content: /*
   * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code 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
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package java.lang.reflect;
  
  /**
   * WildcardType represents a wildcard type expression, such as
   * {@code ?}, {@code ? extends Number}, or {@code ? super Integer}.
   *
   * @since 1.5
   */
  public interface WildcardType extends Type {
      /**
       * Returns an array of {@code Type} objects representing the  upper
       * bound(s) of this type variable.  Note that if no upper bound is
       * explicitly declared, the upper bound is {@code Object}.
       *
       * <p>For each upper bound B :
       * <ul>
       *  <li>if B is a parameterized type or a type variable, it is created,
       *  (see {@link ParameterizedType ParameterizedType}
       *  for the details of the creation process for parameterized types).
       *  <li>Otherwise, B is resolved.
       * </ul>
       *
       * @return an array of Types representing the upper bound(s) of this
       *     type variable
       * @throws TypeNotPresentException if any of the
       *     bounds refers to a non-existent type declaration
       * @throws MalformedParameterizedTypeException if any of the
       *     bounds refer to a parameterized type that cannot be instantiated
       *     for any reason
       */
      Type[] getUpperBounds();
  
      /**
       * Returns an array of {@code Type} objects representing the
       * lower bound(s) of this type variable.  Note that if no lower bound is
       * explicitly declared, the lower bound is the type of {@code null}.
       * In this case, a zero length array is returned.
       *
       * <p>For each lower bound B :
       * <ul>
       *   <li>if B is a parameterized type or a type variable, it is created,
       *  (see {@link ParameterizedType ParameterizedType}
       *  for the details of the creation process for parameterized types).
       *   <li>Otherwise, B is resolved.
       * </ul>
       *
       * @return an array of Types representing the lower bound(s) of this
       *     type variable
       * @throws TypeNotPresentException if any of the
       *     bounds refers to a non-existent type declaration
       * @throws MalformedParameterizedTypeException if any of the
       *     bounds refer to a parameterized type that cannot be instantiated
       *     for any reason
       */
      Type[] getLowerBounds();
      // one or many? Up to language spec; currently only one, but this API
      // allows for generalization.
  }
  