Простота vs прозрачность

dto.java

class UselessDTO
{
    public byte val1;
    public int val2, val3;
}

try_1.java

public UselessDTO readFromByteArray(@NotNull byte[] array)
{
    if (array.length < 9) throw new IllegalArgumentException("Need 9 bytes to read");
    UselessDTO dto = new UselessDTO();
    dto.val1 = array[0];
    dto.val2 = (array[1] << 24) | (array[2] << 16) | (array[3] << 8) | array[4];
    dto.val3 = (array[5] << 24) | (array[6] << 16) | (array[7] << 8) | array[8];
    return dto;
}

try_2.java

public UselessDTO readFromByteDataSource(@NotNull ByteBufferDataSource source)
{
    UselessDTO dto = new UselessDTO();
    dto.val1 = source.readByte();
    dto.val2 = source.readInt();
    dto.val3 = source.readInt();
    return dto;
}

try_3.java

public UselessDTO readFromAbstractSource(@NotNull DataSource source)
{
    UselessDTO dto = new UselessDTO();
    dto.val1 = source.readByte();
    dto.val2 = source.readInt();
    dto.val3 = source.readInt();
    return dto;
}