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The Apache Commons Codec component contains encoders and decoders for various formats such as Base16, Base32, Base64, digest, and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities. This is a port for GWT, which enables program, to use Apache Commons Codec also in the frontend compiled by the gwt compiler to java-script.

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/*
 * Copyright (c) 2000, 2013, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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 */

// -- This file was mechanically generated: Do not edit! -- //

package java.nio;


/**

 * A read/write HeapByteBuffer.






 */

class HeapByteBuffer
    extends ByteBuffer
{

    // For speed these fields are actually declared in X-Buffer;
    // these declarations are here as documentation
    /*

    protected final byte[] hb;
    protected final int offset;

    */

    HeapByteBuffer(int cap, int lim) {            // package-private

        super(-1, 0, lim, cap, new byte[cap], 0);
        /*
        hb = new byte[cap];
        offset = 0;
        */




    }

    HeapByteBuffer(byte[] buf, int off, int len) { // package-private

        super(-1, off, off + len, buf.length, buf, 0);
        /*
        hb = buf;
        offset = 0;
        */




    }

    protected HeapByteBuffer(byte[] buf,
                                   int mark, int pos, int lim, int cap,
                                   int off)
    {

        super(mark, pos, lim, cap, buf, off);
        /*
        hb = buf;
        offset = off;
        */




    }

    public ByteBuffer slice() {
        return new HeapByteBuffer(hb,
                                        -1,
                                        0,
                                        this.remaining(),
                                        this.remaining(),
                                        this.position() + offset);
    }

    public ByteBuffer duplicate() {
        return new HeapByteBuffer(hb,
                                        this.markValue(),
                                        this.position(),
                                        this.limit(),
                                        this.capacity(),
                                        offset);
    }

    public ByteBuffer asReadOnlyBuffer() {

        return new HeapByteBuffer(hb,
                                     this.markValue(),
                                     this.position(),
                                     this.limit(),
                                     this.capacity(),
                                     offset);



    }



    protected int ix(int i) {
        return i + offset;
    }

    public byte get() {
        return hb[ix(nextGetIndex())];
    }

    public byte get(int i) {
        return hb[ix(checkIndex(i))];
    }







    public ByteBuffer get(byte[] dst, int offset, int length) {
        checkBounds(offset, length, dst.length);
        if (length > remaining())
            throw new BufferUnderflowException();
        System.arraycopy(hb, ix(position()), dst, offset, length);
        position(position() + length);
        return this;
    }

    public boolean isDirect() {
        return false;
    }



    public boolean isReadOnly() {
        return false;
    }

    public ByteBuffer put(byte x) {

        hb[ix(nextPutIndex())] = x;
        return this;



    }

    public ByteBuffer put(int i, byte x) {

        hb[ix(checkIndex(i))] = x;
        return this;



    }

    public ByteBuffer put(byte[] src, int offset, int length) {

        checkBounds(offset, length, src.length);
        if (length > remaining())
            throw new BufferOverflowException();
        System.arraycopy(src, offset, hb, ix(position()), length);
        position(position() + length);
        return this;



    }

    public ByteBuffer put(ByteBuffer src) {

        if (src instanceof HeapByteBuffer) {
            if (src == this)
                throw new IllegalArgumentException();
            HeapByteBuffer sb = (HeapByteBuffer)src;
            int n = sb.remaining();
            if (n > remaining())
                throw new BufferOverflowException();
            System.arraycopy(sb.hb, sb.ix(sb.position()),
                             hb, ix(position()), n);
            sb.position(sb.position() + n);
            position(position() + n);
        } else if (src.isDirect()) {
            int n = src.remaining();
            if (n > remaining())
                throw new BufferOverflowException();
            src.get(hb, ix(position()), n);
            position(position() + n);
        } else {
            super.put(src);
        }
        return this;



    }

    public ByteBuffer compact() {

        System.arraycopy(hb, ix(position()), hb, ix(0), remaining());
        position(remaining());
        limit(capacity());
        discardMark();
        return this;



    }





    byte _get(int i) {                          // package-private
        return hb[i];
    }

    void _put(int i, byte b) {                  // package-private

        hb[i] = b;



    }

    // char



    public char getChar() {
        return Bits.getChar(this, ix(nextGetIndex(2)), bigEndian);
    }

    public char getChar(int i) {
        return Bits.getChar(this, ix(checkIndex(i, 2)), bigEndian);
    }



    public ByteBuffer putChar(char x) {

        Bits.putChar(this, ix(nextPutIndex(2)), x, bigEndian);
        return this;



    }

    public ByteBuffer putChar(int i, char x) {

        Bits.putChar(this, ix(checkIndex(i, 2)), x, bigEndian);
        return this;



    }


    // short



    public short getShort() {
        return Bits.getShort(this, ix(nextGetIndex(2)), bigEndian);
    }

    public short getShort(int i) {
        return Bits.getShort(this, ix(checkIndex(i, 2)), bigEndian);
    }



    public ByteBuffer putShort(short x) {

        Bits.putShort(this, ix(nextPutIndex(2)), x, bigEndian);
        return this;



    }

    public ByteBuffer putShort(int i, short x) {

        Bits.putShort(this, ix(checkIndex(i, 2)), x, bigEndian);
        return this;



    }


    // int



    public int getInt() {
        return Bits.getInt(this, ix(nextGetIndex(4)), bigEndian);
    }

    public int getInt(int i) {
        return Bits.getInt(this, ix(checkIndex(i, 4)), bigEndian);
    }



    public ByteBuffer putInt(int x) {

        Bits.putInt(this, ix(nextPutIndex(4)), x, bigEndian);
        return this;



    }

    public ByteBuffer putInt(int i, int x) {

        Bits.putInt(this, ix(checkIndex(i, 4)), x, bigEndian);
        return this;



    }


    // long



    public long getLong() {
        return Bits.getLong(this, ix(nextGetIndex(8)), bigEndian);
    }

    public long getLong(int i) {
        return Bits.getLong(this, ix(checkIndex(i, 8)), bigEndian);
    }



    public ByteBuffer putLong(long x) {

        Bits.putLong(this, ix(nextPutIndex(8)), x, bigEndian);
        return this;



    }

    public ByteBuffer putLong(int i, long x) {

        Bits.putLong(this, ix(checkIndex(i, 8)), x, bigEndian);
        return this;



    }


    // float



    public float getFloat() {
        return Bits.getFloat(ix(nextGetIndex(4)), bigEndian);
    }

    public float getFloat(int i) {
        return Bits.getFloat(ix(checkIndex(i, 4)), bigEndian);
    }



    public ByteBuffer putFloat(float x) {

        Bits.putFloat(ix(nextPutIndex(4)), x, bigEndian);
        return this;



    }

    public ByteBuffer putFloat(int i, float x) {

        Bits.putFloat(ix(checkIndex(i, 4)), x, bigEndian);
        return this;



    }


    // double



    public double getDouble() {
        return Bits.getDouble(ix(nextGetIndex(8)), bigEndian);
    }

    public double getDouble(int i) {
        return Bits.getDouble(ix(checkIndex(i, 8)), bigEndian);
    }



    public ByteBuffer putDouble(double x) {

        Bits.putDouble(ix(nextPutIndex(8)), x, bigEndian);
        return this;



    }

    public ByteBuffer putDouble(int i, double x) {

        Bits.putDouble(ix(checkIndex(i, 8)), x, bigEndian);
        return this;



    }
}




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