Reformat MapleClient

Now uses 4 space indentation

src/main/java/client/MapleClient.java

@@ -51,8 +51,8 @@ import tools.*;
 
 import javax.script.ScriptEngine;
 import java.io.IOException;
-import java.io.UnsupportedEncodingException;
 import java.net.InetAddress;
+import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.sql.*;
@@ -615,7 +615,7 @@ public class MapleClient {
 
             int len = convert.length();
             for (int i = len - 2; i >= 0; i -= 2) {
-				hwid.append(convert.substring(i, i + 2));
+                hwid.append(convert, i, i + 2);
             }
             hwid.insert(4, "-");
 
@@ -888,7 +888,9 @@ public class MapleClient {
                     player.saveCharToDB(true);
 
                     player.logOff();
-					if(YamlConfig.config.server.INSTANT_NAME_CHANGE) player.doPendingNameChange();
+                    if (YamlConfig.config.server.INSTANT_NAME_CHANGE) {
+                        player.doPendingNameChange();
+                    }
                     clear();
                 } else {
                     getChannelServer().removePlayer(player);
@@ -1201,9 +1203,9 @@ public class MapleClient {
     private static boolean checkHash(String hash, String type, String password) {
         try {
             MessageDigest digester = MessageDigest.getInstance(type);
-			digester.update(password.getBytes("UTF-8"), 0, password.length());
+            digester.update(password.getBytes(StandardCharsets.UTF_8), 0, password.length());
             return HexTool.toString(digester.digest()).replace(" ", "").toLowerCase().equals(hash);
-		} catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
+        } catch (NoSuchAlgorithmException e) {
             throw new RuntimeException("Encoding the string failed", e);
         }
     }