### Question:
CachedGaugeMethodBean { public void setGauge(long gauge) { this.gauge = gauge; }  @CachedGauge(name = "cachedGaugeMethod", timeout = 500L, timeoutUnit = TimeUnit.MILLISECONDS) long getGauge(); void setGauge(long gauge);  }### Answer:
@Test @InSequence(2) public void callGaugeAfterSetterCall() throws InterruptedException { assertThat("Gauge is not registered correctly", registry.getGauges(), hasKey(GAUGE_NAME)); @SuppressWarnings("unchecked") Gauge<Long> gauge = registry.getGauges().get(GAUGE_NAME); assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(0L))); long value = 1L + Math.round(Math.random() * (Long.MAX_VALUE - 1L)); bean.setGauge(value); assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(0L))); Thread.sleep(2 * 500L); assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(value))); }