// Subsequent get should still work
        assertEquals(4, impl.getBuffer().length);
    }

    // Capacity behavior: when full, additional releases are dropped; only cached buffers are returned
    @Test
    @DisplayName("Cache capacity respected: extra releases dropped; retrieval order by first free slot")
    void cacheCapacityAndRetrievalOrder() {
        BufferCacheImpl impl = new BufferCacheImpl(2, 3);

=====================

## Version 1.6.0

_2014-05-23_

 * Offer bridges to make it easier to migrate from OkHttp 1.x to OkHttp 2.0.
   This adds `OkUrlFactory`, `Cache`, and `@Deprecated` annotations for APIs
   dropped in 2.0.

## Version 1.5.4

_2014-04-14_

 * Drop ALPN support in Android. There's a concurrency bug in all
   currently-shipping versions.

        if (usage == 0) {
            synchronized (this) {
                log.debug("Usage dropped to zero, release session");
                if (this.sessionAcquired.compareAndSet(true, false)) {
                    this.session.release();
                }
            }
        } else if (usage < 0) {
            log.error("Usage count dropped below zero " + this);
            dumpResource();

                    }
                }
            }
        } else if (usage < 0) {
            log.error("Usage count dropped below zero " + this);
            throw new RuntimeCIFSException("Usage count dropped below zero");
        }
    }

    /**
     * Close the tree connection (implements AutoCloseable)
     *

   *
   * @throws IllegalStateException if the response is closed.
   * @throws IOException if the trailers cannot be loaded, such as if the network connection is
   *     dropped.
   */
  @Throws(IOException::class)
  fun trailers(): Headers = trailersSource.get()

  /**
   * Returns the trailers after the HTTP response, if they are available to read immediately. Unlike

   * requests on the same socket, and server-push. HTTP/1.1 semantics are layered on SPDY/3.
   *
   * Current versions of OkHttp do not support this protocol.
   */
  @Deprecated("OkHttp has dropped support for SPDY. Prefer {@link #HTTP_2}.")
  SPDY_3("spdy/3.1"),

  /**
   * The IETF's binary-framed protocol that includes header compression, multiplexing multiple

    .build();
```

                            session.release();
                        }
                    }
                } catch (Exception e) {
                    if (!e.getMessage().contains("Usage count dropped below zero")) {
                        exceptions.add(e);
                    }
                } finally {
                    endLatch.countDown();
                }
            });
        }

    try {
      val provider = Proxy.getInvocationHandler(getMethod.invoke(null, sslSocket)) as AlpnProvider
      if (!provider.unsupported && provider.selected == null) {
        log("ALPN callback dropped: HTTP/2 is disabled. " + "Is alpn-boot on the boot class path?")
        return null
      }
      return if (provider.unsupported) null else provider.selected
    } catch (e: InvocationTargetException) {

        final long us = this.usageCount.decrementAndGet();
        if (us == 0) {
            this.treeConnection.release();
        } else if (us < 0) {
            throw new RuntimeCIFSException("Usage count dropped below zero");
        }
    }

    @Override
    protected void finalize() throws Throwable {
        try {
            // Add null check to prevent NPE if object was not fully constructed