[OmniFaces utilities 2.0] Create an unmodifiable set based on the given values

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[OmniFaces utilities] The unmodifiableSet() method creates an unmodifiable set based on the given values. If one of the values is an instance of an array or a collection, then each of its values will also be merged into the set. Nested arrays or collections will result in a ClassCastException.

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Method:

Usage:

import org.omnifaces.util.Utils;

...

String a = "1";

Integer b = 2;

Byte[] c = new Byte[]{3, 4, 5};

List<String> d = new ArrayList<>();

             d.add("6");

             d.add("7");

// the unmodifiable Set will contain: 1,2,3,4,5,6,7

Set<Object> all = Utils.unmodifiableSet(a, b, c, d);

API GH