testing git + some JavaDoc

src/java/org/jivesoftware/openfire/carbons/Received.java

@@ -4,9 +4,12 @@ import org.jivesoftware.openfire.forward.Forwarded;
 import org.xmpp.packet.PacketExtension;
 
 /**
+ * The implementation of the {@code <received xmlns="urn:xmpp:carbons:2"/>} extension.
+ * It indicates, that a message has been received by another resource.
+ *
  * @author Christian Schudt
  */
-public class Received extends PacketExtension {
+public final class Received extends PacketExtension {
     public Received(Forwarded forwarded) {
         super("received", "urn:xmpp:carbons:2");
         element.add(forwarded.getElement());

src/java/org/jivesoftware/openfire/carbons/Sent.java

@@ -4,9 +4,12 @@ import org.jivesoftware.openfire.forward.Forwarded;
 import org.xmpp.packet.PacketExtension;
 
 /**
+ * The implementation of the {@code <sent xmlns="urn:xmpp:carbons:2"/>} extension.
+ * It indicates, that a message has been sent by the same user from another resource.
+ *
  * @author Christian Schudt
  */
-public class Sent extends PacketExtension {
+public final class Sent extends PacketExtension {
     public Sent(Forwarded forwarded) {
         super("sent", "urn:xmpp:carbons:2");
         element.add(forwarded.getElement());