metadata-drivers/etcd/src/main/java/org/apache/bookkeeper/metadata/etcd/EtcdUtils.java [178:209]:
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    public static long toLong(byte[] memory, int index) {
        return ((long) memory[index] & 0xff) << 56
            | ((long) memory[index + 1] & 0xff) << 48
            | ((long) memory[index + 2] & 0xff) << 40
            | ((long) memory[index + 3] & 0xff) << 32
            | ((long) memory[index + 4] & 0xff) << 24
            | ((long) memory[index + 5] & 0xff) << 16
            | ((long) memory[index + 6] & 0xff) << 8
            | (long) memory[index + 7] & 0xff;
    }

    /**
     * Convert a long number to a bytes array.
     *
     * @param value the long number
     * @return the bytes array
     */
    public static byte[] toBytes(long value) {
        byte[] memory = new byte[8];
        toBytes(value, memory, 0);
        return memory;
    }

    public static void toBytes(long value, byte[] memory, int index) {
        memory[index] = (byte) (value >>> 56);
        memory[index + 1] = (byte) (value >>> 48);
        memory[index + 2] = (byte) (value >>> 40);
        memory[index + 3] = (byte) (value >>> 32);
        memory[index + 4] = (byte) (value >>> 24);
        memory[index + 5] = (byte) (value >>> 16);
        memory[index + 6] = (byte) (value >>> 8);
        memory[index + 7] = (byte) value;
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stream/common/src/main/java/org/apache/bookkeeper/common/util/Bytes.java [33:64]:
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    public static long toLong(byte[] memory, int index) {
        return ((long) memory[index] & 0xff) << 56
            | ((long) memory[index + 1] & 0xff) << 48
            | ((long) memory[index + 2] & 0xff) << 40
            | ((long) memory[index + 3] & 0xff) << 32
            | ((long) memory[index + 4] & 0xff) << 24
            | ((long) memory[index + 5] & 0xff) << 16
            | ((long) memory[index + 6] & 0xff) << 8
            | (long) memory[index + 7] & 0xff;
    }

    /**
     * Convert a long number to a bytes array.
     *
     * @param value the long number
     * @return the bytes array
     */
    public static byte[] toBytes(long value) {
        byte[] memory = new byte[8];
        toBytes(value, memory, 0);
        return memory;
    }

    public static void toBytes(long value, byte[] memory, int index) {
        memory[index] = (byte) (value >>> 56);
        memory[index + 1] = (byte) (value >>> 48);
        memory[index + 2] = (byte) (value >>> 40);
        memory[index + 3] = (byte) (value >>> 32);
        memory[index + 4] = (byte) (value >>> 24);
        memory[index + 5] = (byte) (value >>> 16);
        memory[index + 6] = (byte) (value >>> 8);
        memory[index + 7] = (byte) value;
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