--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/test/javax/xml/jaxp/unittest/util/BOMInputStream.java	Tue Nov 18 12:01:27 2014 -0800
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package util;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.util.HashMap;
+import java.util.Map;
+
+public class BOMInputStream {
+        public static InputStream createStream(String charset, InputStream input) {
+
+                        try {
+                                byte[] content = read(input).getBytes(charset);
+                                byte[] head = bom.get(charset);
+                                if (head == null)
+                                        return null;
+                                byte[] result = new byte[head.length + content.length];
+                                System.arraycopy(head, 0, result, 0, head.length);
+                                System.arraycopy(content, 0, result, head.length, content.length);
+                                return new ByteArrayInputStream(result);
+                        } catch (UnsupportedEncodingException e) {
+                                return null;
+                        }
+        }
+
+        private static String read(InputStream input)
+        {
+                try {
+                        StringBuffer sb = new StringBuffer();
+                        InputStreamReader r = new InputStreamReader(new BufferedInputStream(input));
+                        int c = 0;
+                        while ((c = r.read()) != -1)
+                                sb.append((char)c);
+                        return sb.toString();
+                } catch (IOException e) {
+                        return "";
+                } finally {
+                        try {
+                                input.close();
+                        } catch (IOException e)
+                        {}
+                }
+        }
+
+
+        private final static Map<String, byte[]> bom = new HashMap();
+        private final static byte[][] bomBytes = {{(byte)0xEF, (byte)0xBB, (byte)0xBF},
+                                        {(byte)0xFE, (byte)0xFF}};
+
+        static {
+                bom.put("UTF-8", bomBytes[0]);
+                bom.put("UTF-16BE", bomBytes[1]);
+        }
+
+}