### Question:
Numeric { public static BigDecimal fromFixed8ToDecimal(byte[] value) { if (value.length > FIXED8_LENGTH) { throw new IllegalArgumentException("Fixed8 byte array cannot be larger than 8 bytes."); } return fromFixed8ToDecimal(BigIntegers.fromLittleEndianByteArray(value)); } private  Numeric(); static String encodeQuantity(BigInteger value); static BigInteger decodeQuantity(String value); static String cleanHexPrefix(String input); static String prependHexPrefix(String input); static boolean containsHexPrefix(String input); static boolean isValidHexString(String string); static BigDecimal fromFixed8ToDecimal(byte[] value); static BigDecimal fromFixed8ToDecimal(String hexString); static BigDecimal fromFixed8ToDecimal(BigInteger value); static byte[] fromDecimalToFixed8ByteArray(BigDecimal value); static byte[] fromDecimalToFixed8ByteArray(BigInteger value); static String fromDecimalToFixed8HexString(BigDecimal value); static String fromDecimalToFixed8HexString(BigInteger value); static BigInteger toBigInt(byte[] value, int offset, int length); static BigInteger toBigInt(byte[] value); static BigInteger toBigInt(String hexValue); static BigInteger toBigIntNoPrefix(String hexValue); static String toHexStringWithPrefix(BigInteger value); static String toHexStringNoPrefix(BigInteger value); static String toHexStringNoPrefix(byte input); static String toHexStringNoPrefix(byte[] input); static String toHexStringWithPrefixZeroPadded(BigInteger value, int size); static String toHexStringWithPrefixSafe(BigInteger value); static String toHexStringNoPrefixZeroPadded(BigInteger value); static String toHexStringNoPrefixZeroPadded(BigInteger value, int size); static byte[] toBytesPadded(BigInteger value, int length); static byte[] hexStringToByteArray(String input); static String toHexString(byte[] input, int offset, int length, boolean withPrefix); static String toHexString(byte input); static String toHexString(byte[] input); static String hexToString(String input); static BigInteger hexToInteger(String input); static String reverseHexString(String input); static byte asByte(int m, int n); static boolean isIntegerValue(BigDecimal value);  }### Answer:
@Test public void testFromFixed8ToBigDecimal() { byte[] fixed8 = {0x01, (byte) 0xe4, 0x0b, (byte) 0x54, 0x02, 0x00, 0x00, 0x00}; BigDecimal asBigDecimal = Numeric.fromFixed8ToDecimal(fixed8); BigDecimal expected = BigDecimal.valueOf(100.00000001d); Assert.assertEquals(0, expected.compareTo(asBigDecimal)); }