return parent.retainAll(c);
        }

        public void clear() {
            parent.clear();
        }

        public boolean equals(final Object o) {
            return parent.equals(o);
        }

        public int hashCode() {
            return parent.hashCode();
        }

        public E get(final int index) {
            return parent.get(index);

            switch ( tagged.getTagNo() ) {
            case 0:// Kerberos version
                ASN1Integer tktvno = ASN1Util.as(ASN1Integer.class, tagged);
                if ( !tktvno.getValue().equals(new BigInteger(KerberosConstants.KERBEROS_VERSION)) ) {
                    throw new PACDecodingException("Invalid kerberos version " + tktvno);
                }
                break;
            case 1:// Realm

    }

    private void validatePasswordForm(final PasswordForm form, final VaErrorHook validationErrorLambda) {
        validate(form, messages -> {}, validationErrorLambda);

        if (!form.password.equals(form.confirmPassword)) {
            throwValidationError(messages -> {
                messages.addErrorsInvalidConfirmPassword(GLOBAL);
            }, validationErrorLambda);
        }

package com.google.common.util.concurrent;

import com.google.common.annotations.GwtCompatible;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A callback for accepting the results of a {@link java.util.concurrent.Future} computation
 * asynchronously.
 *
 * <p>To attach to a {@link ListenableFuture} use {@link Futures#addCallback}.
 *

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.DoNotCall;
import java.util.ListIterator;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A list iterator that does not support {@link #remove}, {@link #add}, or {@link #set}.
 *
 * @since 7.0
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

 * with a call to {@link Multimaps#synchronizedSetMultimap}.
 *
 * <p><b>Warning:</b> Do not modify either a key <i>or a value</i> of a {@code LinkedHashMultimap}
 * in a way that affects its {@link Object#equals} behavior. Undefined behavior and bugs will
 * result.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#multimap">{@code Multimap}</a>.
 *

import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import java.util.Collection;
import java.util.Map.Entry;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.junit.Ignore;

/**
 * Tester for the {@code size} methods of {@code Multimap} and its views.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import java.util.Collection;
import java.util.Iterator;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An implementation of {@code Iterable} which throws an exception on all invocations of the {@link
 * #iterator()} method after the first, and whose iterator is always unmodifiable.
 *

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.BiMap;
import com.google.common.collect.testing.TestContainerGenerator;
import java.util.Map.Entry;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Creates bimaps, containing sample entries, to be tested.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;

import com.google.common.annotations.GwtCompatible;
import java.util.Map;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Test cases for a {@link Table} implementation supporting reads and writes.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible