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Basic utilities to compensate shortcomings of Java SE. Part of chicory.
There is a newer version: 0.36
/*
 * Copyright (c) 2012, Victor Nazarov 
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Victor Nazarov nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.github.sviperll;

import java.util.Arrays;

public class ByteArray implements Comparable {
    private final byte[] a;
    public ByteArray(byte... a) {
        this.a = Arrays.copyOf(a, a.length);
    }

    public byte[] byteArrayValue() {
        return Arrays.copyOf(a, a.length);
    }

    @Override
    public boolean equals(Object thatObject) {
        if (this == thatObject)
            return true;
        else {
            if (!(thatObject instanceof ByteArray))
                throw new IllegalArgumentException("Is not ByteArray: " + thatObject);
            else {
                ByteArray that = (ByteArray)thatObject;
                return this.compareTo(that) == 0;
            }
        }
    }

    @Override
    public int hashCode() {
        return Arrays.hashCode(this.a);
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("new ByteArray(new byte[] {");
        sb.append(a[0]);
        for (int i = 1; i < a.length; i++) {
            sb.append(", ");
            sb.append(a[i]);
        }
        sb.append("})");
        return sb.toString();
    }

    @Override
    public int compareTo(ByteArray that) {
        int thisLength = this.byteArrayValue().length;
        int res = thisLength - that.byteArrayValue().length;
        if (res != 0)
            return res;
        for (int i = 0; i < thisLength; i++) {
            res = this.byteArrayValue()[i] - that.byteArrayValue()[i];
            if (res != 0)
                return res;
        }
        return 0;
    }
}