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diff --git a/libjava/classpath/javax/security/sasl/AuthenticationException.java b/libjava/classpath/javax/security/sasl/AuthenticationException.java
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+/* AuthenticationException.java --
+   Copyright (C) 2003, 2004 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
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.security.sasl;
+
+/**
+ * <p>This exception is thrown by a SASL mechanism implementation to indicate
+ * that the SASL exchange has failed due to reasons related to authentication,
+ * such as an invalid identity, passphrase, or key.</p>
+ *
+ * <p>Note that the lack of an <code>AuthenticationException</code> does not
+ * mean that the failure was not due to an authentication error. A SASL
+ * mechanism implementation might throw the more general {@link SaslException}
+ * instead of <code>AuthenticationException</code> if it is unable to determine
+ * the nature of the failure, or if does not want to disclose the nature of the
+ * failure, for example, due to security reasons.</p>
+ */
+public class AuthenticationException extends SaslException
+{
+
+  // Constants and variables
+  // -------------------------------------------------------------------------
+
+  // Constructor(s)
+  // -------------------------------------------------------------------------
+
+  /**
+   * Constructs a new instance of <code>AuthenticationException</code>. The
+   * root exception and the detailed message are <code>null</code>.
+   */
+  public AuthenticationException()
+  {
+    super();
+  }
+
+  /**
+   * Constructs a new instance of <code>AuthenticationException</code> with a
+   * detailed message. The root exception is <code>null</code>.
+   *
+   * @param detail a possibly <code>null</code> string containing details of
+   * the exception.
+   * @see Throwable#getMessage()
+   */
+  public AuthenticationException(String detail)
+  {
+    super(detail);
+  }
+
+  /**
+   * Constructs a new instance of <code>AuthenticationException</code> with a
+   * detailed message and a root exception.
+   *
+   * @param detail a possibly <code>null</code> string containing details of
+   * the exception.
+   * @param ex a possibly <code>null</code> root exception that caused this
+   * exception.
+   * @see Throwable#getMessage()
+   * @see SaslException#getCause()
+   */
+  public AuthenticationException(String detail, Throwable ex)
+  {
+    super(detail, ex);
+  }
+
+  // Class methods
+  // -------------------------------------------------------------------------
+
+  // Instance methods
+  // -------------------------------------------------------------------------
+}