| Changed Methods | 
  | booleanequals(Object) | Change in signature from Objecttojava.lang.Object.
 |  | 
  | booleanstandardContains(Object) | Change in signature from Objecttojava.lang.Object.
 | A sensible definition of .contains in terms of .count. | 
  | intstandardCount(Object) | Change in signature from Objecttojava.lang.Object.
 | A sensible, albeit inefficient, definition of .count in terms of .entrySet. | 
  | booleanstandardEquals(Object) | Change in signature from Objecttojava.lang.Object.
 | A sensible, albeit inefficient, definition of .equals in terms of {@code
 entrySet().size()} and .count. |