LPS-47986 Define test context for creating LInkedHashMap, using a 'When + Action' pattern.
LPS-47986 Move tests from MapUtilLinkedHashMapTest to its context on MapUtilTest.
LPS-47986 Add more tests exposing that a client code will have to deal with NumberFormatException if invalid input params are sent
LPS-47986 SF: use assertEquals instead of assertTrue when comparing map sizes
LPS-47986 Add Peter as author