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
to the one extracted from the above tarball.

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, 319 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/java/util/prefs/NodeWriter.java b/libjava/classpath/gnu/java/util/prefs/NodeWriter.java
new file mode 100644
index 000000000..3e4f972ed
--- /dev/null
+++ b/libjava/classpath/gnu/java/util/prefs/NodeWriter.java
@@ -0,0 +1,319 @@
+/* NodeWriter - Writes and exports preferences nodes to files
+   Copyright (C) 2001, 2006 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 gnu.java.util.prefs;
+
+import gnu.java.lang.CPStringBuilder;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+
+import java.util.StringTokenizer;
+
+import java.util.prefs.*;
+
+/**
+ * Writes and exports preferences nodes to files
+ *
+ * @author Mark Wielaard (mark@klomp.org)
+ */
+public class NodeWriter {
+
+    /** The Preferences node to write. */
+    private final Preferences prefs;
+
+    /** The bufferedWriter to write the node to. */
+    private final BufferedWriter bw;
+
+    /**
+     * True if the complete sub tree should be written,
+     * false if only the node should be written.
+     */
+    private boolean subtree;
+
+    /**
+     * Creates a new NodeWriter for the given preferences node and
+     * outputstream. Creates a new OutputStreamWriter.
+     */
+    public NodeWriter(Preferences prefs, OutputStream os) {
+        this.prefs = prefs;
+        Writer w;
+        try
+          {
+            w = new OutputStreamWriter(os, "UTF-8");
+          }
+        catch (UnsupportedEncodingException uee)
+          {
+            // Shouldn't happen, since we always have UTF-8 available.
+            InternalError ie = new InternalError("UTF-8 encoding missing");
+            ie.initCause(uee);
+            throw ie;
+          }
+        this.bw = new BufferedWriter(w);
+    }
+
+    /**
+     * Writes the preference node plus the complete subtree.
+     */
+    public void writePrefsTree() throws BackingStoreException, IOException {
+        subtree = true;
+        writeHeader();
+        writePreferences();
+        bw.flush();
+    }
+
+    /**
+     * Writes only the preference node.
+     */
+    public void writePrefs() throws BackingStoreException, IOException {
+        subtree = false;
+        writeHeader();
+        writePreferences();
+        bw.flush();
+    }
+
+    /**
+     * Writes the standard header.
+     */
+    private void writeHeader() throws BackingStoreException, IOException {
+        bw.write("<?xml version=\"1.0\"?>");
+        bw.newLine();
+        bw.write("<!DOCTYPE preferences SYSTEM "
+                 + "\"http://java.sun.com/dtd/preferences.dtd\">");
+        bw.newLine();
+        bw.newLine();
+        bw.write("<!-- GNU Classpath java.util.prefs Preferences ");
+
+        if (prefs.isUserNode()) {
+            bw.write("user");
+        } else {
+            bw.write("system");
+        }
+
+        // root node?
+        if (prefs.parent() == null) {
+            bw.write(" root");
+        }
+
+        if (subtree) {
+            bw.write(" tree");
+        } else {
+            bw.write(" node");
+        }
+
+        // no root?
+        if (prefs.parent() != null) {
+            bw.newLine();
+            bw.write("     '");
+            bw.write(prefs.absolutePath());
+            bw.write('\'');
+            bw.newLine();
+        }
+        bw.write(" -->");
+        bw.newLine();
+        bw.newLine();
+    }
+
+    /**
+     * Write the preferences tag and the root.
+     */
+    private void writePreferences() throws BackingStoreException, IOException {
+        bw.write("<preferences>");
+        bw.newLine();
+        writeRoot();
+        bw.write("</preferences>");
+        bw.newLine();
+    }
+
+    private void writeRoot() throws BackingStoreException, IOException {
+        bw.write("  <root type=\"");
+        if (prefs.isUserNode()) {
+            bw.write("user");
+        } else {
+            bw.write("system");
+        }
+        bw.write("\">");
+
+        writeRootMap();
+        writeNode();
+
+        bw.write("  </root>");
+        bw.newLine();
+    }
+
+    private void writeRootMap() throws BackingStoreException, IOException {
+        // Is it a root node?
+        if(prefs.parent() == null && prefs.keys().length > 0) {
+            bw.newLine();
+            writeMap(prefs, 2);
+        } else {
+            bw.write("<map/>");
+            bw.newLine();
+        }
+    }
+
+    /**
+     * Writes all the parents of the preferences node without any entries.
+     * Returns the number of parents written, which has to be used as
+     * argument to <code>writeCloseParents()</code> after writing the node
+     * itself.
+     */
+    private int writeParents() throws IOException {
+        int parents;
+        String path = prefs.absolutePath();
+        int lastslash = path.lastIndexOf("/");
+        if (lastslash > 0) {
+            path = path.substring(1, lastslash);
+            StringTokenizer st = new StringTokenizer(path);
+            parents = st.countTokens();
+
+            for (int i=0; i<parents; i++) {
+                String name = st.nextToken();
+                indent(i+2);
+                bw.write("<node name=\"" + name + "\">");
+                bw.write("<map/>");
+                bw.write("</node>");
+                bw.newLine();
+            }
+        } else {
+            parents = 0;
+        }
+
+        return parents;
+    }
+
+    private void writeCloseParents(int parents) throws IOException {
+        while(parents > 0) {
+            indent(parents+1);
+            bw.write("</node>");
+            bw.newLine();
+            parents--;
+        }
+    }
+
+    private void writeNode() throws BackingStoreException, IOException {
+        int parents = writeParents();
+        // root?
+        int indent;
+        if (prefs.parent() == null) {
+            indent = parents+1;
+        } else {
+            indent = parents+2;
+        }
+        writeNode(prefs, indent);
+        writeCloseParents(parents);
+    }
+
+    private void writeNode(Preferences node, int indent)
+                                    throws BackingStoreException, IOException
+    {
+        // not root?
+        if (node.parent() != null) {
+            indent(indent);
+            bw.write("<node name=\"" + node.name() + "\">");
+            if (node.keys().length > 0) {
+                bw.newLine();
+            }
+            writeMap(node, indent+1);
+        }
+
+        if (subtree) {
+            String[] children = node.childrenNames();
+            for (int i=0; i<children.length; i++) {
+                Preferences child = node.node(children[i]);
+                writeNode(child, indent+1);
+            }
+        }
+
+        // not root?
+        if (node.parent() != null) {
+            indent(indent);
+            bw.write("</node>");
+            bw.newLine();
+        }
+    }
+
+    private void writeMap(Preferences node, int indent)
+                                    throws BackingStoreException, IOException
+    {
+        // construct String used for indentation
+        CPStringBuilder indentBuffer = new CPStringBuilder(2*indent);
+        for (int i=0; i < indent; i++)
+            indentBuffer.append("  ");
+        String indentString = indentBuffer.toString();
+
+        if (node.keys().length > 0) {
+            bw.write(indentString);
+            bw.write("<map>");
+            bw.newLine();
+            writeEntries(node, indentString + "  ");
+            bw.write(indentString);
+            bw.write("</map>");
+        } else {
+            bw.write("<map/>");
+        }
+        bw.newLine();
+    }
+
+    private void writeEntries(Preferences node, String indent)
+                                    throws BackingStoreException, IOException
+    {
+        String[] keys = node.keys();
+        for(int i = 0; i < keys.length; i++) {
+            String value = node.get(keys[i], null);
+            if (value == null) {
+                throw new BackingStoreException("null value for key '"
+                                                + keys[i] + "'");
+            }
+
+            bw.write(indent);
+            bw.write("<entry key=\"" + keys[i] + "\""
+                    + " value=\"" + value + "\"/>");
+            bw.newLine();
+        }
+    }
+
+    private void indent(int x) throws IOException {
+        for (int i=0; i<x; i++) {
+            bw.write("  ");
+        }
+    }
+}