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<String> NAMES = Collections.unmodifiableSet(new HashSet<>(Arrays.asList("foo", "bar", "baz"))); void testOr(String name) { if(name == null || NAMES.contains(name)) { System.out.println("foobarbaz"); } } }