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diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java
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+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/zip/FallbackZipEncoding.java
@@ -0,0 +1,94 @@
+/*
+ * 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.io.IOException;
+import java.nio.ByteBuffer;
+
+/**
+ * A fallback ZipEncoding, which uses a java.io means to encode names.
+ *
+ * <p>This implementation is not favorable for encodings other than
+ * utf-8, because java.io encodes unmappable character as question
+ * marks leading to unreadable ZIP entries on some operating
+ * systems.</p>
+ *
+ * <p>Furthermore this implementation is unable to tell whether a
+ * given name can be safely encoded or not.</p>
+ *
+ * <p>This implementation acts as a last resort implementation, when
+ * neither {@link Simple8BitZipEnoding} nor {@link NioZipEncoding} is
+ * available.</p>
+ *
+ * <p>The methods of this class are reentrant.</p>
+ */
+class FallbackZipEncoding implements ZipEncoding {
+    private final String charset;
+
+    /**
+     * Construct a fallback zip encoding, which uses the platform's
+     * default charset.
+     */
+    public FallbackZipEncoding() {
+        this.charset = null;
+    }
+
+    /**
+     * Construct a fallback zip encoding, which uses the given charset.
+     *
+     * @param charset The name of the charset or {@code null} for
+     *                the platform's default character set.
+     */
+    public FallbackZipEncoding(final String charset) {
+        this.charset = charset;
+    }
+
+    /**
+     * @see
+     * org.apache.tools.zip.ZipEncoding#canEncode(java.lang.String)
+     */
+    public boolean canEncode(final String name) {
+        return true;
+    }
+
+    /**
+     * @see
+     * org.apache.tools.zip.ZipEncoding#encode(java.lang.String)
+     */
+    public ByteBuffer encode(final String name) throws IOException {
+        if (this.charset == null) { // i.e. use default charset, see no-args constructor
+            return ByteBuffer.wrap(name.getBytes());
+        } else {
+            return ByteBuffer.wrap(name.getBytes(this.charset));
+        }
+    }
+
+    /**
+     * @see
+     * org.apache.tools.zip.ZipEncoding#decode(byte[])
+     */
+    public String decode(final byte[] data) throws IOException {
+        if (this.charset == null) { // i.e. use default charset, see no-args constructor
+            return new String(data);
+        } else {
+            return new String(data,this.charset);
+        }
+    }
+}