import org.opensearch.client.Client;
import org.opensearch.core.common.Strings;

public abstract class Request<T extends Response> {
    public Deferred<T>.Promise execute(final Client client) {
        final String error = getValidationError();
        if (!Strings.isNullOrEmpty(error)) {
            throw new IllegalArgumentException(error);
        }

        final Deferred<T> deferred = new Deferred<>();
        try {

public class IdnDnsResolverTest extends PlainTestCase {

    public void test_toAscii() {
        IdnDnsResolver resolver = new IdnDnsResolver();

        String host = "www.codelibs.org";
        String expected = "www.codelibs.org";
        assertEquals(expected, resolver.toAscii(host));

        host = "テスト.org";
        expected = "xn--zckzah.org";

      } else {
        // Both two-byte characters, but must be different
        charsA[i] = (char) (0x0180 + i);
        charsB[i] = (char) (0x0280 + i);
      }
    }

    String stringA = new String(charsA);
    String stringB = new String(charsB);
    assertThat(stringA).isNotEqualTo(stringB);
    assertThat(HASH_FN.hashUnencodedChars(stringA))
        .isNotEqualTo(HASH_FN.hashUnencodedChars(stringB));

	FQDN      host.Name
	Port      int
	Subset    string
	Direction model.TrafficDirection
}

// Verify returns true if the passed cluster matches the filter fields
func (c *ClusterFilter) Verify(cluster *cluster.Cluster) bool {
	name := cluster.Name
	if c.FQDN == "" && c.Port == 0 && c.Subset == "" && c.Direction == "" {
		return true
	}
	if c.FQDN != "" && !strings.Contains(name, string(c.FQDN)) {
		return false
	}

            log.trace(String.format("Acquire %s (%d)", this, usage));
        }
        return this;
    }


    /**
     * 
     */
    public void markClosed () {
        this.open = false;
    }


    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString () {
        return String.format(

 *
 * @author Kurt Alfred Kluever
 */
public class SynchronizedDequeTest extends TestCase {

  protected Deque<String> create() {
    TestDeque<String> inner = new TestDeque<>();
    Deque<String> outer = Synchronized.deque(inner, inner.mutex);
    outer.add("foo"); // necessary because we try to remove elements later on
    return outer;
  }

    SettableFuture<String> future = SettableFuture.create();
    SettableFuture<String> nested = SettableFuture.create();
    assertTrue(future.setFuture(nested));
    // Later attempts to set the future should return false.
    assertFalse(future.set("x"));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.<String>create()));

     * which the settings were read.
     *
     * @return the hint about the source of the problem or an empty string if unknown, never {@code null}
     */
    @Nonnull
    String getSource();

    /**
     * Gets the one-based index of the line containing the problem. The line number should refer to some text file that
     * is given by {@link #getSource()}.

        return delegate.getMojoDescriptor().getMojoDescriptorV4();
    }

    @Override
    public String getLifecyclePhase() {
        return delegate.getLifecyclePhase();
    }

    @Override
    public String getExecutionId() {
        return delegate.getExecutionId();
    }

    @Override
    public String getGoal() {
        return delegate.getGoal();
    }

    @Override

        }
    }

    private
    fun StringWriter.assertContains(text: String) {
        Assertions.assertTrue(toString().contains(text)) {
            "Did not find expected error message in $this"
        }
    }

    protected
    data class Change(val type: String, val member: String) {
        override fun toString(): String = "Type: '$type', Member: '$member'"
    }