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diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/security/hash/IMessageDigest.java b/gcc-4.4.3/libjava/classpath/gnu/java/security/hash/IMessageDigest.java
new file mode 100644
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+/* IMessageDigest.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.java.security.hash;
+
+/**
+ * The basic visible methods of any hash algorithm.
+ * <p>
+ * A hash (or message digest) algorithm produces its output by iterating a basic
+ * compression function on blocks of data.
+ */
+public interface IMessageDigest
+    extends Cloneable
+{
+  /**
+   * Returns the canonical name of this algorithm.
+   * 
+   * @return the canonical name of this instance.
+   */
+  String name();
+
+  /**
+   * Returns the output length in bytes of this message digest algorithm.
+   * 
+   * @return the output length in bytes of this message digest algorithm.
+   */
+  int hashSize();
+
+  /**
+   * Returns the algorithm's (inner) block size in bytes.
+   * 
+   * @return the algorithm's inner block size in bytes.
+   */
+  int blockSize();
+
+  /**
+   * Continues a message digest operation using the input byte.
+   * 
+   * @param b the input byte to digest.
+   */
+  void update(byte b);
+
+  /**
+   * Continues a message digest operation, by filling the buffer, processing
+   * data in the algorithm's HASH_SIZE-bit block(s), updating the context and
+   * count, and buffering the remaining bytes in buffer for the next operation.
+   * 
+   * @param in the input block.
+   */
+  void update(byte[] in);
+
+  /**
+   * Continues a message digest operation, by filling the buffer, processing
+   * data in the algorithm's HASH_SIZE-bit block(s), updating the context and
+   * count, and buffering the remaining bytes in buffer for the next operation.
+   * 
+   * @param in the input block.
+   * @param offset start of meaningful bytes in input block.
+   * @param length number of bytes, in input block, to consider.
+   */
+  void update(byte[] in, int offset, int length);
+
+  /**
+   * Completes the message digest by performing final operations such as padding
+   * and resetting the instance.
+   * 
+   * @return the array of bytes representing the hash value.
+   */
+  byte[] digest();
+
+  /**
+   * Resets the current context of this instance clearing any eventually cached
+   * intermediary values.
+   */
+  void reset();
+
+  /**
+   * A basic test. Ensures that the digest of a pre-determined message is equal
+   * to a known pre-computed value.
+   * 
+   * @return <code>true</code> if the implementation passes a basic self-test.
+   *         Returns <code>false</code> otherwise.
+   */
+  boolean selfTest();
+
+  /**
+   * Returns a clone copy of this instance.
+   * 
+   * @return a clone copy of this instance.
+   */
+  Object clone();
+}