[OmniFaces utilities 2.0] Get a new map that contains the reverse of the given map

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[OmniFaces utilities] The reverse() method returns a new map that contains the reverse of the given map. The reverse of a map means that every value X becomes a key X' with as corresponding value Y' the key Y that was originally associated with the value X.

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Method:

Usage:

Map<String,String> abcde = new HashMap<>();

 abcde.put("one","A");

 abcde.put("two","B");

 abcde.put("three","C");

 abcde.put("four","D");

 abcde.put("five","E");

import org.omnifaces.util.Utils;

...

Map<String, String> reversed = Utils.reverse(abcde);

Before reversing:

Key : four Value : D

Key : one Value : A

Key : two Value : B

Key : three Value : C

Key : five Value : E

After (reversed):

Key : A Value : one

Key : B Value : two

Key : C Value : three

Key : D Value : four

Key : E Value : five

API GH