Java-doc improvement

Change-Id: I9737cd0e636d94a829c8c79440654c8fe1b55e36

@@ -26,6 +26,7 @@ public class DefaultLabel extends AbstractModel implements Label {
      * Creates a label attributed to the specified provider (may be null).
      * if provider is null, which means the label is not managed by the SB.
      *
+     * @param providerId  tunnelProvider Id
      * @param elementId   parent network element
      * @param number      port number
      * @param parentLabel parent port or parent label

@@ -57,14 +57,16 @@ public interface TunnelService {
     /**
      * Returns a collection of all known tunnel based on the type.
      *
+     *@param type  tunnelType
      * @return all tunnels for a specific type
      */
     Collection<Tunnel> getTunnels(Tunnel.Type type);
 
     /**
-     * Returns set of all tunnels from the
-     * specified connectpoint.
+     * Returns set of all tunnels from the specified connectpoint.
      *
+     * @param connectPoint device/portnumber
+     * @param type  tunnelType
      * @return set of tunnels
      */
     Collection<Tunnel> getTunnels(ConnectPoint connectPoint, Tunnel.Type type);