*       operations in a thread always happen-before subsequent read operations in the same
     *       thread
     *   <li>If this field's value == null because of unsafe publication, we know that it isn't the
     *       object associated with our thread, because if it was the publication wouldn't have been
     *       unsafe and we'd have seen our thread as the value. This state is also why a new

     * again and get a more complete representation of the same object; but properties cannot be
     * removed, so this only allows limited reuse of the helper instance. The helper allows
     * duplication of properties (multiple name/value pairs with the same name can be added).
     */
    @Override
    public String toString() {
      // create a copy to keep it consistent in case value changes

     * again and get a more complete representation of the same object; but properties cannot be
     * removed, so this only allows limited reuse of the helper instance. The helper allows
     * duplication of properties (multiple name/value pairs with the same name can be added).
     */
    @Override
    public String toString() {
      // create a copy to keep it consistent in case value changes

/**
 * Tests for {@link ImmutableBiMap}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class ImmutableBiMapTest extends TestCase {

  // TODO: Reduce duplication of ImmutableMapTest code

  @J2ktIncompatible
  @GwtIncompatible // suite
  @AndroidIncompatible // test-suite builders
  public static Test suite() {
    TestSuite suite = new TestSuite();

    suite.addTest(

  /**
   * As described in the <a href="http://idpf.org/epub">International Digital Publishing Forum</a>
   * EPUB is the distribution and interchange format standard for digital publications and
   * documents. This media type is defined in the <a
   * href="http://www.idpf.org/epub/30/spec/epub30-ocf.html">EPUB Open Container Format</a>
   * specification.
   *
   * @since 15.0
   */

  /**
   * As described in the <a href="http://idpf.org/epub">International Digital Publishing Forum</a>
   * EPUB is the distribution and interchange format standard for digital publications and
   * documents. This media type is defined in the <a
   * href="http://www.idpf.org/epub/30/spec/epub30-ocf.html">EPUB Open Container Format</a>
   * specification.
   *
   * @since 15.0
   */