return Multimaps.filterEntries(unfiltered, PREDICATE);
  }

  @Override
  protected Map<String, Collection<Integer>> makeEmptyMap() {
    Multimap<String, Integer> multimap = createMultimap();
    return multimap.asMap();
  }

  @Override
  protected Map<String, Collection<Integer>> makePopulatedMap() {
    Multimap<String, Integer> multimap = createMultimap();
    populate(multimap);

class PathTranslatingPostProcessor implements InterpolationPostProcessor {

    private final Collection<String> unprefixedPathKeys;
    private final File projectDir;
    private final PathTranslator pathTranslator;
    private final List<String> expressionPrefixes;

    PathTranslatingPostProcessor(
            List<String> expressionPrefixes,
            Collection<String> unprefixedPathKeys,
            File projectDir,

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

        not(not -> not.setId_Term(id), opLambda);
    }

    public void setId_Terms(Collection<String> idList) {
        setId_Terms(idList, null);
    }

    public void setId_Terms(Collection<String> idList, ConditionOptionCall<IdsQueryBuilder> opLambda) {
        IdsQueryBuilder builder = regIdsQ(idList);
        if (opLambda != null) {

  }

  @Override
  public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)
      throws InterruptedException {
    Preconditions.checkNotNull(tasks, "tasks must not be null!");
    return delegate.invokeAll(tasks);
  }

  @Override
  public <T> List<Future<T>> invokeAll(
      Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
      throws InterruptedException {

  }

  @Override
  public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)
      throws InterruptedException {
    Preconditions.checkNotNull(tasks, "tasks must not be null!");
    return delegate.invokeAll(tasks);
  }

  @Override
  public <T> List<Future<T>> invokeAll(
      Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
      throws InterruptedException {

  }

  public void testCopyOf_collectionContainingNull() {
    Collection<@Nullable String> c = MinimalCollection.of("a", null, "b");
    assertThrows(NullPointerException.class, () -> copyOf((Collection<String>) c));
  }

  enum TestEnum {
    A,
    B,
    C,
    D
  }

  public void testCopyOf_collection_enumSet() {
    Collection<TestEnum> c = EnumSet.of(TestEnum.A, TestEnum.B, TestEnum.D);

import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.testing.NullPointerTester;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Objects;
import junit.framework.Test;