obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
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if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 168 insertions, 0 deletions

diff --git a/libjava/classpath/javax/security/auth/callback/PasswordCallback.java b/libjava/classpath/javax/security/auth/callback/PasswordCallback.java
new file mode 100644
index 000000000..6309aacba
--- /dev/null
+++ b/libjava/classpath/javax/security/auth/callback/PasswordCallback.java
@@ -0,0 +1,168 @@
+/* PasswordCallback.java -- callback for passwords.
+   Copyright (C) 2003, Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, 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 javax.security.auth.callback;
+
+import java.io.Serializable;
+
+/**
+ * Underlying security services instantiate and pass a <code>PasswordCallback</code>
+ * to the <code>handle()</code> method of a {@link CallbackHandler} to retrieve
+ * password information.
+ *
+ * @see CallbackHandler,
+ */
+public class PasswordCallback implements Callback, Serializable
+{
+
+  // Constants and variables
+  // -------------------------------------------------------------------------
+
+  /**
+   * @serial
+   * @since 1.4
+   */
+  private String prompt;
+
+  /**
+   * @serial
+   * @since 1.4
+   */
+  private boolean echoOn;
+
+  /**
+   * @serial
+   * @since 1.4
+   */
+  private char[] inputPassword;
+
+  // Constructor(s)
+  // -------------------------------------------------------------------------
+
+  /**
+   * Construct a <code>PasswordCallback</code> with a prompt and a boolean
+   * specifying whether the password should be displayed as it is being typed.
+   *
+   * @param prompt the prompt used to request the password.
+   * @param echoOn <code>true</code> if the password should be displayed as it
+   * is being typed.
+   * @throws IllegalArgumentException if <code>prompt</code> is <code>null</code>
+   * or if <code>prompt</code> has a length of <code>0</code>.
+   */
+  public PasswordCallback(String prompt, boolean echoOn)
+  {
+    super();
+
+    setPrompt(prompt);
+    this.echoOn = echoOn;
+  }
+
+  // Class methods
+  // -------------------------------------------------------------------------
+
+  // Instance methods
+  // -------------------------------------------------------------------------
+
+  /**
+   * Get the prompt.
+   *
+   * @return the prompt.
+   */
+  public String getPrompt()
+  {
+    return prompt;
+  }
+
+  /**
+   * Return whether the password should be displayed as it is being typed.
+   *
+   * @return the whether the password should be displayed as it is being typed.
+   */
+  public boolean isEchoOn()
+  {
+    return echoOn;
+  }
+
+  /**
+   * <p>Set the retrieved password.</p>
+   *
+   * <p>This method makes a copy of the input password before storing it.</p>
+   *
+   * @param password the retrieved password, which may be <code>null</code>.
+   * @see #getPassword()
+   */
+  public void setPassword(char[] password)
+  {
+    inputPassword = (password == null ? null : (char[]) password.clone());
+  }
+
+  /**
+   * <p>Get the retrieved password.</p>
+   *
+   * <p>This method returns a copy of the retrieved password.</p>
+   *
+   * @return the retrieved password, which may be <code>null</code>.
+   * @see #setPassword(char[])
+   */
+  public char[] getPassword()
+  {
+    return (inputPassword == null ? null : (char[]) inputPassword.clone());
+  }
+
+  /** Clear the retrieved password. */
+  public void clearPassword()
+  {
+    if (inputPassword != null)
+      {
+        for (int i = 0; i < inputPassword.length; i++)
+          {
+            inputPassword[i] = '\0';
+          }
+        inputPassword = null;
+      }
+  }
+
+  private void setPrompt(String prompt) throws IllegalArgumentException
+  {
+    if ((prompt == null) || (prompt.length() == 0))
+      {
+        throw new IllegalArgumentException("invalid prompt");
+      }
+    this.prompt = prompt;
+  }
+}