More Serializable fixes.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk/src/plugins/gateway@4483 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/gateway/SubscriptionInfo.java

@@ -10,6 +10,8 @@
 
 package org.jivesoftware.wildfire.gateway;
 
+import java.io.Serializable;
+
 import org.xmpp.packet.JID;
 
 /**
@@ -20,7 +22,9 @@ import org.xmpp.packet.JID;
  * 
  * @author Noah Campbell
  */
-public class SubscriptionInfo {
+public class SubscriptionInfo implements Serializable {
+
+    private static final long serialVersionUID = 1L;
 
     /**
      * Construct a new <code>SubscriptionInfo</code>

src/java/org/jivesoftware/wildfire/gateway/roster/AbstractForeignContact.java

@@ -10,6 +10,7 @@
 
 package org.jivesoftware.wildfire.gateway.roster;
 
+import java.io.Serializable;
 import java.io.IOException;
 import java.text.MessageFormat;
 import java.util.HashSet;
@@ -24,7 +25,9 @@ import org.xmpp.packet.JID;
  * 
  * @author Noah Campbell
  */
-public abstract class AbstractForeignContact implements ForeignContact {
+public abstract class AbstractForeignContact implements ForeignContact, Serializable {
+
+    private static final long serialVersionUID = 1L;
 
     /**
      * The id for this contact.  This maps directly to the legacy userid.