content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.spring.util;
  
  import java.lang.reflect.ParameterizedType;
  import java.lang.reflect.Type;
  
  /**
   * {@link Class} Utilities
   *
   * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
   * @since 0.1.1
   */
  @SuppressWarnings("unchecked")
  public class ClassUtils {
  
      /**
       * The empty array for {@link Class}
       *
       * @since 1.0.6
       */
      public static final Class<?>[] EMPTY_CLASS_ARRAY = new Class<?>[0];
  
  
      public static <T> Class<T> resolveGenericType(Class<?> declaredClass) {
          ParameterizedType parameterizedType = (ParameterizedType) declaredClass.getGenericSuperclass();
          Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
          return (Class<T>) actualTypeArguments[0];
      }
  }
  