//version 8: import static java.util.Objects.*; public class NonNullWithJdk { @lombok.NonNull private String test; public void testMethod(@lombok.NonNull String arg) { java.util.Objects.requireNonNull(arg, "arg is marked non-null but is null"); System.out.println(arg); } public void testMethodWithCheck1(@lombok.NonNull String arg) { requireNonNull(arg); } public void testMethodWithCheckAssign(@lombok.NonNull String arg) { test = requireNonNull(arg); } public void testMethodWithCheck2(@lombok.NonNull String arg) { java.util.Objects.requireNonNull(arg); } public void testMethodWithFakeCheck1(@lombok.NonNull String arg) { java.util.Objects.requireNonNull(arg, "arg is marked non-null but is null"); requireNonNull(""); } public void testMethodWithFakeCheck2(@lombok.NonNull String arg) { java.util.Objects.requireNonNull(arg, "arg is marked non-null but is null"); java.util.Objects.requireNonNull(test); } public void testMethodWithFakeCheckAssign(@lombok.NonNull String arg) { java.util.Objects.requireNonNull(arg, "arg is marked non-null but is null"); test = requireNonNull(test); } @java.lang.SuppressWarnings("all") public void setTest(@lombok.NonNull final String test) { java.util.Objects.requireNonNull(test, "test is marked non-null but is null"); this.test = test; } }