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 org.apache.kafka.common.internals;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  
  /**
   * Utility methods for strategies which use reflection to access methods without requiring them at compile-time.
   */
  class ReflectiveStrategy {
  
      static Object invoke(Method method, Object obj, Object... args) {
          try {
              return method.invoke(obj, args);
          } catch (IllegalAccessException e) {
              throw new UnsupportedOperationException(e);
          } catch (InvocationTargetException e) {
              Throwable cause = e.getCause();
              if (cause instanceof RuntimeException) {
                  throw (RuntimeException) cause;
              } else {
                  throw new RuntimeException(cause);
              }
          }
      }
  
      static <T extends Exception> Object invokeChecked(Method method, Class<T> ex, Object obj, Object... args) throws T {
          try {
              return method.invoke(obj, args);
          } catch (IllegalAccessException e) {
              throw new UnsupportedOperationException(e);
          } catch (InvocationTargetException e) {
              Throwable cause = e.getCause();
              if (ex.isInstance(cause)) {
                  throw ex.cast(cause);
              } else if (cause instanceof RuntimeException) {
                  throw (RuntimeException) cause;
              } else {
                  throw new RuntimeException(cause);
              }
          }
      }
  
      /**
       * Interface to allow mocking out classloading infrastructure. This is used to test reflective operations.
       */
      interface Loader {
          Class<?> loadClass(String className) throws ClassNotFoundException;
  
          static Loader forName() {
              return className -> Class.forName(className, true, Loader.class.getClassLoader());
          }
      }
  }
  