Use AccountQueryEvent in NameManager#canUseName utility method

src/main/java/com/Acrobot/ChestShop/Events/AccountQueryEvent.java

@@ -11,6 +11,7 @@ public class AccountQueryEvent extends Event {
     private static final HandlerList handlers = new HandlerList();
     private final String name;
     private Account account = null;
+    private boolean searchOfflinePlayers = true;
 
     public AccountQueryEvent(String name) {
         this.name = name;
@@ -28,6 +29,22 @@ public class AccountQueryEvent extends Event {
         this.account = account;
     }
 
+    /**
+     * Get whether or not offline player data should be searched (too)
+     * @return Whether or not offline player data should be searched (too)
+     */
+    public boolean searchOfflinePlayers() {
+        return searchOfflinePlayers;
+    }
+
+    /**
+     * Set whether or not offline player data should be searched (too)
+     * @param searchOfflinePlayers Whether or not offline player data should be searched (too)
+     */
+    public void searchOfflinePlayers(boolean searchOfflinePlayers) {
+        this.searchOfflinePlayers = searchOfflinePlayers;
+    }
+
     @Override
     public HandlerList getHandlers() {
         return handlers;

src/main/java/com/Acrobot/ChestShop/UUIDs/NameManager.java

@@ -137,7 +137,7 @@ public class NameManager implements Listener {
     @EventHandler
     public static void onAccountQuery(AccountQueryEvent event) {
         if (event.getAccount() == null) {
-            event.setAccount(getLastAccountFromShortName(event.getName()));
+            event.setAccount(getLastAccountFromShortName(event.getName(), event.searchOfflinePlayers()));
         }
     }
 
@@ -201,7 +201,19 @@ public class NameManager implements Listener {
      */
     @Deprecated
     public static Account getLastAccountFromShortName(String shortName) {
-        Account account = getAccountFromShortName(shortName); // first get the account associated with the short name
+        return getLastAccountFromShortName(shortName, true);
+    }
+
+    /**
+     * Get the information from the last time a player logged in that previously used the shortened name
+     *
+     * @param shortName The name of the player to get the last account for
+     * @param searchOfflinePlayer Whether or not to search the offline players too
+     * @return The last account or <tt>null</tt> if none was found
+     * @throws IllegalArgumentException if the username is empty
+     */
+    private static Account getLastAccountFromShortName(String shortName, boolean searchOfflinePlayer) {
+        Account account = getAccountFromShortName(shortName, searchOfflinePlayer); // first get the account associated with the short name
         if (account != null) {
             return getAccount(account.getUuid()); // then get the last account that was online with that UUID
         }
@@ -363,7 +375,10 @@ public class NameManager implements Listener {
             return true;
         }
 
-        Account account = getAccountFromShortName(name, false);
+        AccountQueryEvent queryEvent = new AccountQueryEvent(name);
+        queryEvent.searchOfflinePlayers(false);
+        ChestShop.callEvent(queryEvent);
+        Account account = queryEvent.getAccount();
         if (account == null) {
             return false;
         }