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Additional jre emulation classes for gwt and j2cl.
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/*
 * Copyright (c) 1996, 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
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 */

package java.lang.reflect;

/**
 * InvocationTargetException is a checked exception that wraps an exception thrown by an invoked
 * method or constructor.
 *
 * 
 * As of release 1.4, this exception has been retrofitted to conform to the general purpose
 * exception-chaining mechanism. The "target exception" that is provided at construction time and
 * accessed via the {@link #getTargetException()} method is now known as the cause, and may
 * be accessed via the {@link Throwable#getCause()} method, as well as the aforementioned
 * "legacy method."
 * 
 *
 * @see Method
 * @see Constructor
 */
public class InvocationTargetException extends ReflectiveOperationException {
  /**
   * Use serialVersionUID from JDK 1.1.X for interoperability
   */
  private static final long serialVersionUID = 4085088731926701167L;

  /**
   * This field holds the target if the InvocationTargetException(Throwable target) constructor was
   * used to instantiate the object.
   *
   * @serial
   *
   */
  private Throwable target;

  /**
   * Constructs an {@code InvocationTargetException} with {@code null} as the target exception.
   */
  protected InvocationTargetException() { // NOPMD false positive super is called
    super((Throwable) null); // Disallow initCause
  }

  /**
   * Constructs a InvocationTargetException with a target exception.
   *
   * @param target the target exception
   */
  public InvocationTargetException(final Throwable target) { // NOPMD false positive super is called
    super((Throwable) null); // Disallow initCause
    this.target = target;
  }

  /**
   * Constructs a InvocationTargetException with a target exception and a detail message.
   *
   * @param target the target exception
   * @param message the detail message
   */
  public InvocationTargetException(final Throwable target, final String message) {
    super(message, null); // Disallow initCause
    this.target = target;
  }

  /**
   * Get the thrown target exception.
   *
   * 
   * This method predates the general-purpose exception chaining facility. The
   * {@link Throwable#getCause()} method is now the preferred means of obtaining this information.
   * 
   *
   * @return the thrown target exception (cause of this exception).
   */
  public Throwable getTargetException() {
    return this.target;
  }

  /**
   * Returns the cause of this exception (the thrown target exception, which may be {@code null}).
   *
   * @return the cause of this exception.
   * @since 1.4
   */
  @Override
  public Throwable getCause() {
    return this.target;
  }
}