import java.util.Arrays; import java.util.Collections; import java.util.HashSet; import java.util.Set; // "Extract Set from comparison chain" "true" public class Test { private static final Set S = Collections.unmodifiableSet(new HashSet(Arrays.asList(new String[]{"foo", "bar", "baz"}))); void testOr(String s) { if(S.contains(s)) { System.out.println("foobarbaz"); } } }