A URL deployment attribute like this on jboss.deployment:type=DeploymentScanner,flavor=URL
(notice missing / at the end):

<attribute name="URLs">
deploy
</attribute>

leads to the datasource not deploying due to waiting on:

2006-09-22 12:04:07,640 DEBUG [org.jboss.system.ServiceController] waiting in start jboss.jca:service=ManagedConnectionFactory,name=DefaultDS on jboss.jca:service=RARDeployment,name='jboss-local-jdbc.rar'

JBoss deploys this instead:

2006-09-22 12:04:06,062 DEBUG [org.jboss.resource.deployment.RARDeployment] Created jboss.jca:service=RARDeployment,name='deploy#jboss-local-jdbc.rar'

The bug is that DefaultDS is an incomplete deployment and the
URLDeploymentScanner should throw something like this:

17:29:03,852 ERROR [URLDeploymentScanner] Incomplete Deployment listing: ......