in dbus-java/src/main/java/org/freedesktop/dbus/connections/SASL.java [160:190]
private byte getNibble(char c) {
switch (c) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return (byte) (c - '0');
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
return (byte) (c - 'A' + 10);
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
return (byte) (c - 'a' + 10);
default:
return 0;
}
}