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diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/PKCS7.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/PKCS7.java
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+/* PKCS7.java -- 
+ Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
+
+ This file is a 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 of the License, 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; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, 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 gnu.javax.crypto.pad;
+
+import gnu.java.security.Configuration;
+import gnu.java.security.Registry;
+import gnu.java.security.util.Util;
+
+import java.util.logging.Logger;
+
+/**
+ * The implementation of the PKCS7 padding algorithm.
+ * <p>
+ * This algorithm is described for 8-byte blocks in [RFC-1423] and extended to
+ * block sizes of up to 256 bytes in [PKCS-7].
+ * <p>
+ * References:
+ * <ol>
+ * <li><a href="http://www.ietf.org/rfc/rfc1423.txt">RFC-1423</a>: Privacy
+ * Enhancement for Internet Electronic Mail: Part III: Algorithms, Modes, and
+ * Identifiers.</li>
+ * <li><a href="http://www.ietf.org/">IETF</a>.</li>
+ * <li><a href="http://www.rsasecurity.com/rsalabs/pkcs/pkcs-7/">[PKCS-7]</a>
+ * PKCS #7: Cryptographic Message Syntax Standard - An RSA Laboratories
+ * Technical Note.</li>
+ * <li><a href="http://www.rsasecurity.com/">RSA Security</a>.</li>
+ * </ol>
+ */
+public final class PKCS7
+    extends BasePad
+{
+  private static final Logger log = Logger.getLogger(PKCS7.class.getName());
+
+  /**
+   * Trivial package-private constructor for use by the <i>Factory</i> class.
+   * 
+   * @see PadFactory
+   */
+  PKCS7()
+  {
+    super(Registry.PKCS7_PAD);
+  }
+
+  public void setup()
+  {
+    if (blockSize < 2 || blockSize > 256)
+      throw new IllegalArgumentException();
+  }
+
+  public byte[] pad(byte[] in, int offset, int length)
+  {
+    int padLength = blockSize;
+    if (length % blockSize != 0)
+      padLength = blockSize - length % blockSize;
+    byte[] result = new byte[padLength];
+    for (int i = 0; i < padLength;)
+      result[i++] = (byte) padLength;
+    if (Configuration.DEBUG)
+      log.fine("padding: 0x" + Util.toString(result));
+    return result;
+  }
+
+  public int unpad(byte[] in, int offset, int length)
+      throws WrongPaddingException
+  {
+    int limit = offset + length;
+    int result = in[--limit] & 0xFF;
+    for (int i = 0; i < result - 1; i++)
+      if (result != (in[--limit] & 0xFF))
+        throw new WrongPaddingException();
+    if (Configuration.DEBUG)
+      log.fine("padding length: " + result);
+    return result;
+  }
+}