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diff --git a/src/share/classes/java/security/AlgorithmParametersSpi.java b/src/share/classes/java/security/AlgorithmParametersSpi.java
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+/*
+ * Copyright 1997-2004 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.security;
+
+import java.io.*;
+import java.security.spec.AlgorithmParameterSpec;
+import java.security.spec.InvalidParameterSpecException;
+
+/**
+ * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>)
+ * for the <code>AlgorithmParameters</code> class, which is used to manage
+ * algorithm parameters.
+ *
+ * <p> All the abstract methods in this class must be implemented by each
+ * cryptographic service provider who wishes to supply parameter management
+ * for a particular algorithm.
+ *
+ * @author Jan Luehe
+ *
+ *
+ * @see AlgorithmParameters
+ * @see java.security.spec.AlgorithmParameterSpec
+ * @see java.security.spec.DSAParameterSpec
+ *
+ * @since 1.2
+ */
+
+public abstract class AlgorithmParametersSpi {
+
+    /**
+     * Initializes this parameters object using the parameters
+     * specified in <code>paramSpec</code>.
+     *
+     * @param paramSpec the parameter specification.
+     *
+     * @exception InvalidParameterSpecException if the given parameter
+     * specification is inappropriate for the initialization of this parameter
+     * object.
+     */
+    protected abstract void engineInit(AlgorithmParameterSpec paramSpec)
+        throws InvalidParameterSpecException;
+
+    /**
+     * Imports the specified parameters and decodes them
+     * according to the primary decoding format for parameters.
+     * The primary decoding format for parameters is ASN.1, if an ASN.1
+     * specification for this type of parameters exists.
+     *
+     * @param params the encoded parameters.
+     *
+     * @exception IOException on decoding errors
+     */
+    protected abstract void engineInit(byte[] params)
+        throws IOException;
+
+    /**
+     * Imports the parameters from <code>params</code> and
+     * decodes them according to the specified decoding format.
+     * If <code>format</code> is null, the
+     * primary decoding format for parameters is used. The primary decoding
+     * format is ASN.1, if an ASN.1 specification for these parameters
+     * exists.
+     *
+     * @param params the encoded parameters.
+     *
+     * @param format the name of the decoding format.
+     *
+     * @exception IOException on decoding errors
+     */
+    protected abstract void engineInit(byte[] params, String format)
+        throws IOException;
+
+    /**
+     * Returns a (transparent) specification of this parameters
+     * object.
+     * <code>paramSpec</code> identifies the specification class in which
+     * the parameters should be returned. It could, for example, be
+     * <code>DSAParameterSpec.class</code>, to indicate that the
+     * parameters should be returned in an instance of the
+     * <code>DSAParameterSpec</code> class.
+     *
+     * @param paramSpec the the specification class in which
+     * the parameters should be returned.
+     *
+     * @return the parameter specification.
+     *
+     * @exception InvalidParameterSpecException if the requested parameter
+     * specification is inappropriate for this parameter object.
+     */
+    protected abstract
+        <T extends AlgorithmParameterSpec>
+        T engineGetParameterSpec(Class<T> paramSpec)
+        throws InvalidParameterSpecException;
+
+    /**
+     * Returns the parameters in their primary encoding format.
+     * The primary encoding format for parameters is ASN.1, if an ASN.1
+     * specification for this type of parameters exists.
+     *
+     * @return the parameters encoded using their primary encoding format.
+     *
+     * @exception IOException on encoding errors.
+     */
+    protected abstract byte[] engineGetEncoded() throws IOException;
+
+    /**
+     * Returns the parameters encoded in the specified format.
+     * If <code>format</code> is null, the
+     * primary encoding format for parameters is used. The primary encoding
+     * format is ASN.1, if an ASN.1 specification for these parameters
+     * exists.
+     *
+     * @param format the name of the encoding format.
+     *
+     * @return the parameters encoded using the specified encoding scheme.
+     *
+     * @exception IOException on encoding errors.
+     */
+    protected abstract byte[] engineGetEncoded(String format)
+        throws IOException;
+
+    /**
+     * Returns a formatted string describing the parameters.
+     *
+     * @return a formatted string describing the parameters.
+     */
+    protected abstract String engineToString();
+}