Merge remote-tracking branch 'origin/master'

README.md

@@ -113,4 +113,12 @@ your plugin and rename its packages:
             </plugin>
         </plugins>
     </build>
-```
+```
+
+## Sponsors
+
+[![YourKit](https://www.yourkit.com/images/yklogo.png)](https://www.yourkit.com/java/profiler/)
+
+YourKit supports open source projects with innovative and intelligent tools for monitoring and profiling Java 
+and .NET applications. Their flagship products include the award-winning full-featured [YourKit Java Profiler](https://www.yourkit.com/java/profiler/) 
+and the [.NET Profiler](https://www.yourkit.com/dotnet-profiler/)!

bukkit/src/main/java/it/mycraft/powerlib/bukkit/item/ItemBuilder.java

@@ -79,6 +79,18 @@ public ItemBuilder setMaterial(Material material) {
         return this;
     }
 
+    /**
+     * Adds a custom NBT tag to the item
+     *
+     * @param type  The PersistentDataType
+     * @param key   The key
+     * @param value The value
+     */
+    public <V> ItemBuilder addPersistentValue(PersistentDataType<?, V> type, String key, V value) {
+        NBT.put(key, new Pair<>(type, value));
+        return this;
+    }
+
     /**
      * Sets the item's material getting it from a String
      *

common/src/main/java/it/mycraft/powerlib/common/configuration/ConfigurationProvider.java

@@ -1,8 +1,6 @@
 package it.mycraft.powerlib.common.configuration;
 
 import java.io.*;
-import java.util.HashMap;
-import java.util.Map;
 
 /**
  * Original fragments from bungeecord
@@ -11,24 +9,8 @@
  */
 public abstract class ConfigurationProvider {
 
-    private static final Map<Class<? extends ConfigurationProvider>, ConfigurationProvider> providers = new HashMap<>();
-
-    static {
-        try {
-            providers.put(YamlConfiguration.class, new YamlConfiguration());
-        } catch (NoClassDefFoundError ex) {
-            // Ignore, no SnakeYAML
-        }
-
-        try {
-            providers.put(JsonConfiguration.class, new JsonConfiguration());
-        } catch (NoClassDefFoundError ex) {
-            // Ignore, no Gson
-        }
-    }
-
     public static ConfigurationProvider getProvider(Class<? extends ConfigurationProvider> provider) {
-        return providers.get(provider);
+        return ProviderRegistry.getProvider(provider);
     }
 
     /*------------------------------------------------------------------------*/

common/src/main/java/it/mycraft/powerlib/common/configuration/ProviderRegistry.java

@@ -0,0 +1,27 @@
+package it.mycraft.powerlib.common.configuration;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class ProviderRegistry {
+
+    private static final Map<Class<? extends ConfigurationProvider>, ConfigurationProvider> providers = new HashMap<>();
+
+    static {
+        try {
+            providers.put(YamlConfiguration.class, new YamlConfiguration());
+        } catch (NoClassDefFoundError ex) {
+            // Ignore, no SnakeYAML
+        }
+
+        try {
+            providers.put(JsonConfiguration.class, new JsonConfiguration());
+        } catch (NoClassDefFoundError ex) {
+            // Ignore, no Gson
+        }
+    }
+
+    public static ConfigurationProvider getProvider(Class<? extends ConfigurationProvider> provider) {
+        return providers.get(provider);
+    }
+}