### Question:
TokenBlobUtils { public byte[] fromUTF8(String contents) throws UnsupportedEncodingException { Reject.ifNull(contents); return contents.getBytes(ENCODING); }  String getBlobAsString(Token token); void setBlobFromString(Token token, String blob); String toUTF8(byte[] data); byte[] fromUTF8(String contents); static final String ENCODING; }### Answer:
@Test (expectedExceptions = NullPointerException.class) public void shouldNotAllNullContentsFromUTF8() throws UnsupportedEncodingException { utils.fromUTF8(null); }