- [Changelog since v1.16.0-beta.2](#changelog-since-v1160-beta2)
    - [Other notable changes](#other-notable-changes-7)
- [v1.16.0-beta.2](#v1160-beta2)
  - [Downloads for v1.16.0-beta.2](#downloads-for-v1160-beta2)
    - [Client Binaries](#client-binaries-19)
    - [Server Binaries](#server-binaries-19)
    - [Node Binaries](#node-binaries-19)
  - [Changelog since v1.16.0-beta.1](#changelog-since-v1160-beta1)

## IMPORTANT WARNINGS

1. APIs marked with the `@Beta` annotation at the class or method level
are subject to change. They can be modified in any way, or even
removed, at any time. If your code is a library itself (i.e. it is
used on the CLASSPATH of users outside your own control), you should
not use beta APIs, unless you [repackage] them. **If your
code is a library, we strongly recommend using the [Guava Beta Checker] to

2.  APIs without `@Beta` will remain binary-compatible for the indefinite
    future. (Previously, we sometimes removed such APIs after a deprecation
    period. The last release to remove non-`@Beta` APIs was Guava 21.0.) Even
    `@Deprecated` APIs will remain (again, unless they are `@Beta`). We have no
    plans to start removing things again, but officially, we're leaving our

  - [Dependencies](#dependencies-6)
    - [Added](#added-6)
    - [Changed](#changed-6)
    - [Removed](#removed-6)
- [v1.33.0-beta.0](#v1330-beta0)
  - [Downloads for v1.33.0-beta.0](#downloads-for-v1330-beta0)
    - [Source Code](#source-code-7)
    - [Client Binaries](#client-binaries-7)
    - [Server Binaries](#server-binaries-7)
    - [Node Binaries](#node-binaries-7)

  - [Dependencies](#dependencies-3)
    - [Added](#added-3)
    - [Changed](#changed-3)
    - [Removed](#removed-3)
- [v1.34.0-beta.0](#v1340-beta0)
  - [Downloads for v1.34.0-beta.0](#downloads-for-v1340-beta0)
    - [Source Code](#source-code-4)
    - [Client Binaries](#client-binaries-4)
    - [Server Binaries](#server-binaries-4)
    - [Node Binaries](#node-binaries-4)

   */
  @GwtIncompatible
  @J2ktIncompatible
  @CanIgnoreReturnValue
  @IgnoreJRERequirement // TODO: b/288085449 - Remove this once we use library-desugaring scents.
  @Beta // TODO: b/288085449 - Remove @Beta after we're sure that Java 8 APIs are safe for Android
  public FakeTicker advance(Duration duration) {
    return advance(duration.toNanos());
  }

  /**

  - [Dependencies](#dependencies-11)
    - [Added](#added-11)
    - [Changed](#changed-11)
    - [Removed](#removed-11)
- [v1.32.0-beta.0](#v1320-beta0)
  - [Downloads for v1.32.0-beta.0](#downloads-for-v1320-beta0)
    - [Source Code](#source-code-12)
    - [Client Binaries](#client-binaries-12)
    - [Server Binaries](#server-binaries-12)
    - [Node Binaries](#node-binaries-12)
    - [Container Images](#container-images-12)

  - [Dependencies](#dependencies-14)
    - [Added](#added-14)
    - [Changed](#changed-14)
    - [Removed](#removed-14)
- [v1.31.0-beta.0](#v1310-beta0)
  - [Downloads for v1.31.0-beta.0](#downloads-for-v1310-beta0)
    - [Source Code](#source-code-15)
    - [Client Binaries](#client-binaries-15)
    - [Server Binaries](#server-binaries-15)
    - [Node Binaries](#node-binaries-15)

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.hash;

import com.google.common.annotations.Beta;
import com.google.errorprone.annotations.DoNotMock;
import java.io.Serializable;
import org.jspecify.annotations.Nullable;

/**

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.Beta;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * An {@link OutputStream} that maintains a hash of the data written to it.
 *
 * @author Zoe Piepmeier
 * @since 16.0
 */
@Beta
public final class HashingOutputStream extends FilterOutputStream {
  private final Hasher hasher;