--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.security.sasl/share/classes/javax/security/sasl/SaslException.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 1999, 2013, 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 javax.security.sasl;
+
+import java.io.IOException;
+
+/**
+ * This class represents an error that has occurred when using SASL.
+ *
+ * @since 1.5
+ *
+ * @author Rosanna Lee
+ * @author Rob Weltman
+ */
+
+public class SaslException extends IOException {
+    /**
+     * The possibly null root cause exception.
+     * @serial
+     */
+    // Required for serialization interoperability with JSR 28
+    private Throwable _exception;
+
+    /**
+     * Constructs a new instance of {@code SaslException}.
+     * The root exception and the detailed message are null.
+     */
+    public SaslException () {
+        super();
+    }
+
+    /**
+     * Constructs a new instance of {@code SaslException} with a detailed message.
+     * The root exception is null.
+     * @param detail A possibly null string containing details of the exception.
+     *
+     * @see java.lang.Throwable#getMessage
+     */
+    public SaslException (String detail) {
+        super(detail);
+    }
+
+    /**
+     * Constructs a new instance of {@code SaslException} with a detailed message
+     * and a root exception.
+     * For example, a SaslException might result from a problem with
+     * the callback handler, which might throw a NoSuchCallbackException if
+     * it does not support the requested callback, or throw an IOException
+     * if it had problems obtaining data for the callback. The
+     * SaslException's root exception would be then be the exception thrown
+     * by the callback handler.
+     *
+     * @param detail A possibly null string containing details of the exception.
+     * @param ex A possibly null root exception that caused this exception.
+     *
+     * @see java.lang.Throwable#getMessage
+     * @see #getCause
+     */
+    public SaslException (String detail, Throwable ex) {
+        super(detail);
+        if (ex != null) {
+            initCause(ex);
+        }
+    }
+
+    /*
+     * Override Throwable.getCause() to ensure deserialized object from
+     * JSR 28 would return same value for getCause() (i.e., _exception).
+     */
+    public Throwable getCause() {
+        return _exception;
+    }
+
+    /*
+     * Override Throwable.initCause() to match getCause() by updating
+     * _exception as well.
+     */
+    public Throwable initCause(Throwable cause) {
+        super.initCause(cause);
+        _exception = cause;
+        return this;
+    }
+
+    /**
+     * Returns the string representation of this exception.
+     * The string representation contains
+     * this exception's class name, its detailed message, and if
+     * it has a root exception, the string representation of the root
+     * exception. This string representation
+     * is meant for debugging and not meant to be interpreted
+     * programmatically.
+     * @return The non-null string representation of this exception.
+     * @see java.lang.Throwable#getMessage
+     */
+    // Override Throwable.toString() to conform to JSR 28
+    public String toString() {
+        String answer = super.toString();
+        if (_exception != null && _exception != this) {
+            answer += " [Caused by " + _exception.toString() + "]";
+        }
+        return answer;
+    }
+
+    /** Use serialVersionUID from JSR 28 RI for interoperability */
+    private static final long serialVersionUID = 4579784287983423626L;
+}