src/java.base/share/classes/java/util/stream/Collectors.java

*** 25,35 ****
  package java.util.stream;
  
  import java.util.AbstractMap;
  import java.util.AbstractSet;
  import java.util.ArrayList;
- import java.util.Arrays;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.DoubleSummaryStatistics;
  import java.util.EnumSet;
--- 25,34 ----
*** 1718,1733 ****
              this.forFalse = forFalse;
          }
  
          @Override
          public Set<Map.Entry<Boolean, T>> entrySet() {
!             return new AbstractSet<Map.Entry<Boolean, T>>() {
                  @Override
                  public Iterator<Map.Entry<Boolean, T>> iterator() {
                      Map.Entry<Boolean, T> falseEntry = new SimpleImmutableEntry<>(false, forFalse);
                      Map.Entry<Boolean, T> trueEntry = new SimpleImmutableEntry<>(true, forTrue);
!                     return Arrays.asList(falseEntry, trueEntry).iterator();
                  }
  
                  @Override
                  public int size() {
                      return 2;
--- 1717,1732 ----
              this.forFalse = forFalse;
          }
  
          @Override
          public Set<Map.Entry<Boolean, T>> entrySet() {
!             return new AbstractSet<>() {
                  @Override
                  public Iterator<Map.Entry<Boolean, T>> iterator() {
                      Map.Entry<Boolean, T> falseEntry = new SimpleImmutableEntry<>(false, forFalse);
                      Map.Entry<Boolean, T> trueEntry = new SimpleImmutableEntry<>(true, forTrue);
!                     return List.of(falseEntry, trueEntry).iterator();
                  }
  
                  @Override
                  public int size() {
                      return 2;