Update Message stuff

src/de/steamwar/bungeecore/Message.java

@@ -33,6 +33,7 @@ import java.io.InputStream;
 import java.text.DateFormat;
 import java.text.MessageFormat;
 import java.util.*;
+import java.util.concurrent.atomic.AtomicReference;
 
 public class Message {
 
@@ -59,18 +60,15 @@ public class Message {
     }
 
     private static SteamwarResourceBundle getOrCreateSingle(String name, String cacheKey) {
-        if (bundles.containsKey(cacheKey)) {
-            return bundles.get(cacheKey);
-        }
+        return bundles.computeIfAbsent(cacheKey, s -> {
             InputStream inputStream = Message.class.getResourceAsStream(name);
             if(inputStream == null) return null;
             try {
-            SteamwarResourceBundle steamwarResourceBundle = new SteamwarResourceBundle(inputStream);
-            bundles.put(cacheKey, steamwarResourceBundle);
-            return steamwarResourceBundle;
+                return new SteamwarResourceBundle(inputStream);
             } catch (IOException e) {
                 return null;
             }
+        });
     }
 
     private static ResourceBundle getResourceBundle(String baseName, Locale locale) {
@@ -79,33 +77,23 @@ public class Message {
         }
         String path = baseName.replace('.', '/');
 
-        SteamwarResourceBundle current = null;
-        SteamwarResourceBundle temp = getOrCreateSingle("/" + path + "_" + locale + ".properties", locale.toString());
-        if (temp != null) {
-            current = temp;
-            bundles.put(locale.toString(), temp);
-        }
+        AtomicReference<SteamwarResourceBundle> current = new AtomicReference<>();
+        apply(current, getOrCreateSingle("/" + path + "_" + locale.toString() + ".properties", locale.toString()), locale.toString());
+        apply(current, getOrCreateSingle("/" + path + "_" + locale.getLanguage() + ".properties", locale.getLanguage()), locale.toString());
+        apply(current, getOrCreateSingle("/" + path + ".properties", ""), locale.toString());
 
-        temp = getOrCreateSingle("/" + path + "_" + locale.getLanguage() + ".properties", locale.getLanguage());
-        if (current != null) current.setParent(temp);
-        if (temp != null) {
-            current = temp;
-            bundles.put(locale.toString(), temp);
-        }
-
-        temp = getOrCreateSingle("/" + path + ".properties", "");
-        if (current != null) current.setParent(temp);
-        if (temp != null) {
-            current = temp;
-            bundles.put(locale.toString(), temp);
-        }
-
-        if (current == null) {
-            throw new SecurityException("Could not find resource bundle for " + path);
-        }
+        if (current.get() == null) throw new SecurityException("Could not find resource bundle for " + path);
         return bundles.get(locale.toString());
     }
 
+    private static void apply(AtomicReference<SteamwarResourceBundle> current, SteamwarResourceBundle now, String bundleKey) {
+        if (current.get() != null) current.get().setParent(now);
+        if (now != null) {
+            current.set(now);
+            bundles.put(bundleKey, now);
+        }
+    }
+
     private static String parse(String message, boolean prefixed, Locale locale, Object... params){
         if(locale == null)
             locale = Locale.getDefault();