Implement requested changes.

- Added renameAccount(UUID, String).
- Remove @Nullable annotation and remove repo/dependency from pom.xml.
- Fixed typo in javadoc in Economy.

pom.xml

@@ -44,10 +44,6 @@ Vault currently supports the following: Permissions 3, PEX, GroupManager, bPerms
             <id>spigot-repo</id>
             <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
 		</repository>
-		<repository>
-			<id>central</id>
-			<url>https://repo1.maven.org/maven2</url>
-		</repository>
 	</repositories>
 
 	<distributionManagement>
@@ -65,13 +61,6 @@ Vault currently supports the following: Permissions 3, PEX, GroupManager, bPerms
 			<version>${bukkitVersion}</version>
 			<scope>provided</scope>
 		</dependency>
-		<!-- Annotations -->
-		<dependency>
-			<groupId>org.jetbrains</groupId>
-			<artifactId>annotations</artifactId>
-			<version>23.0.0</version>
-			<scope>provided</scope>
-		</dependency>
 		<!-- Test Dependency -->
 		<dependency>
 			<groupId>junit</groupId>

src/main/java/net/milkbowl/vault/economy/Economy.java

@@ -23,7 +23,7 @@ import org.bukkit.OfflinePlayer;
 /**
  * The main economy API
  *
- * @deprecated in lieu of the modern Vault2. To update alter your import to new.milkbowl.vault2.economy and update to use the new UUID-based methods where available.
+ * @deprecated in lieu of the modern Vault2. To update alter your import to net.milkbowl.vault2.economy and update to use the new UUID-based methods where available.
  */
 public interface Economy {
 

src/main/java/net/milkbowl/vault2/economy/Economy.java

@@ -20,8 +20,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
-import org.jetbrains.annotations.Nullable;
-
 /**
  * The main economy API
  *
@@ -29,7 +27,7 @@ import org.jetbrains.annotations.Nullable;
 public interface Economy {
 
     /*
-     * Economy plugin-related methods follow. 
+     * Economy plugin-related methods follow.
      */
 
     /**
@@ -118,23 +116,21 @@ public interface Economy {
 
     /**
      * Returns a map that represents all of the UUIDs which have accounts in the
-     * plugin, as well as their last-known-name whether it is null or not. This is
+     * plugin, as well as their last-known-name. This is used for Vault's economy
-     * used for Vault's economy converter and should be given every account
+     * converter and should be given every account available.
-     * available.
      * 
      * @return a {@link Map} composed of the accounts keyed by their UUID, along
-     *         with their associated last-known-name (null or not.)
+     *         with their associated last-known-name.
      */
-    public Map<UUID, @Nullable String> getUUIDNameMap();
+    public Map<UUID, String> getUUIDNameMap();
 
     /**
      * Gets the last known name of an account owned by the given UUID. Required for
      * messages to be more human-readable than UUIDs alone can provide.
      * 
      * @param uuid UUID to look up.
-     * @return name of the account owner or null.
+     * @return name of the account owner.
      */
-    @Nullable
     public String getAccountName(UUID uuid);
 
     /**
@@ -154,6 +150,17 @@ public interface Economy {
      */
     public boolean hasAccount(UUID uuid, String worldName);
 
+    /**
+     * A method which changes the name associated with the given UUID in the
+     * Map<UUID, String> received from {@link #getUUIDNameMap()}.
+     * 
+     * @param uuid which is having a name change.
+     * @param name name that will be associated with the UUID in the 
+     *             Map<UUID, String> map.
+     * @return true if the name change is successful.
+     */
+    public boolean renameAccount(UUID uuid, String name);
+
     /**
      * Gets balance of a UUID
      *