I'm quite unsure about the use of unsigned types in Java since they are not really supported. For example I want to represent the following C variable definition in Java:

//C definition UCHAR ucData[] = {0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x00, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x00};

//Java definition byte [] key = {(byte) 0xB9, (byte) 0xA5, (byte) 0x21, (byte) 0xFB, (byte) 0xBD, (byte) 0x72, (byte) 0xC3, (byte) 0x45};

Though, that definition won't work like I would like to. I'm afraid that this is due to the signed and not unsigned definition of the type byte. What would be the best way to define unsigned types in Java, so that one can use the full range (0-255)?