_2019-04-10_

 *  Fix: Don't crash when an interceptor retries when there are no more routes. This was an
    edge-case regression introduced with the events cleanup in 3.14.0.

 *  Fix: Provide actionable advice when the exchange is non-null. Prior to 3.14, OkHttp would
    silently leak connections when an interceptor retries without closing the response body. With
    3.14 we detect this problem but the exception was not helpful.

    assertThat(cache.size()).isEqualTo(10)

    // Cause the size to grow to 12 should evict 'A'.
    set("c", "c", "c")
    cache.flush()
    assertThat(cache.size()).isEqualTo(8)
    assertAbsent("a")
    assertValue("b", "bb", "bbbb")
    assertValue("c", "c", "c")

    // Causing the size to grow to 10 should evict nothing.
    set("d", "d", "d")
    cache.flush()
    assertThat(cache.size()).isEqualTo(10)

 * if you are writing a application that needs to aggressively release unused resources you may do
 * so.
 *
 * Shutdown the dispatcher's executor service with [shutdown()][ExecutorService.shutdown]. This will
 * also cause future calls to the client to be rejected.
 *
 * ```java
 * client.dispatcher().executorService().shutdown();
 * ```
 *