More console spam reduction for database operations

Changelog.txt

@@ -1,4 +1,5 @@
 Version 2.1.181
+    mcMMO no longer pointlessly tries to check for missing UUIDs for FlatFile database
     Removed the "name change detected" message as some plugins (such as Plan) invoke API calls which spams the console with this message
     Refactored code related to loading player data from the database
     (API) Added DatabaseManager::loadPlayerProfile(String)

src/main/java/com/gmail/nossr50/database/FlatFileDatabaseManager.java

@@ -78,10 +78,6 @@ public final class FlatFileDatabaseManager implements DatabaseManager {
         usersFile = new File(mcMMO.getUsersFilePath());
         checkStructure();
         updateLeaderboards();
-
-        if (mcMMO.getUpgradeManager().shouldUpgrade(UpgradeType.ADD_UUIDS)) {
-            new UUIDUpdateAsyncTask(mcMMO.p, getStoredUsers()).start();
-        }
     }
 
     public void purgePowerlessUsers() {

src/main/java/com/gmail/nossr50/database/SQLDatabaseManager.java

@@ -1337,6 +1337,8 @@ public final class SQLDatabaseManager implements DatabaseManager {
                 mcMMO.p.getLogger().info("Adding UUIDs to mcMMO MySQL user table...");
                 statement.executeUpdate("ALTER TABLE `" + tablePrefix + "users` ADD `uuid` varchar(36) NULL DEFAULT NULL");
                 statement.executeUpdate("ALTER TABLE `" + tablePrefix + "users` ADD UNIQUE INDEX `uuid` (`uuid`) USING BTREE");
+
+                new GetUUIDUpdatesRequired().runTaskLaterAsynchronously(mcMMO.p, 100); // wait until after first purge
             }
 
             mcMMO.getUpgradeManager().setUpgradeCompleted(UpgradeType.ADD_UUIDS);
@@ -1347,8 +1349,6 @@ public final class SQLDatabaseManager implements DatabaseManager {
         finally {
             tryClose(resultSet);
         }
-
-        new GetUUIDUpdatesRequired().runTaskLaterAsynchronously(mcMMO.p, 100); // wait until after first purge
     }
 
     private class GetUUIDUpdatesRequired extends BukkitRunnable {

src/main/java/com/gmail/nossr50/runnables/database/UUIDUpdateAsyncTask.java

@@ -99,7 +99,7 @@ public class UUIDUpdateAsyncTask implements Runnable {
         position += batch.size();
         plugin.getLogger().info(String.format("Conversion progress: %d/%d users", position, userNames.size()));
 
-        if (position == userNames.size()) {
+        if (position +1 >= userNames.size()) {
             mcMMO.getUpgradeManager().setUpgradeCompleted(UpgradeType.ADD_UUIDS);
             awaiter.countDown();
             plugin.getLogger().info("UUID checks completed");