Added support for dynamic command registration.

src/main/java/com/sk89q/util/ReflectionUtil.java

@@ -0,0 +1,40 @@
+/*
+ * WorldGuard
+ * Copyright (C) 2011 sk89q <http://www.sk89q.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.util;
+
+import java.lang.reflect.Field;
+
+/**
+ * @author zml2008
+ */
+public class ReflectionUtil {
+    public static <T> T getField(Object from, String name) {
+        Class<?> checkClass = from.getClass();
+        do {
+            try {
+                Field field = checkClass.getDeclaredField(name);
+                field.setAccessible(true);
+                return (T) field.get(from);
+            } catch (NoSuchFieldException e) {
+            } catch (IllegalAccessException e) {
+            }
+        } while (checkClass.getSuperclass() != Object.class && ((checkClass = checkClass.getSuperclass()) != null));
+        return null;
+    }
+}