Don't allow old UUID's to accidentally overwrite current UUID for use…

…r mapping.

Add some extra logging and uuid debug.

Essentials/src/com/earth2me/essentials/EssentialsUpgrade.java

@@ -646,7 +646,7 @@ public static void uuidFileConvert(IEssentials ess, Boolean ignoreUFCache)
 					conf.forceSave();
 					config = new EssentialsUserConf(name, uuid, new File(userdir, uuid + ".yml"));
 					config.convertLegacyFile();
-					ess.getUserMap().trackUUID(uuid, name);
+					ess.getUserMap().trackUUID(uuid, name, false);
 					continue;
 				}
 				countFails++;

Essentials/src/com/earth2me/essentials/UserData.java

@@ -841,7 +841,7 @@ public void setLastAccountName(String lastAccountName)
 		this.lastAccountName = lastAccountName;
 		config.setProperty("lastAccountName", lastAccountName);
 		config.save();
-		ess.getUserMap().trackUUID(getConfigUUID(), lastAccountName);
+		ess.getUserMap().trackUUID(getConfigUUID(), lastAccountName, true);
 	}
 
 	public void setNPC(boolean set)

Essentials/src/com/earth2me/essentials/UserMap.java

@@ -29,7 +29,7 @@ public class UserMap extends CacheLoader<String, User> implements IConf
 	private final transient ConcurrentSkipListMap<String, UUID> names = new ConcurrentSkipListMap<String, UUID>();
 	private final transient ConcurrentSkipListMap<UUID, ArrayList<String>> history = new ConcurrentSkipListMap<UUID, ArrayList<String>>();
 	private UUIDMap uuidMap;
-	
+
 	public UserMap(final IEssentials ess)
 	{
 		super();
@@ -39,7 +39,7 @@ public UserMap(final IEssentials ess)
 		//users = CacheBuilder.newBuilder().maximumSize(ess.getSettings().getMaxUserCacheCount()).softValues().removalListener(remListener).build(this);
 		users = CacheBuilder.newBuilder().maximumSize(ess.getSettings().getMaxUserCacheCount()).softValues().build(this);
 	}
-	
+
 	private void loadAllUsersAsync(final IEssentials ess)
 	{
 		ess.runTaskAsynchronously(new Runnable()
@@ -77,12 +77,12 @@ public void run()
 			}
 		});
 	}
-	
+
 	public boolean userExists(final UUID uuid)
 	{
 		return keys.contains(uuid);
 	}
-	
+
 	public User getUser(final String name)
 	{
 		try
@@ -93,13 +93,13 @@ public User getUser(final String name)
 				final UUID uuid = names.get(sanitizedName);
 				return getUser(uuid);
 			}
-			
+
 			final File userFile = getUserFileFromString(sanitizedName);
 			if (userFile.exists())
 			{
 				ess.getLogger().info("Importing user " + name + " to usermap.");
 				User user = new User(new OfflinePlayer(sanitizedName, ess.getServer()), ess);
-				trackUUID(user.getBase().getUniqueId(), user.getName());
+				trackUUID(user.getBase().getUniqueId(), user.getName(), true);
 				return user;
 			}
 			return null;
@@ -109,7 +109,7 @@ public User getUser(final String name)
 			return null;
 		}
 	}
-	
+
 	public User getUser(final UUID uuid)
 	{
 		try
@@ -125,24 +125,40 @@ public User getUser(final UUID uuid)
 			return null;
 		}
 	}
-	
-	public void trackUUID(final UUID uuid, final String name)
+
+	public void trackUUID(final UUID uuid, final String name, boolean replace)
 	{
 		if (uuid != null)
 		{
 			keys.add(uuid);
 			if (name != null && name.length() > 0)
 			{
 				final String keyName = StringUtil.safeString(name);
-				if (!names.containsKey(keyName) || !names.get(keyName).equals(uuid))
+				if (!names.containsKey(keyName))
 				{
 					names.put(keyName, uuid);
 					uuidMap.writeUUIDMap();
 				}
+				else if (!names.get(keyName).equals(uuid))
+				{
+					if (replace)
+					{
+						ess.getLogger().info("Found new UUID for " + name + ". Replacing " + names.get(keyName).toString() + " with " + uuid.toString());
+						names.put(keyName, uuid);
+						uuidMap.writeUUIDMap();
+					}
+					else
+					{
+						if (ess.getSettings().isDebug())
+						{
+							ess.getLogger().info("Found old UUID for " + name + ". Not adding to usermap.");
+						}
+					}
+				}
 			}
 		}
 	}
-	
+
 	@Override
 	public User load(final String stringUUID) throws Exception
 	{
@@ -151,36 +167,36 @@ public User load(final String stringUUID) throws Exception
 		if (player != null)
 		{
 			final User user = new User(player, ess);
-			trackUUID(uuid, user.getName());
+			trackUUID(uuid, user.getName(), true);
 			return user;
 		}
-		
+
 		final File userFile = getUserFileFromID(uuid);
-		
+
 		if (userFile.exists())
 		{
 			player = new OfflinePlayer(uuid, ess.getServer());
 			final User user = new User(player, ess);
 			((OfflinePlayer)player).setName(user.getLastAccountName());
-			trackUUID(uuid, user.getName());
+			trackUUID(uuid, user.getName(), false);
 			return user;
 		}
-		
+
 		throw new Exception("User not found!");
 	}
-	
+
 	@Override
 	public void reloadConfig()
 	{
 		getUUIDMap().forceWriteUUIDMap();
 		loadAllUsersAsync(ess);
 	}
-	
+
 	public void invalidateAll()
 	{
 		users.invalidateAll();
 	}
-	
+
 	public void removeUser(final String name)
 	{
 		if (names == null)
@@ -197,43 +213,43 @@ public void removeUser(final String name)
 		names.remove(name);
 		names.remove(StringUtil.safeString(name));
 	}
-	
+
 	public Set<UUID> getAllUniqueUsers()
 	{
 		return Collections.unmodifiableSet(keys.clone());
 	}
-	
+
 	public int getUniqueUsers()
 	{
 		return keys.size();
 	}
-	
+
 	protected ConcurrentSkipListMap<String, UUID> getNames()
 	{
 		return names;
 	}
-	
+
 	protected ConcurrentSkipListMap<UUID, ArrayList<String>> getHistory()
 	{
 		return history;
 	}
-	
+
 	public List<String> getUserHistory(final UUID uuid)
 	{
 		return history.get(uuid);
 	}
-	
+
 	public UUIDMap getUUIDMap()
 	{
 		return uuidMap;
 	}
-	
+
 	private File getUserFileFromID(final UUID uuid)
 	{
 		final File userFolder = new File(ess.getDataFolder(), "userdata");
 		return new File(userFolder, uuid.toString() + ".yml");
 	}
-	
+
 	public File getUserFileFromString(final String name)
 	{
 		final File userFolder = new File(ess.getDataFolder(), "userdata");

Essentials/src/com/earth2me/essentials/api/Economy.java

@@ -64,7 +64,7 @@ private static void createNPCFile(String name)
 		npcConfig.setProperty("lastAccountName", name);
 		npcConfig.setProperty("money", ess.getSettings().getStartingBalance());
 		npcConfig.forceSave();
-		ess.getUserMap().trackUUID(npcUUID, name);
+		ess.getUserMap().trackUUID(npcUUID, name, true);
 	}
 
 	private static void deleteNPC(String name)

Essentials/src/com/earth2me/essentials/commands/Commandessentials.java

@@ -355,15 +355,27 @@ private void run_uuidtest(final Server server, final CommandSource sender, final
 		{
 			if (player.getName().equalsIgnoreCase(name))
 			{
-				sender.sendMessage("Online player: " + player.getUniqueId().toString());
 				onlineUUID = player.getUniqueId();
+				break;
 			}
 		}
 
+		UUID essUUID = ess.getUserMap().getUser(name).getConfigUUID();
+
 		org.bukkit.OfflinePlayer player = ess.getServer().getOfflinePlayer(name);
 		UUID bukkituuid = player.getUniqueId();
 		sender.sendMessage("Bukkit Lookup: " + bukkituuid.toString());
 
+		if (onlineUUID != null && onlineUUID != bukkituuid)
+		{
+			sender.sendMessage("Online player: " + onlineUUID.toString());
+		}
+
+		if (essUUID != null && essUUID != bukkituuid)
+		{
+			sender.sendMessage("Essentials config: " + essUUID.toString());
+		}
+
 		UUID npcuuid = UUID.nameUUIDFromBytes(("NPC:" + name).getBytes(Charsets.UTF_8));
 		sender.sendMessage("NPC UUID: " + npcuuid.toString());