--- a/jaxp/src/java.xml/share/classes/com/sun/org/apache/regexp/internal/ReaderCharacterIterator.java	Sat May 14 08:03:03 2016 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,164 +0,0 @@
-/*
- * reserved comment block
- * DO NOT REMOVE OR ALTER!
- */
-/*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed 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 com.sun.org.apache.regexp.internal;
-
-import java.io.Reader;
-import java.io.IOException;
-
-/**
- * Encapsulates java.io.Reader as CharacterIterator
- *
- * @author <a href="mailto:ales.novak@netbeans.com">Ales Novak</a>
- */
-public final class ReaderCharacterIterator implements CharacterIterator
-{
-    /** Underlying reader */
-    private final Reader reader;
-
-    /** Buffer of read chars */
-    private final StringBuffer buff;
-
-    /** read end? */
-    private boolean closed;
-
-    /** @param reader a Reader, which is parsed */
-    public ReaderCharacterIterator(Reader reader)
-    {
-        this.reader = reader;
-        this.buff = new StringBuffer(512);
-        this.closed = false;
-    }
-
-    /** @return a substring */
-    public String substring(int beginIndex, int endIndex)
-    {
-        try
-        {
-            ensure(endIndex);
-            return buff.toString().substring(beginIndex, endIndex);
-        }
-        catch (IOException e)
-        {
-            throw new StringIndexOutOfBoundsException(e.getMessage());
-        }
-    }
-
-    /** @return a substring */
-    public String substring(int beginIndex)
-    {
-        try
-        {
-            readAll();
-            return buff.toString().substring(beginIndex);
-        }
-        catch (IOException e)
-        {
-            throw new StringIndexOutOfBoundsException(e.getMessage());
-        }
-    }
-
-    /** @return a character at the specified position. */
-    public char charAt(int pos)
-    {
-        try
-        {
-            ensure(pos);
-            return buff.charAt(pos);
-        }
-        catch (IOException e)
-        {
-            throw new StringIndexOutOfBoundsException(e.getMessage());
-        }
-    }
-
-    /** @return <tt>true</tt> iff if the specified index is after the end of the character stream */
-    public boolean isEnd(int pos)
-    {
-        if (buff.length() > pos)
-        {
-            return false;
-        }
-        else
-        {
-            try
-            {
-                ensure(pos);
-                return (buff.length() <= pos);
-            }
-            catch (IOException e)
-            {
-                throw new StringIndexOutOfBoundsException(e.getMessage());
-            }
-        }
-    }
-
-    /** Reads n characters from the stream and appends them to the buffer */
-    private int read(int n) throws IOException
-    {
-        if (closed)
-        {
-            return 0;
-        }
-
-        char[] c = new char[n];
-        int count = 0;
-        int read = 0;
-
-        do
-        {
-            read = reader.read(c);
-            if (read < 0) // EOF
-            {
-                closed = true;
-                break;
-            }
-            count += read;
-            buff.append(c, 0, read);
-        }
-        while (count < n);
-
-        return count;
-    }
-
-    /** Reads rest of the stream. */
-    private void readAll() throws IOException
-    {
-        while(! closed)
-        {
-            read(1000);
-        }
-    }
-
-    /** Reads chars up to the idx */
-    private void ensure(int idx) throws IOException
-    {
-        if (closed)
-        {
-            return;
-        }
-
-        if (idx < buff.length())
-        {
-            return;
-        }
-        read(idx + 1 - buff.length());
-    }
-}