System.out.printf("Buffer Cache Performance: %d allocs, %d releases in %.2f ms%n", allocations.get(), releases.get(),
                overallTimeMs);
        System.out.printf("  Avg allocation time: %.2f ns%n", avgAllocTimeNs);
        System.out.printf("  Avg release time: %.2f ns%n", avgReleaseTimeNs);

        // Verify O(1) performance - should be reasonably fast (allowing for JVM overhead)

        executor.schedule({
          System.out.printf("%.2f Canceling call.%n", (System.nanoTime() - startNanos) / 1e9f)
          call.cancel()
          System.out.printf("%.2f Canceled call.%n", (System.nanoTime() - startNanos) / 1e9f)
        }, 1, TimeUnit.SECONDS)

        System.out.printf("%.2f Executing call.%n", (System.nanoTime() - startNanos) / 1e9f)
        try {

        .query("i:\u0001@/\\?#%j")
        .fragment("k:\u0001@/\\?#%l")
        .build()
    assertThat(url.toString())
      .isEqualTo(
        "http://a%3A%01%40%2F%5C%3F%23%25b:c%3A%01%40%2F%5C%3F%23%25d@ef:8080/" +
          "g:%01@%2F%5C%3F%23%25h?i:%01@/\\?%23%25j#k:%01@/\\?#%25l",
      )
    assertThat(url.scheme).isEqualTo("http")
    assertThat(url.username).isEqualTo("a:\u0001@/\\?#%b")

            case '@':
                buf.append("%40");
                break;
            case ':':
                buf.append("%3a");
                break;
            case '/':
                buf.append("%2f");
                break;
            default:
                buf.append(c);
                break;
            }
        }
        return buf.toString();
    }

    /**

                            + "healthChecks=%d, failed=%d, removed=%d, endpoints=%d, "
                            + "healthCheckEnabled=%s, proactiveEnabled=%s, utilization=%.2f%%, successRate=%.2f%%]",
                    activeConnections, nonPooledConnections, trackedConnections, maxPoolSize, totalHealthChecks, failedHealthChecks,

        RequestData data = RequestDataBuilder.newRequestData().post().url("https://api.example.com/users").weight(1.2f).build();

        assertEquals(Method.POST, data.getMethod());
        assertEquals("https://api.example.com/users", data.getUrl());
        assertEquals(1.2f, data.getWeight(), 0.001f);
    }

    public void test_orderIndependence() {
        // Test that order of method calls doesn't matter

            this.successRate = successRate;
        }

        @Override
        public String toString() {
            return String.format("CircuitBreaker[%s] State=%s, Calls=%d, Success=%.2f%%, Rejected=%d", name, state, totalCalls,
                    successRate * 100, rejectedCalls);
        }
    }

    /**
     * Exception thrown when circuit breaker is open
     */

      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);
      events.add(caption + String.format(Locale.ROOT, "%3.2f", micros / 1000000.0));
    }

    @Override
    protected void sleepMicrosUninterruptibly(long micros) {
      sleepMicros("R", micros);
    }

    String readEventsAndClear() {
      try {

      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);
      events.add(caption + String.format(Locale.ROOT, "%3.2f", micros / 1000000.0));
    }

    @Override
    protected void sleepMicrosUninterruptibly(long micros) {
      sleepMicros("R", micros);
    }

    String readEventsAndClear() {
      try {

            return String.format(
                    "CircuitBreakerMetrics[name=%s, state=%s, requests=%d, successes=%d, "
                            + "failures=%d, rejections=%d, successRate=%.2f%%, availability=%.2f%%]",
                    name, currentState, totalRequests, totalSuccesses, totalFailures, totalRejections, successRate, availability);
        }
    }

    /**