The URLDeploymentScanner should remove the deployed urls when stopService() is invoked.

Something like:
protected void stopService()
{
// Tell the super class to suspend the scanning thread
super.stopService();

// Clone the list to avoid concurrent modification problem
LinkedList<DeployedURL> urlsToRemove = new LinkedList<DeployedURL>(deployedSet);

boolean trace = log.isTraceEnabled();
for (DeployedURL deployedURL : urlsToRemove)

{ if (trace) log.trace("Removing " + deployedURL.url); undeploy(deployedURL); }

}