assertFalse(Strings.validSurrogatePairAt("x\uDCAB", 0));
    assertFalse(Strings.validSurrogatePairAt("\uD8ABx", 0));
  }

  @SuppressWarnings("LenientFormatStringValidation") // Intentional for testing.
  public void testLenientFormat() {
    assertThat(Strings.lenientFormat("%s")).isEqualTo("%s");
    assertThat(Strings.lenientFormat("%s", 5)).isEqualTo("5");

          }
        } else if (platformSystemProperty == JDK8_PROPERTY) {
          if (isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot enabled unintentionally")
          }
        } else if (platformSystemProperty == OPENJSSE_PROPERTY && Security.getProviders()[0].name != "OpenJSSE") {
          if (!OpenJSSEPlatform.isSupported) {

    assertEquals(Range.closed(4, 12), range.span(Range.closed(10, 12)));
    assertEquals(Range.atLeast(4), range.span(Range.atLeast(10)));
  }

  @SuppressWarnings({"InlineMeInliner", "deprecation"}) // intentional test of depecated method
  public void testPredicateMethods() {
    Range<Integer> predicate = Range.closed(2, 3);

    assertFalse(predicate.apply(1));
    assertTrue(predicate.apply(2));

     * handleException() at all.
     */
    if (throwable instanceof Error) {
      /*
       * TODO(cpovirk): Do we really want to log this if we called setException(throwable) and it
       * returned true? This was intentional (CL 46470009), but it seems odd compared to how we
       * normally handle Error.
       *
       * Similarly, do we really want to log the same Error more than once?
       */
      log(throwable);
    }

         * TypeVariable implementation at all.
         *
         * NOTE: b/147144588 - Custom TypeVariables created by Guava do not preserve
         * annotations. This is intentional. The semantics of annotation handling during
         * type resolution are unclear and have changed across Java versions. Until there's
         * a clear specification for what annotations should mean on resolved TypeVariables

The report will explain the errors in detail.
Perhaps, you forgot to add an `@Incubating` annotation or `@since` in the javadoc.

2. Accept the changes.\
If you are sure that the changes are intentional, follow the steps described in the report.
This includes adding the description of the changes to the `accepted-public-api-changes.json` file, and providing a reason for each change.

import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Preconditions}.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 */
@NullMarked
@SuppressWarnings("LenientFormatStringValidation") // Intentional for testing
@GwtCompatible
public class PreconditionsTest extends TestCase {
  public void testCheckArgument_simple_success() {
    checkArgument(true);
  }

  public void testCheckArgument_simple_failure() {

import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Preconditions}.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 */
@NullMarked
@SuppressWarnings("LenientFormatStringValidation") // Intentional for testing
@GwtCompatible
public class PreconditionsTest extends TestCase {
  public void testCheckArgument_simple_success() {
    checkArgument(true);
  }

  public void testCheckArgument_simple_failure() {

import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Ints}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
@SuppressWarnings("cast") // redundant casts are intentional and harmless
public class IntsTest extends TestCase {
  private static final int[] EMPTY = {};
  private static final int[] ARRAY1 = {(int) 1};
  private static final int[] ARRAY234 = {(int) 2, (int) 3, (int) 4};

              <!-- TODO(cpovirk): Enable NullArgumentForNonNullParameter for
                   prod code. It's disabled automatically for "test code"
                   (which is good: our tests have intentional violations), but
                   Error Prone doesn't know it's building test code unless we
                   pass -XepCompilingTestOnlyCode, and that argument needs to