minwin-gcc-5-2/libjava/classpath/gnu/CORBA/Unexpected.java

/* DNW.java --
   Copyright (C) 2005 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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02110-1301 USA.

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permission to link this library with independent modules to produce an
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package gnu.CORBA;


/**
 * Contains the static method to throw an error in the case
 * when the execution should never get into the current point.
 *
 * The error message contains the text, suggesting to check
 * the user code first and then report a bug.
 *
 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
 */
public class Unexpected
  extends InternalError
{
  /**
   * Use serialVersionUID for interoperability.
   */
  private static final long serialVersionUID = 1;

  /**
   * The default message for the CORBA assertion error.
   */
  public static final String SHARED_MESSAGE =
    "CORBA assertion error. Please check your code. " +
    "If you think it is Classpath problem, please report " +
    "this bug providing as much information as possible.";

  /**
   * Create an instance with explaining message and enclosing
   * exception.
   */
  public Unexpected(String msg, Exception why)
  {
    super(msg + ". " + SHARED_MESSAGE);
    if (why != null)
      initCause(why);
  }

  /**
   * Create an instance with enclosing exception.
   */
  public Unexpected(Exception why)
  {
    super(SHARED_MESSAGE);
    if (why != null)
      initCause(why);
  }

  /**
   * Create an instance.
   */
  public Unexpected()
  {
    super(SHARED_MESSAGE);
  }

  /**
   * Throws an error with the custom explaining message and
   * the appended share message.
   *
   * @param msg the error message
   * @param why the enclosing exception.
   */
  public static void error(String msg, Exception why)
  {
    throw new Unexpected(msg, why);
  }

  /**
   * Throws an error with the shared explaining message.
   *
   * @param why the enclosing exception.
   * @throws Error, always.
   */
  public static void error(Exception why)
  {
    throw new Unexpected(why);
  }

  /**
   * Throws an error with the shared explaining message.
   *
   * @throws Error, always.
   */
  public static void error()
  {
    throw new Unexpected();
  }
}