loaded in a changeset?"

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Are DSL and DSLR files supported by the KnowledgeAgent / Changeset code. Here's the details of my test case:

I have a Changeset file I'm trying to load which looks like the following:

<?xml version="1.0" encoding="UTF-8"?>
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' >
<add>
<resource source="classpath:com/test/general/" type="DSL" />
<resource source="classpath:com/test/general/" type="DSLR" />
</add>
</change-set>

There's a single DSL and a single DSLR file in this folder. I'm loading the change set as follows:

KnowledgeAgent ka = KnowledgeAgentFactory.newKnowledgeAgent(agentName);
ka.applyChangeSet(ResourceFactory.newClassPathResource(agentName + "-changeset.xml", getClass()));

When I run this code, the logger suggests the DSL and DSLR are being loaded and compiled:

[2009:10:299 16:10:52:info] KnowledgAgent created, with configuration:
monitorChangeSetEvents=true scanResources=true scanDirectories=true
++ Constructing and applying changeSet: dsl-test
[2009:10:299 16:10:52:info] KnowledegAgent has started listening for ChangeSet notifications
(null: 3, 68): cvc-elt.1: Cannot find the declaration of element 'change-set'.
[2009:10:299 16:10:317:info] KnowledgAgent applying ChangeSet
[2009:10:299 16:10:317:debug] KnowledgeAgent subscribing to directory=[ClassPathResource path='com/test/general/']
[2009:10:299 16:10:317:debug] ResourceChangeNotification subscribing listener=org.drools.agent.impl.KnowledgeAgentImpl@b9b618 to resource=[ClassPathResource path='com/test/general/']
[2009:10:299 16:10:317:debug] ResourceChangeScanner subcribing notifier=org.drools.io.impl.ResourceChangeNotifierImpl@61ec49 to resource=[ClassPathResource path='com/test/general/']
[2009:10:299 16:10:317:debug] KnowledgeAgent subscribing to directory content resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test.dsl']
[2009:10:299 16:10:317:debug] ResourceChangeNotification subscribing listener=org.drools.agent.impl.KnowledgeAgentImpl@b9b618 to resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test.dsl']
[2009:10:299 16:10:317:debug] ResourceChangeScanner subcribing notifier=org.drools.io.impl.ResourceChangeNotifierImpl@61ec49 to resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test.dsl']
[2009:10:299 16:10:317:debug] KnowledgeAgent subscribing to directory content resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test-dsl.dslr']
[2009:10:299 16:10:317:debug] ResourceChangeNotification subscribing listener=org.drools.agent.impl.KnowledgeAgentImpl@b9b618 to resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test-dsl.dslr']
[2009:10:299 16:10:317:debug] ResourceChangeScanner subcribing notifier=org.drools.io.impl.ResourceChangeNotifierImpl@61ec49 to resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test-dsl.dslr']
[2009:10:299 16:10:317:debug] KnowledgeAgent subscribing to directory=[ClassPathResource path='com/hmc/test/general/']
[2009:10:299 16:10:317:debug] ResourceChangeNotification subscribing listener=org.drools.agent.impl.KnowledgeAgentImpl@b9b618 to resource=[ClassPathResource path='com/hmc/test/general/']
[2009:10:299 16:10:317:debug] KnowledgeAgent ChangeSet requires KnowledgeBuilder
[2009:10:299 16:10:317:debug] KnowledgeAgent rebuilding KnowledgeBase using ChangeSet
[2009:10:299 16:10:317:debug] KnowledgeAgent building resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test.dsl']
[2009:10:299 16:10:333:debug] KnowledgeAgent building resource=[FileResource file='C:\bea\user_projects\workspaces\alerts\rules-kb\test-kb\target\test-classes\com\test\general\test-dsl.dslr']
[2009:10:299 16:10:333:info] KnowledgeAgent new KnowledgeBase now built and in use

However after load is completed I try to run the following code:

System.out.println("KB Info");
Collection<KnowledgePackage> pkgs = ka.getKnowledgeBase().getKnowledgePackages();
for (KnowledgePackage kp : pkgs) {
for (Rule rule : kp.getRules())

{ System.out.println("Rule: " + rule.getName() + ", " + ule.getPackageName()); for (String attribs : rule.listMetaAttributes()) System.out.println("---- " + attribs); }

}
}

I get NO output (except of course "KB Info").

If I initialize the knowledgebase like this:

KnowledgeBuilder kbuilder = KnowledgeBuilderFactory
.newKnowledgeBuilder();
kbuilder.add(ResourceFactory
.newClassPathResource("com/test/general/test.dsl"),
ResourceType.DSL);

kbuilder.add(ResourceFactory
.newClassPathResource("com/test/general/test-dsl.dslr"),
ResourceType.DSLR);

if (kbuilder.hasErrors())

{ throw new Exception(kbuilder.getErrors().toString()); }

KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
}

... and run the same output code I get a list of the rules that were loaded.

Any clues why the different behavior?