}
    }

    // Test configuration class extending FessConfig.SimpleImpl
    private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;
    }

    }

    FieldSettersHolder.MAP_FIELD_SETTER.set(this, tmpMap);
    FieldSettersHolder.SIZE_FIELD_SETTER.set(this, tmpSize);
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

  Spliterator<@Nullable V> valuesSpliterator() {
    return CollectSpliterators.<@Nullable V>indexed(size(), Spliterator.ORDERED, this::getValue);
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

     */
    Builder<K, V> makeBuilder(int size) {
      return new Builder<>(size);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**
   * Returns a serializable form of this object. Non-public subclasses should not override this
   * method. Publicly-accessible subclasses must override this method and should return a subclass

  // This class is never actually serialized directly, but we have to make the
  // warning go away (and suppressing would suppress for all nested classes too)
  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

          return this;
        }
      }
      super.addAll(elements);
      return this;
    }
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0xdecaf;

    }

    @Override
    public int hashCode() {
      return value;
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 5;
  }

  public void testMutableValues() {
    IntHolder holderA = new IntHolder(1);
    IntHolder holderB = new IntHolder(2);

     */
    Builder<K, V> makeBuilder(int size) {
      return new Builder<>(size);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**
   * Returns a serializable form of this object. Non-public subclasses should not override this
   * method. Publicly-accessible subclasses must override this method and should return a subclass

        scheduler.scheduleAtFixedRate(this::persistHandles, 30, 30, TimeUnit.SECONDS);
    }
    
    public static class HandleInfo implements Serializable {
        private static final long serialVersionUID = 1L;
        
        private final String path;
        private final HandleGuid createGuid;
        private final byte[] fileId;
        private final HandleType type;
        private final long timeout;

    int size = Serialization.readCount(stream);
    init(16); // resist hostile attempts to allocate gratuitous heap
    Serialization.populateMap(this, stream, size);
  }

  // TODO(cpovirk): Should we have a serialVersionUID here?