Counter counter3 = registry.newCounter("testc2", "c");
Gauge<String> gauge1 = registry.newGauge("testg", "a", "1");
Gauge<String> gauge2 = registry.newGauge("testg", "b", "2");
Gauge<String> gauge3 = registry.newGauge("testg", "c", "3");
Gauge<String> gauge4 = registry.newGauge("testg2", "d", "4");