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
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if you have obtained the source via the command 'git clone',
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1 files changed, 236 insertions, 0 deletions

diff --git a/libjava/classpath/javax/security/auth/callback/ChoiceCallback.java b/libjava/classpath/javax/security/auth/callback/ChoiceCallback.java
new file mode 100644
index 000000000..30bddd559
--- /dev/null
+++ b/libjava/classpath/javax/security/auth/callback/ChoiceCallback.java
@@ -0,0 +1,236 @@
+/* ChoiceCallback.java -- callback for a choice of values.
+   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>ChoiceCallback</code> to the <code>handle()</code> method of a
+ * {@link CallbackHandler} to display a list of choices and to retrieve the
+ * selected choice(s).
+ *
+ * @see CallbackHandler
+ */
+public class ChoiceCallback implements Callback, Serializable
+{
+
+  // Constants and variables
+  // -------------------------------------------------------------------------
+
+  /**
+   * @serial
+   * @since 1.4
+   */
+  private String prompt;
+
+  /**
+   * @serial the list of choices.
+   * @since 1.4
+   */
+  private String[] choices;
+
+  /**
+   * @serial the choice to be used as the default choice.
+   * @since 1.4
+   */
+  private int defaultChoice;
+
+  /**
+   * @serial whether multiple selections are allowed from the list of choices.
+   * @since 1.4
+   */
+  private boolean multipleSelectionsAllowed;
+
+  /**
+   * @serial the selected choices, represented as indexes into the choices list.
+   * @since 1.4
+   */
+  private int[] selections;
+
+  // Constructor(s)
+  //--------------------------------------------------------------------------
+
+  /**
+   * Construct a <code>ChoiceCallback</code> with a prompt, a list of choices,
+   * a default choice, and a boolean specifying whether or not multiple
+   * selections from the list of choices are allowed.
+   *
+   * @param prompt the prompt used to describe the list of choices.
+   * @param choices the list of choices.
+   * @param defaultChoice the choice to be used as the default choice when the
+   * list of choices are displayed. This value is represented as an index into
+   * the <code>choices</code> array.
+   * @param multipleSelectionsAllowed boolean specifying whether or not
+   * multiple selections can be made from the list of choices.
+   * @throws IllegalArgumentException if <code>prompt</code> is <code>null</code>,
+   * if <code>prompt</code> has a length of <code>0</code>, if <code>choices</code>
+   * is <code>null</code>, if <code>choices</code> has a length of <code>0</code>,
+   * if any element from <code>choices</code> is <code>null</code>, if any
+   * element from <code>choices</code> has a length of <code>0</code> or if
+   * <code>defaultChoice</code> does not fall within the array boundaries of
+   * <code>choices</code>.
+   */
+  public ChoiceCallback(String prompt, String[] choices, int defaultChoice,
+                        boolean multipleSelectionsAllowed)
+  {
+    super();
+
+    setPrompt(prompt);
+    setChoices(choices);
+    if (defaultChoice < 0 || defaultChoice >= this.choices.length)
+      {
+        throw new IllegalArgumentException("default choice is out of bounds");
+      }
+    this.defaultChoice = defaultChoice;
+    this.multipleSelectionsAllowed = multipleSelectionsAllowed;
+  }
+
+  // Instance methods
+  // -------------------------------------------------------------------------
+
+  /**
+   * Get the prompt.
+   *
+   * @return the prompt.
+   */
+  public String getPrompt()
+  {
+    return prompt;
+  }
+
+  /**
+   * Get the list of choices.
+   *
+   * @return the list of choices.
+   */
+  public String[] getChoices()
+  {
+    return choices;
+  }
+
+  /**
+   * Get the defaultChoice.
+   *
+   * @return the defaultChoice, represented as an index into the choices list.
+   */
+  public int getDefaultChoice()
+  {
+    return defaultChoice;
+  }
+
+  /**
+   * Get the boolean determining whether multiple selections from the choices
+   * list are allowed.
+   *
+   * @return whether multiple selections are allowed.
+   */
+  public boolean allowMultipleSelections()
+  {
+    return multipleSelectionsAllowed;
+  }
+
+  /**
+   * Set the selected choice.
+   *
+   * @param selection the selection represented as an index into the choices
+   * list.
+   * @see #getSelectedIndexes()
+   */
+  public void setSelectedIndex(int selection)
+  {
+    this.selections = new int[1];
+    this.selections[0] = selection;
+  }
+
+  /**
+   * Set the selected choices.
+   *
+   * @param selections the selections represented as indexes into the choices
+   * list.
+   * @throws UnsupportedOperationException if multiple selections are not
+   * allowed, as determined by <code>allowMultipleSelections</code>.
+   * @see #getSelectedIndexes()
+   */
+  public void setSelectedIndexes(int[] selections)
+  {
+    if (!multipleSelectionsAllowed)
+      {
+        throw new UnsupportedOperationException("not allowed");
+      }
+
+    this.selections = selections;
+  }
+
+  /**
+   * Get the selected choices.
+   *
+   * @return the selected choices, represented as indexes into the choices list.
+   * @see #setSelectedIndexes(int[])
+   */
+  public int[] getSelectedIndexes()
+  {
+    return selections;
+  }
+
+  private void setPrompt(String prompt) throws IllegalArgumentException
+  {
+    if ((prompt == null) || (prompt.length() == 0))
+      {
+        throw new IllegalArgumentException("invalid prompt");
+      }
+    this.prompt = prompt;
+  }
+
+  private void setChoices(String[] choices) throws IllegalArgumentException
+  {
+    if (choices == null || choices.length == 0)
+      {
+        throw new IllegalArgumentException("invalid choices");
+      }
+    for (int i = 0; i < choices.length; i++)
+      {
+        if (choices[i] == null || choices[i].length() == 0)
+          {
+            throw new IllegalArgumentException("invalid choice at index #"+i);
+          }
+      }
+    this.choices = choices;
+  }
+}