public OkHttpClientBuilder setResponseTimeoutMs(long l) {
    if (l < 0) {
      throw new IllegalArgumentException("Response timeout must be positive. Got " + l);
    }
    this.responseTimeoutMs = l;
    return this;
  }
@Test
  public void build_throws_IAE_if_response_timeout_is_negative() {
    assertThatThrownBy(() -> underTest.setResponseTimeoutMs(-10))
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Response timeout must be positive. Got -10");
  }