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   * 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
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   */
  
  /**
   * Interfaces used to model elements of the Java programming language.
   *
   * The term "element" in this package is used to refer to program
   * elements, the declared entities that make up a program.  Elements
   * include classes, interfaces, methods, constructors, and fields.
   * The interfaces in this package do not model the structure of a
   * program inside a method body; for example there is no
   * representation of a {@code for} loop or {@code try}-{@code finally}
   * block.  However, the interfaces can model some structures only
   * appearing inside method bodies, such as local variables and
   * anonymous classes.
   *
   * <p>When used in the context of annotation processing, an accurate
   * model of the element being represented must be returned.  As this
   * is a language model, the source code provides the fiducial
   * (reference) representation of the construct in question rather than
   * a representation in an executable output like a class file.
   * Executable output may serve as the basis for creating a modeling
   * element.  However, the process of translating source code to
   * executable output may not permit recovering some aspects of the
   * source code representation.  For example, annotations with
   * {@linkplain java.lang.annotation.RetentionPolicy#SOURCE source}
   * {@linkplain java.lang.annotation.Retention retention} cannot be
   * recovered from class files and class files might not be able to
   * provide source position information.
   *
   * Names of {@linkplain
   * jdkx.lang.model.element.ExecutableElement#getParameters()
   * parameters} may not be recoverable from class files.
   *
   * The {@linkplain jdkx.lang.model.element.Modifier modifiers} on an
   * element created from a class file may differ in some cases from an
   * element for the same declaration created from a source file
   * including:
   *
   * <ul>
   * <li> {@code strictfp} on a class or interface
   * <li> {@code final} on a parameter
   * <li> {@code protected}, {@code private}, and {@code static} on classes and interfaces
   * </ul>
   *
   * Some elements which are {@linkplain
   * jdkx.lang.model.util.Elements.Origin#MANDATED mandated} may not be
   * marked as such when created from class files.
   *
   * Additionally, {@linkplain
   * jdkx.lang.model.util.Elements.Origin#SYNTHETIC synthetic}
   * constructs in a class file, such as accessor methods used in
   * implementing nested classes and {@linkplain
   * jdkx.lang.model.util.Elements.Origin#isBridge(ExecutableElement)
   * bridge methods} used in implementing covariant returns, are
   * translation artifacts strictly outside of this model. However, when
   * operating on class files, it is helpful be able to operate on such
   * elements, screening them out when appropriate.
   *
   * <p>During annotation processing, operating on incomplete or
   * erroneous programs is necessary; however, there are fewer
   * guarantees about the nature of the resulting model.  If the source
   * code is not syntactically well-formed or has some other
   * irrecoverable error that could not be removed by the generation of
   * new classes or interfaces, a model may or may not be provided as a
   * quality of implementation issue.  If a program is syntactically
   * valid but erroneous in some other fashion, any returned model must
   * have no less information than if all the method bodies in the
   * program were replaced by {@code "throw new RuntimeException();"}.
   * If a program refers to a missing class or interface Xyz, the
   * returned model must contain no less information than if the
   * declaration of class or interface Xyz were assumed to be {@code
   * "class Xyz {}"}, {@code "interface Xyz {}"}, {@code "enum Xyz {}"},
   * {@code "@interface Xyz {}"}, or {@code "record Xyz {}"}. If a
   * program refers to a missing class or interface {@code Xyz<K1,
   * ... ,Kn>}, the returned model must contain no less information than
   * if the declaration of Xyz were assumed to be {@code "class Xyz<T1,
   * ... ,Tn> {}"} or {@code "interface Xyz<T1, ... ,Tn> {}"}
   *
   * <p> Unless otherwise specified in a particular implementation, the
   * collections returned by methods in this package should be expected
   * to be unmodifiable by the caller and unsafe for concurrent access.
   *
   * <p> Unless otherwise specified, methods in this package will throw
   * a {@code NullPointerException} if given a {@code null} argument.
   *
   * @author Joseph D. Darcy
   * @author Scott Seligman
   * @author Peter von der Ah&eacute;
   * @see jdkx.lang.model.util.Elements
   * @jls 6.1 Declarations
   * @jls 7.4 Package Declarations
   * @jls 7.7 Module Declarations
   * @jls 8.1 Class Declarations
   * @jls 8.3 Field Declarations
   * @jls 8.4 Method Declarations
   * @jls 8.5 Member Class and Interface Declarations
   * @jls 8.8 Constructor Declarations
   * @jls 9.1 Interface Declarations
   * @since 1.6
   */
  package jdkx.lang.model.element;
  