Package java.util
Interface Map.Entry
Description:
Compares the specified object with this entry for equality.
Returns true if the given object is also a map entry and the two entries represent the same mapping.
More formally, two entries e1 and e2 represent the same mapping if
(e1.getKey()==null ?
e2.getKey()==null : e1.getKey().equals(e2.getKey())) &&
(e1.getValue()==null ?
e2.getValue()==null : e1.getValue().equals(e2.getValue()))
This ensures that the equals method works properly across different implementations of the Map.Entry interface.