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diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/ZipEncodingHelper.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/ZipEncodingHelper.java
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--- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/ZipEncodingHelper.java
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@@ -1,252 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-package org.apache.tools.zip;
-
-import java.nio.ByteBuffer;
-import java.nio.charset.Charset;
-import java.nio.charset.UnsupportedCharsetException;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Static helper functions for robustly encoding filenames in zip files.
- */
-public abstract class ZipEncodingHelper {
-
- /**
- * A class, which holds the high characters of a simple encoding
- * and lazily instantiates a Simple8BitZipEncoding instance in a
- * thread-safe manner.
- */
- private static class SimpleEncodingHolder {
-
- private final char [] highChars;
- private Simple8BitZipEncoding encoding;
-
- /**
- * Instantiate a simple encoding holder.
- *
- * @param highChars The characters for byte codes 128 to 255.
- *
- * @see Simple8BitZipEncoding#Simple8BitZipEncoding(char[])
- */
- SimpleEncodingHolder(final char [] highChars) {
- this.highChars = highChars;
- }
-
- /**
- * @return The associated {@link Simple8BitZipEncoding}, which
- * is instantiated if not done so far.
- */
- public synchronized Simple8BitZipEncoding getEncoding() {
- if (this.encoding == null) {
- this.encoding = new Simple8BitZipEncoding(this.highChars);
- }
- return this.encoding;
- }
- }
-
- private static final Map<String, SimpleEncodingHolder> simpleEncodings;
-
- static {
- final Map<String, SimpleEncodingHolder> se =
- new HashMap<String, SimpleEncodingHolder>();
-
- final char[] cp437_high_chars =
- new char[] {0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0,
- 0x00e5, 0x00e7, 0x00ea, 0x00eb, 0x00e8, 0x00ef,
- 0x00ee, 0x00ec, 0x00c4, 0x00c5, 0x00c9, 0x00e6,
- 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
- 0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5,
- 0x20a7, 0x0192, 0x00e1, 0x00ed, 0x00f3, 0x00fa,
- 0x00f1, 0x00d1, 0x00aa, 0x00ba, 0x00bf, 0x2310,
- 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
- 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561,
- 0x2562, 0x2556, 0x2555, 0x2563, 0x2551, 0x2557,
- 0x255d, 0x255c, 0x255b, 0x2510, 0x2514, 0x2534,
- 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
- 0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550,
- 0x256c, 0x2567, 0x2568, 0x2564, 0x2565, 0x2559,
- 0x2558, 0x2552, 0x2553, 0x256b, 0x256a, 0x2518,
- 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580,
- 0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3,
- 0x00b5, 0x03c4, 0x03a6, 0x0398, 0x03a9, 0x03b4,
- 0x221e, 0x03c6, 0x03b5, 0x2229, 0x2261, 0x00b1,
- 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248,
- 0x00b0, 0x2219, 0x00b7, 0x221a, 0x207f, 0x00b2,
- 0x25a0, 0x00a0};
-
- final SimpleEncodingHolder cp437 = new SimpleEncodingHolder(cp437_high_chars);
-
- se.put("CP437", cp437);
- se.put("Cp437", cp437);
- se.put("cp437", cp437);
- se.put("IBM437", cp437);
- se.put("ibm437", cp437);
-
- final char[] cp850_high_chars =
- new char[] {0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0,
- 0x00e5, 0x00e7, 0x00ea, 0x00eb, 0x00e8, 0x00ef,
- 0x00ee, 0x00ec, 0x00c4, 0x00c5, 0x00c9, 0x00e6,
- 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
- 0x00ff, 0x00d6, 0x00dc, 0x00f8, 0x00a3, 0x00d8,
- 0x00d7, 0x0192, 0x00e1, 0x00ed, 0x00f3, 0x00fa,
- 0x00f1, 0x00d1, 0x00aa, 0x00ba, 0x00bf, 0x00ae,
- 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
- 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00c1,
- 0x00c2, 0x00c0, 0x00a9, 0x2563, 0x2551, 0x2557,
- 0x255d, 0x00a2, 0x00a5, 0x2510, 0x2514, 0x2534,
- 0x252c, 0x251c, 0x2500, 0x253c, 0x00e3, 0x00c3,
- 0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550,
- 0x256c, 0x00a4, 0x00f0, 0x00d0, 0x00ca, 0x00cb,
- 0x00c8, 0x0131, 0x00cd, 0x00ce, 0x00cf, 0x2518,
- 0x250c, 0x2588, 0x2584, 0x00a6, 0x00cc, 0x2580,
- 0x00d3, 0x00df, 0x00d4, 0x00d2, 0x00f5, 0x00d5,
- 0x00b5, 0x00fe, 0x00de, 0x00da, 0x00db, 0x00d9,
- 0x00fd, 0x00dd, 0x00af, 0x00b4, 0x00ad, 0x00b1,
- 0x2017, 0x00be, 0x00b6, 0x00a7, 0x00f7, 0x00b8,
- 0x00b0, 0x00a8, 0x00b7, 0x00b9, 0x00b3, 0x00b2,
- 0x25a0, 0x00a0};
-
- final SimpleEncodingHolder cp850 = new SimpleEncodingHolder(cp850_high_chars);
-
- se.put("CP850", cp850);
- se.put("Cp850", cp850);
- se.put("cp850", cp850);
- se.put("IBM850", cp850);
- se.put("ibm850", cp850);
- simpleEncodings = Collections.unmodifiableMap(se);
- }
-
- /**
- * Grow a byte buffer, so it has a minimal capacity or at least
- * the double capacity of the original buffer
- *
- * @param b The original buffer.
- * @param newCapacity The minimal requested new capacity.
- * @return A byte buffer <code>r</code> with
- * <code>r.capacity() = max(b.capacity()*2,newCapacity)</code> and
- * all the data contained in <code>b</code> copied to the beginning
- * of <code>r</code>.
- *
- */
- static ByteBuffer growBuffer(final ByteBuffer b, final int newCapacity) {
- b.limit(b.position());
- b.rewind();
-
- final int c2 = b.capacity() * 2;
- final ByteBuffer on = ByteBuffer.allocate(c2 < newCapacity ? newCapacity : c2);
-
- on.put(b);
- return on;
- }
-
-
- /**
- * The hexadecimal digits <code>0,...,9,A,...,F</code> encoded as
- * ASCII bytes.
- */
- private static final byte[] HEX_DIGITS =
- new byte [] {
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41,
- 0x42, 0x43, 0x44, 0x45, 0x46
- };
-
- /**
- * Append <code>%Uxxxx</code> to the given byte buffer.
- * The caller must assure, that <code>bb.remaining()&gt;=6</code>.
- *
- * @param bb The byte buffer to write to.
- * @param c The character to write.
- */
- static void appendSurrogate(final ByteBuffer bb, final char c) {
-
- bb.put((byte) '%');
- bb.put((byte) 'U');
-
- bb.put(HEX_DIGITS[(c >> 12)&0x0f]);
- bb.put(HEX_DIGITS[(c >> 8)&0x0f]);
- bb.put(HEX_DIGITS[(c >> 4)&0x0f]);
- bb.put(HEX_DIGITS[c & 0x0f]);
- }
-
-
- /**
- * name of the encoding UTF-8
- */
- static final String UTF8 = "UTF8";
-
- /**
- * variant name of the encoding UTF-8 used for comparisons.
- */
- private static final String UTF_DASH_8 = "utf-8";
-
- /**
- * name of the encoding UTF-8
- */
- static final ZipEncoding UTF8_ZIP_ENCODING = new FallbackZipEncoding(UTF8);
-
- /**
- * Instantiates a zip encoding.
- *
- * @param name The name of the zip encoding. Specify {@code null} for
- * the platform's default encoding.
- * @return A zip encoding for the given encoding name.
- */
- public static ZipEncoding getZipEncoding(final String name) {
-
- // fallback encoding is good enough for utf-8.
- if (isUTF8(name)) {
- return UTF8_ZIP_ENCODING;
- }
-
- if (name == null) {
- return new FallbackZipEncoding();
- }
-
- final SimpleEncodingHolder h = simpleEncodings.get(name);
-
- if (h!=null) {
- return h.getEncoding();
- }
-
- try {
-
- final Charset cs = Charset.forName(name);
- return new NioZipEncoding(cs);
-
- } catch (final UnsupportedCharsetException e) {
- return new FallbackZipEncoding(name);
- }
- }
-
- /**
- * Whether a given encoding - or the platform's default encoding
- * if the parameter is null - is UTF-8.
- */
- static boolean isUTF8(String encoding) {
- if (encoding == null) {
- // check platform's default encoding
- encoding = System.getProperty("file.encoding");
- }
- return UTF8.equalsIgnoreCase(encoding)
- || UTF_DASH_8.equalsIgnoreCase(encoding);
- }
-}