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diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/BasePad.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/BasePad.java
new file mode 100644
index 000000000..adc2c9bbc
--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/BasePad.java
@@ -0,0 +1,193 @@
+/* BasePad.java -- 
+   Copyright (C) 2001, 2002, 2003, 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.lang.CPStringBuilder;
+
+import gnu.java.security.Configuration;
+
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * An abstract class to facilitate implementing padding algorithms.
+ */
+public abstract class BasePad
+    implements IPad
+{
+  private static final Logger log = Logger.getLogger(BasePad.class.getName());
+  /** The canonical name prefix of the padding algorithm. */
+  protected String name;
+  /** The block size, in bytes, for this instance. */
+  protected int blockSize;
+
+  /** Trivial constructor for use by concrete subclasses. */
+  protected BasePad(final String name)
+  {
+    super();
+
+    this.name = name;
+    blockSize = -1;
+  }
+
+  public String name()
+  {
+    final CPStringBuilder sb = new CPStringBuilder(name);
+    if (blockSize != -1)
+      sb.append('-').append(String.valueOf(8 * blockSize));
+    return sb.toString();
+  }
+
+  public void init(final int bs) throws IllegalStateException
+  {
+    if (blockSize != -1)
+      throw new IllegalStateException();
+    blockSize = bs;
+    setup();
+  }
+
+  /**
+   * Initialises the algorithm with designated attributes. Names, valid and/or
+   * recognisable by all concrete implementations are described in {@link IPad}
+   * class documentation. Other algorithm-specific attributes MUST be documented
+   * in the implementation class of that padding algorithm.
+   * <p>
+   * For compatibility reasons, this method is not declared <i>abstract</i>.
+   * Furthermore, and unless overridden, the default implementation will throw
+   * an {@link UnsupportedOperationException}. Concrete padding algorithms MUST
+   * override this method if they wish to offer an initialisation method that
+   * allows for other than the padding block size parameter to be specified.
+   * 
+   * @param attributes a set of name-value pairs that describes the desired
+   *          future behaviour of this instance.
+   * @exception IllegalStateException if the instance is already initialised.
+   * @exception IllegalArgumentException if the block size value is invalid.
+   */
+  public void init(Map attributes) throws IllegalStateException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  public void reset()
+  {
+    blockSize = -1;
+  }
+
+  /**
+   * A default implementation of a correctness test that exercises the padder
+   * implementation, using block sizes varying from 2 to 256 bytes.
+   * 
+   * @return <code>true</code> if the concrete implementation correctly unpads
+   *         what it pads for all tested block sizes. Returns <code>false</code>
+   *         if the test fails for any block size.
+   */
+  public boolean selfTest()
+  {
+    final byte[] in = new byte[1024];
+    for (int bs = 2; bs < 256; bs++)
+      if (! test1BlockSize(bs, in))
+        return false;
+    return true;
+  }
+
+  /**
+   * The basic symmetric test for a padder given a specific block size.
+   * <p>
+   * The code ensures that the implementation is capable of unpadding what it
+   * pads.
+   * 
+   * @param size the block size to test.
+   * @param buffer a work buffer. It is exposed as an argument for this method
+   *          to reduce un-necessary object allocations.
+   * @return <code>true</code> if the test passes; <code>false</code>
+   *         otherwise.
+   */
+  protected boolean test1BlockSize(int size, byte[] buffer)
+  {
+    byte[] padBytes;
+    final int offset = 5;
+    final int limit = buffer.length;
+    this.init(size);
+    for (int i = 0; i < limit - offset - blockSize; i++)
+      {
+        padBytes = pad(buffer, offset, i);
+        if (((i + padBytes.length) % blockSize) != 0)
+          {
+            if (Configuration.DEBUG)
+              log.log(Level.SEVERE,
+                      "Length of padded text MUST be a multiple of "
+                      + blockSize, new RuntimeException(name()));
+            return false;
+          }
+        System.arraycopy(padBytes, 0, buffer, offset + i, padBytes.length);
+        try
+          {
+            if (padBytes.length != unpad(buffer, offset, i + padBytes.length))
+              {
+                if (Configuration.DEBUG)
+                  log.log(Level.SEVERE,
+                          "IPad [" + name() + "] failed symmetric operation",
+                          new RuntimeException(name()));
+                return false;
+              }
+          }
+        catch (WrongPaddingException x)
+          {
+            if (Configuration.DEBUG)
+              log.throwing(this.getClass().getName(), "test1BlockSize", x);
+            return false;
+          }
+      }
+    this.reset();
+    return true;
+  }
+
+  /**
+   * If any additional checks or resource setup must be done by the subclass,
+   * then this is the hook for it. This method will be called before the
+   * {@link #init(int)} method returns.
+   */
+  public abstract void setup();
+
+  public abstract byte[] pad(byte[] in, int off, int len);
+
+  public abstract int unpad(byte[] in, int off, int len)
+      throws WrongPaddingException;
+}