*/
  open fun onEvent(
    eventSource: EventSource,
    id: String?,
    type: String?,
    data: String,
  ) {
  }

  /**
   * Invoked when the HTTP connection has been closed normally.
   *
   * No further calls to this listener will be made.
   */
  open fun onClosed(eventSource: EventSource) {
  }

  /**

  }

  @Override
  public SortedMultiset<E> descendingMultiset() {
    return delegate().descendingMultiset();
  }

  /**
   * A skeleton implementation of a descending multiset view. Normally, {@link
   * #descendingMultiset()} will not reflect any changes you make to the behavior of methods such as
   * {@link #add(Object)} or {@link #pollFirstEntry}. This skeleton implementation correctly

        run: ./mvnw -B -P!standard-with-extra-repos -Dtoolchain.skip verify -U -Dmaven.javadoc.skip=true -Dsurefire.toolchain.version=${{ matrix.java }} -f $ROOT_POM
      - name: 'Print Surefire reports'
        # Note: Normally a step won't run if the job has failed, but this causes it to
        if: ${{ failure() }}
        shell: bash
        run: ./util/print_surefire_reports.sh
      - name: 'Set up Gradle'

        .addEqualityGroup(isNull)
        .addEqualityGroup(Equivalence.identity().equivalentTo("1"))
        .testEquals();
  }

  /*
   * We use large numbers to avoid the integer cache. Normally, we'd accomplish that merely by using
   * `new Integer` (as we do) instead of `Integer.valueOf`. However, under J2KT, `new Integer`
   * gets translated back to `Integer.valueOf` because that is the only thing J2KT can support. And

        .addEqualityGroup(isNull)
        .addEqualityGroup(Equivalence.identity().equivalentTo("1"))
        .testEquals();
  }

  /*
   * We use large numbers to avoid the integer cache. Normally, we'd accomplish that merely by using
   * `new Integer` (as we do) instead of `Integer.valueOf`. However, under J2KT, `new Integer`
   * gets translated back to `Integer.valueOf` because that is the only thing J2KT can support. And

   *
   * Additionally, it seems that nestmates do not help with runtime reflection under *Android*, even
   * when we use a newer -source and -target. That doesn't normally matter for AbstractFutureState,
   * since Android should normally succed in using UnsafeAtomicHelper and thus never even try the
   * problematic AtomicReferenceFieldUpdaterAtomicHelper code path. However, the same problem *does*

   *
   * Additionally, it seems that nestmates do not help with runtime reflection under *Android*, even
   * when we use a newer -source and -target. That doesn't normally matter for AbstractFutureState,
   * since Android should normally succed in using UnsafeAtomicHelper and thus never even try the
   * problematic AtomicReferenceFieldUpdaterAtomicHelper code path. However, the same problem *does*

  }

  @Override
  public SortedMultiset<E> descendingMultiset() {
    return delegate().descendingMultiset();
  }

  /**
   * A skeleton implementation of a descending multiset view. Normally, {@link
   * #descendingMultiset()} will not reflect any changes you make to the behavior of methods such as
   * {@link #add(Object)} or {@link #pollFirstEntry}. This skeleton implementation correctly

 *
 * @param <K> the most general key type this builder will be able to create caches for. This is
 *     normally {@code Object} unless it is constrained by using a method like {@link
 *     #removalListener}. Cache keys may not be null.
 * @param <V> the most general value type this builder will be able to create caches for. This is
 *     normally {@code Object} unless it is constrained by using a method like {@link

    connection.calls.add(CallReference(this, callStackTrace))
  }

  /**
   * Releases resources held with the request or response of [exchange]. This should be called when
   * the request completes normally or when it fails due to an exception, in which case [e] should
   * be non-null.
   *
   * If the exchange was canceled or timed out, this will wrap [e] in an exception that provides