}

  /** For testing: force this web socket to release its threads. */
  @Throws(InterruptedException::class)
  fun tearDown() {
    taskQueue.shutdown()
    taskQueue.idleLatch().await(10, TimeUnit.SECONDS)
  }

  @Synchronized fun sentPingCount(): Int = sentPingCount

  @Synchronized fun receivedPingCount(): Int = receivedPingCount

  @Synchronized fun receivedPongCount(): Int = receivedPongCount

      }
    ```
=== ":material-language-java: Java"
    ```java
      private final OkHttpClient client;

      public CacheResponse(File cacheDirectory) throws Exception {
        int cacheSize = 10 * 1024 * 1024; // 10 MiB
        Cache cache = new Cache(cacheDirectory, cacheSize);

        client = new OkHttpClient.Builder()
            .cache(cache)
            .build();
      }

      - name: Run Checks
        run: ./gradlew test -Dokhttp.platform=loom -Dtest.java.version=21 -PcontainerTests=true


  testandroidregression:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    if: contains(github.event.pull_request.labels.*.name, 'android-regression')

    strategy:
      fail-fast: false
      matrix:
        api-level:
          - 29
          - 34

    steps:

          "1a45263114cc65bf67decacc3365e54191d737be411a969de68a979da7ceac4e9a3dbd01a06ad94f22008b44" +
          "d569627b2eebccbae7927d69673dfcb87cde4187d069eaba0a187a1a9543b3797128766da1fb574aec4dc80e" +
          "10"
      ).decodeHex()

    assertThat(okHttpCertificate.signatureValue.byteString)
      .isEqualTo(javaCertificate.signature.toByteString())

    assertThat(okHttpCertificate).isEqualTo(
      Certificate(