Upgrade to micrometer 1.0.0-SNAPSHOT

Move to the snapshots and rework changed APIs in preparation for
the upcoming rc8 release.

See gh-11575

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/amqp/RabbitMetricsConfiguration.java

@@ -16,7 +16,6 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.amqp;
 
-import java.util.List;
 import java.util.Map;
 
 import com.rabbitmq.client.ConnectionFactory;
@@ -67,7 +66,7 @@ public class RabbitMetricsConfiguration {
 
 	private void bindConnectionFactoryToRegistry(String beanName,
 			AbstractConnectionFactory connectionFactory) {
-		List<Tag> tags = Tags.zip("name", getConnectionFactoryName(beanName));
+		Iterable<Tag> tags = Tags.zip("name", getConnectionFactoryName(beanName));
 		new RabbitMetrics(connectionFactory.getRabbitConnectionFactory(), this.metricName,
 				tags).bindTo(this.registry);
 	}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/ganglia/GangliaExportConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class GangliaExportConfiguration {
 	@ConditionalOnProperty(value = "management.metrics.export.ganglia.enabled", matchIfMissing = true)
 	public MetricsExporter gangliaExporter(GangliaConfig gangliaConfig,
 			HierarchicalNameMapper nameMapper, Clock clock) {
-		return () -> new GangliaMeterRegistry(gangliaConfig, nameMapper, clock);
+		return () -> new GangliaMeterRegistry(gangliaConfig, clock, nameMapper);
 	}
 
 	@Bean

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/graphite/GraphiteExportConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class GraphiteExportConfiguration {
 	@ConditionalOnProperty(value = "management.metrics.export.graphite.enabled", matchIfMissing = true)
 	public MetricsExporter graphiteExporter(GraphiteConfig graphiteConfig,
 			HierarchicalNameMapper nameMapper, Clock clock) {
-		return () -> new GraphiteMeterRegistry(graphiteConfig, nameMapper, clock);
+		return () -> new GraphiteMeterRegistry(graphiteConfig, clock, nameMapper);
 	}
 
 	@Bean

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/jmx/JmxExportConfiguration.java

@@ -50,7 +50,7 @@ public class JmxExportConfiguration {
 	@ConditionalOnProperty(value = "management.metrics.export.jmx.enabled", matchIfMissing = true)
 	public MetricsExporter jmxExporter(JmxConfig config,
 			HierarchicalNameMapper nameMapper, Clock clock) {
-		return () -> new JmxMeterRegistry(config, nameMapper, clock);
+		return () -> new JmxMeterRegistry(config, clock, nameMapper);
 	}
 
 	@Bean

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/jdbc/DataSourcePoolMetricsConfiguration.java

@@ -17,7 +17,6 @@
 package org.springframework.boot.actuate.autoconfigure.metrics.jdbc;
 
 import java.util.Collection;
-import java.util.List;
 import java.util.Map;
 
 import javax.sql.DataSource;
@@ -69,7 +68,7 @@ public class DataSourcePoolMetricsConfiguration {
 	}
 
 	private void bindDataSourceToRegistry(String beanName, DataSource dataSource) {
-		List<Tag> tags = Tags.zip("name", getDataSourceName(beanName));
+		Iterable<Tag> tags = Tags.zip("name", getDataSourceName(beanName));
 		new DataSourcePoolMetrics(dataSource, this.metadataProviders, this.metricName,
 				tags).bindTo(this.registry);
 	}

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurerTests.java

@@ -42,8 +42,8 @@ public class MeterRegistryConfigurerTests {
 						UserConfigurations.of(MeterRegistryConfigurerConfiguration.class))
 				.withPropertyValues("management.metrics.use-global-registry=false")
 				.run((context) -> assertThat(context.getBean(MeterRegistry.class)
-						.find("jvm.memory.used").tags("region", "us-east-1").gauge())
+						.get("jvm.memory.used").tags("region", "us-east-1").gauge())
-								.isPresent());
+								.isNotNull());
 	}
 
 	@Test
@@ -54,8 +54,8 @@ public class MeterRegistryConfigurerTests {
 						UserConfigurations.of(MeterRegistryConfigurerConfiguration.class))
 				.withPropertyValues("management.metrics.use-global-registry=false")
 				.run((context) -> assertThat(context.getBean(MeterRegistry.class)
-						.find("my.thing").tags("region", "us-east-1").gauge())
+						.get("my.thing").tags("region", "us-east-1").gauge())
-								.isPresent());
+								.isNotNull());
 	}
 
 	static class MeterRegistryConfigurerConfiguration {

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MetricsAutoConfigurationIntegrationTests.java

@@ -22,7 +22,6 @@ import java.util.Set;
 
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.MockClock;
-import io.micrometer.core.instrument.Statistic;
 import io.micrometer.core.instrument.binder.MeterBinder;
 import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics;
 import io.micrometer.core.instrument.binder.logging.LogbackMetrics;
@@ -94,15 +93,15 @@ public class MetricsAutoConfigurationIntegrationTests {
 						"{\"message\": \"hello\"}", MediaType.APPLICATION_JSON));
 		assertThat(this.external.getForObject("/api/external", Map.class))
 				.containsKey("message");
-		assertThat(this.registry.find("http.client.requests").value(Statistic.Count, 1.0)
+		assertThat(this.registry.get("http.client.requests").timer().count())
-				.timer()).isPresent();
+				.isEqualTo(1);
 	}
 
 	@Test
 	public void requestMappingIsInstrumented() {
 		this.loopback.getForObject("/api/people", Set.class);
-		assertThat(this.registry.find("http.server.requests").value(Statistic.Count, 1.0)
+		assertThat(this.registry.get("http.server.requests").timer().count())
-				.timer()).isPresent();
+				.isEqualTo(1);
 	}
 
 	@Test

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MetricsAutoConfigurationTests.java

@@ -54,8 +54,8 @@ public class MetricsAutoConfigurationTests {
 				.run((context) -> {
 					context.getBean(DataSource.class).getConnection().getMetaData();
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("data.source.max.connections")
+					registry.get("data.source.max.connections").tags("name", "dataSource")
-							.tags("name", "dataSource").meter()).isPresent();
+							.meter();
 				});
 	}
 
@@ -69,8 +69,8 @@ public class MetricsAutoConfigurationTests {
 				.run((context) -> {
 					context.getBean(DataSource.class).getConnection().getMetaData();
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("custom.name.max.connections")
+					registry.get("custom.name.max.connections").tags("name", "dataSource")
-							.tags("name", "dataSource").meter()).isPresent();
+							.meter();
 				});
 	}
 
@@ -85,7 +85,7 @@ public class MetricsAutoConfigurationTests {
 					context.getBean(DataSource.class).getConnection().getMetaData();
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
 					assertThat(registry.find("data.source.max.connections")
-							.tags("name", "dataSource").meter()).isNotPresent();
+							.tags("name", "dataSource").meter()).isNull();
 				});
 	}
 
@@ -100,10 +100,10 @@ public class MetricsAutoConfigurationTests {
 					context.getBean("secondOne", DataSource.class).getConnection()
 							.getMetaData();
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("data.source.max.connections")
+					registry.get("data.source.max.connections").tags("name", "first")
-							.tags("name", "first").meter()).isPresent();
+							.meter();
-					assertThat(registry.find("data.source.max.connections")
+					registry.get("data.source.max.connections").tags("name", "secondOne")
-							.tags("name", "secondOne").meter()).isPresent();
+							.meter();
 				});
 	}
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/amqp/RabbitMetricsConfigurationTests.java

@@ -46,7 +46,7 @@ public class RabbitMetricsConfigurationTests {
 	public void autoConfiguredConnectionFactoryIsInstrumented() {
 		this.contextRunner.run((context) -> {
 			MeterRegistry registry = context.getBean(MeterRegistry.class);
-			assertThat(registry.find("rabbitmq.connections").meter()).isPresent();
+			registry.get("rabbitmq.connections").meter();
 		});
 	}
 
@@ -56,10 +56,8 @@ public class RabbitMetricsConfigurationTests {
 				.withPropertyValues("management.metrics.rabbitmq.metric-name=custom.name")
 				.run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("custom.name.connections").meter())
+					registry.get("custom.name.connections").meter();
-							.isPresent();
+					assertThat(registry.find("rabbitmq.connections").meter()).isNull();
-					assertThat(registry.find("rabbitmq.connections").meter())
-							.isNotPresent();
 				});
 	}
 
@@ -69,8 +67,7 @@ public class RabbitMetricsConfigurationTests {
 				.withPropertyValues("management.metrics.rabbitmq.instrument=false")
 				.run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("rabbitmq.connections").meter())
+					assertThat(registry.find("rabbitmq.connections").meter()).isNull();
-							.isNotPresent();
 				});
 	}
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/cache/CacheMetricsConfigurationTests.java

@@ -48,10 +48,10 @@ public class CacheMetricsConfigurationTests {
 		this.contextRunner.withPropertyValues("spring.cache.type=caffeine",
 				"spring.cache.cache-names=cache1,cache2").run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("cache.requests").tags("name", "cache1")
+					registry.get("cache.requests").tags("name", "cache1")
-							.tags("cacheManager", "cacheManager").meter()).isPresent();
+							.tags("cacheManager", "cacheManager").meter();
-					assertThat(registry.find("cache.requests").tags("name", "cache2")
+					registry.get("cache.requests").tags("name", "cache2")
-							.tags("cacheManager", "cacheManager").meter()).isPresent();
+							.tags("cacheManager", "cacheManager").meter();
 				});
 	}
 
@@ -62,10 +62,8 @@ public class CacheMetricsConfigurationTests {
 						"spring.cache.type=caffeine", "spring.cache.cache-names=cache1")
 				.run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(
+					registry.get("custom.name.requests").tags("name", "cache1")
-							registry.find("custom.name.requests").tags("name", "cache1")
+							.tags("cacheManager", "cacheManager").meter();
-									.tags("cacheManager", "cacheManager").meter())
-											.isPresent();
 				});
 	}
 
@@ -75,9 +73,9 @@ public class CacheMetricsConfigurationTests {
 				"spring.cache.cache-names=cache1,cache2").run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
 					assertThat(registry.find("cache.requests").tags("name", "cache1")
-							.tags("cacheManager", "cacheManager").meter()).isNotPresent();
+							.tags("cacheManager", "cacheManager").meter()).isNull();
 					assertThat(registry.find("cache.requests").tags("name", "cache2")
-							.tags("cacheManager", "cacheManager").meter()).isNotPresent();
+							.tags("cacheManager", "cacheManager").meter()).isNull();
 				});
 	}
 
@@ -89,7 +87,7 @@ public class CacheMetricsConfigurationTests {
 				.run((context) -> {
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
 					assertThat(registry.find("cache.requests").tags("name", "cache1")
-							.tags("cacheManager", "cacheManager").meter()).isNotPresent();
+							.tags("cacheManager", "cacheManager").meter()).isNull();
 				});
 	}
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/web/client/RestTemplateMetricsConfigurationTests.java

@@ -74,10 +74,10 @@ public class RestTemplateMetricsConfigurationTests {
 	private void validateRestTemplate(RestTemplate restTemplate, MeterRegistry registry) {
 		MockRestServiceServer server = MockRestServiceServer.createServer(restTemplate);
 		server.expect(requestTo("/test")).andRespond(withStatus(HttpStatus.OK));
-		assertThat(registry.find("http.client.requests").meter()).isNotPresent();
+		assertThat(registry.find("http.client.requests").meter()).isNull();
 		assertThat(restTemplate.getForEntity("/test", Void.class).getStatusCode())
 				.isEqualTo(HttpStatus.OK);
-		assertThat(registry.find("http.client.requests").meter()).isPresent();
+		registry.get("http.client.requests").meter();
 	}
 
 	@Configuration

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/cache/CacheMetricsRegistrar.java

@@ -79,8 +79,8 @@ public class CacheMetricsRegistrar {
 	}
 
 	@SuppressWarnings({ "unchecked", "rawtypes" })
-	private MeterBinder getMeterBinder(Cache cache, List<Tag> tags) {
+	private MeterBinder getMeterBinder(Cache cache, Iterable<Tag> tags) {
-		tags.addAll(getAdditionalTags(cache));
+		Iterable<Tag> withAdditionalTags = Tags.concat(tags, getAdditionalTags(cache));
 		for (CacheMeterBinderProvider<?> binderProvider : this.binderProviders) {
 			Class<?> cacheType = ResolvableType
 					.forClass(CacheMeterBinderProvider.class, binderProvider.getClass())
@@ -88,7 +88,7 @@ public class CacheMetricsRegistrar {
 			if (cacheType.isInstance(cache)) {
 				try {
 					MeterBinder meterBinder = ((CacheMeterBinderProvider) binderProvider)
-							.getMeterBinder(cache, this.metricName, tags);
+							.getMeterBinder(cache, this.metricName, withAdditionalTags);
 					if (meterBinder != null) {
 						return meterBinder;
 					}
@@ -120,7 +120,7 @@ public class CacheMetricsRegistrar {
 	 * @param cache the cache
 	 * @return a list of additional tags to associate to that {@code cache}.
 	 */
-	protected List<Tag> getAdditionalTags(Cache cache) {
+	protected Iterable<Tag> getAdditionalTags(Cache cache) {
 		return Tags.zip("name", cache.getName());
 	}
 

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/servlet/WebMvcMetrics.java

@@ -64,7 +64,7 @@ public class WebMvcMetrics {
 
 	private static final Log logger = LogFactory.getLog(WebMvcMetrics.class);
 
-	private final Map<HttpServletRequest, Long> longTaskTimerIds = Collections
+	private final Map<HttpServletRequest, LongTaskTimer.Sample> longTaskTimerSamples = Collections
 			.synchronizedMap(new IdentityHashMap<>());
 
 	private final MeterRegistry registry;
@@ -103,7 +103,7 @@ public class WebMvcMetrics {
 				logWarning(request, handler);
 				return;
 			}
-			this.longTaskTimerIds.put(request,
+			this.longTaskTimerSamples.put(request,
 					longTaskTimer(config, request, handler).start());
 		});
 	}
@@ -138,8 +138,10 @@ public class WebMvcMetrics {
 	private void completeLongTimerTask(HttpServletRequest request, Object handler,
 			TimerConfig config) {
 		if (config.getName() != null) {
-			longTaskTimer(config, request, handler)
+			LongTaskTimer.Sample sample = this.longTaskTimerSamples.remove(request);
-					.stop(this.longTaskTimerIds.remove(request));
+			if (sample != null) {
+				sample.stop();
+			}
 		}
 	}
 

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/amqp/RabbitMetricsTests.java

@@ -36,7 +36,7 @@ public class RabbitMetricsTests {
 		ConnectionFactory connectionFactory = mockConnectionFactory();
 		SimpleMeterRegistry registry = new SimpleMeterRegistry();
 		new RabbitMetrics(connectionFactory, "rabbit", null).bindTo(registry);
-		assertThat(registry.find("rabbit.connections").meter()).isPresent();
+		registry.get("rabbit.connections");
 	}
 
 	@Test
@@ -45,10 +45,9 @@ public class RabbitMetricsTests {
 		SimpleMeterRegistry registry = new SimpleMeterRegistry();
 		new RabbitMetrics(connectionFactory, "test", Tags.zip("env", "prod"))
 				.bindTo(registry);
-		assertThat(registry.find("test.connections").tags("env", "prod").meter())
+		assertThat(registry.get("test.connections").tags("env", "prod").meter())
-				.isPresent();
+				.isNotNull();
-		assertThat(registry.find("test.connections").tags("env", "dev").meter())
+		assertThat(registry.find("test.connections").tags("env", "dev").meter()).isNull();
-				.isNotPresent();
 	}
 
 	private ConnectionFactory mockConnectionFactory() {

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/cache/CacheMetricsRegistrarTests.java

@@ -42,8 +42,8 @@ public class CacheMetricsRegistrarTests {
 				"root", Collections.singleton(new CaffeineCacheMeterBinderProvider()));
 		assertThat(registrar.bindCacheToRegistry(
 				new CaffeineCache("test", Caffeine.newBuilder().build()))).isTrue();
-		assertThat(this.meterRegistry.find("root.requests").tags("name", "test").meter())
+		assertThat(this.meterRegistry.get("root.requests").tags("name", "test").meter())
-				.isPresent();
+				.isNotNull();
 	}
 
 	@Test
@@ -53,7 +53,7 @@ public class CacheMetricsRegistrarTests {
 		assertThat(registrar.bindCacheToRegistry(
 				new CaffeineCache("test", Caffeine.newBuilder().build()))).isFalse();
 		assertThat(this.meterRegistry.find("root.requests").tags("name", "test").meter())
-				.isNotPresent();
+				.isNull();
 	}
 
 }

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/integration/SpringIntegrationMetricsIntegrationTests.java

@@ -21,7 +21,6 @@ import java.util.Map;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.micrometer.core.instrument.MeterRegistry;
-import io.micrometer.core.instrument.Statistic;
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -57,13 +56,10 @@ public class SpringIntegrationMetricsIntegrationTests {
 	@Test
 	public void springIntegrationMetrics() {
 		this.converter.fahrenheitToCelsius(68.0);
-		assertThat(this.registry.find("spring.integration.channel.sends")
+		assertThat(this.registry.get("spring.integration.channel.sends")
-				.tags("channel", "convert.input").value(Statistic.Count, 1).meter())
+				.tags("channel", "convert.input").functionCounter().count()).isEqualTo(1);
-						.isPresent();
+		this.registry.get("spring.integration.handler.duration.min").gauge();
-		assertThat(this.registry.find("spring.integration.handler.duration.min").meter())
+		this.registry.get("spring.integration.sourceNames").meter();
-				.isPresent();
-		assertThat(this.registry.find("spring.integration.sourceNames").meter())
-				.isPresent();
 	}
 
 	@Configuration

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/jdbc/DataSourcePoolMetricsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,8 +32,6 @@ import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 /**
  * Tests for {@link DataSourcePoolMetrics}.
  *
@@ -52,8 +50,8 @@ public class DataSourcePoolMetricsTests {
 						"metrics.use-global-registry=false")
 				.run((context) -> {
 					context.getBean(DataSource.class).getConnection().getMetaData();
-					assertThat(context.getBean(MeterRegistry.class)
+					context.getBean(MeterRegistry.class)
-							.find("data.source.max.connections").meter()).isPresent();
+							.get("data.source.max.connections").meter();
 				});
 	}
 

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizerTests.java

@@ -20,7 +20,6 @@ import java.util.stream.StreamSupport;
 
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.MockClock;
-import io.micrometer.core.instrument.Statistic;
 import io.micrometer.core.instrument.Tag;
 import io.micrometer.core.instrument.simple.SimpleConfig;
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
@@ -71,9 +70,9 @@ public class MetricsRestTemplateCustomizerTests {
 				.meters()).anySatisfy((m) -> assertThat(
 						StreamSupport.stream(m.getId().getTags().spliterator(), false)
 								.map(Tag::getKey)).doesNotContain("bucket"));
-		assertThat(this.registry.find("http.client.requests")
+		assertThat(this.registry.get("http.client.requests")
-				.tags("method", "GET", "uri", "/test/{id}", "status", "200")
+				.tags("method", "GET", "uri", "/test/{id}", "status", "200").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1);
 		assertThat(result).isEqualTo("OK");
 		mockServer.verify();
 	}

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/servlet/WebMvcMetricsFilterAutoTimedTests.java

@@ -72,9 +72,8 @@ public class WebMvcMetricsFilterAutoTimedTests {
 	@Test
 	public void metricsCanBeAutoTimed() throws Exception {
 		this.mvc.perform(get("/api/10")).andExpect(status().isOk());
-		assertThat(
+		assertThat(this.registry.get("http.server.requests").tags("status", "200").timer()
-				this.registry.find("http.server.requests").tags("status", "200").timer())
+				.count()).isEqualTo(1L);
-						.hasValueSatisfying((t) -> assertThat(t.count()).isEqualTo(1));
 	}
 
 	@Configuration

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/servlet/WebMvcMetricsFilterTests.java

@@ -34,7 +34,6 @@ import io.micrometer.core.annotation.Timed;
 import io.micrometer.core.instrument.Clock;
 import io.micrometer.core.instrument.Meter;
 import io.micrometer.core.instrument.MeterRegistry;
-import io.micrometer.core.instrument.Statistic;
 import io.micrometer.core.instrument.Tag;
 import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
 import io.micrometer.core.instrument.config.MeterFilter;
@@ -112,38 +111,38 @@ public class WebMvcMetricsFilterTests {
 	@Test
 	public void timedMethod() throws Exception {
 		this.mvc.perform(get("/api/c1/10")).andExpect(status().isOk());
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("status", "200", "uri", "/api/c1/{id}", "public", "true")
+				.tags("status", "200", "uri", "/api/c1/{id}", "public", "true").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1L);
 	}
 
 	@Test
 	public void subclassedTimedMethod() throws Exception {
 		this.mvc.perform(get("/api/c1/metaTimed/10")).andExpect(status().isOk());
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("status", "200", "uri", "/api/c1/metaTimed/{id}")
+				.tags("status", "200", "uri", "/api/c1/metaTimed/{id}").timer().count())
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+						.isEqualTo(1L);
 	}
 
 	@Test
 	public void untimedMethod() throws Exception {
 		this.mvc.perform(get("/api/c1/untimed/10")).andExpect(status().isOk());
 		assertThat(this.registry.find("http.server.requests")
-				.tags("uri", "/api/c1/untimed/10").timer()).isEmpty();
+				.tags("uri", "/api/c1/untimed/10").timer()).isNull();
 	}
 
 	@Test
 	public void timedControllerClass() throws Exception {
 		this.mvc.perform(get("/api/c2/10")).andExpect(status().isOk());
-		assertThat(this.registry.find("http.server.requests").tags("status", "200")
+		assertThat(this.registry.get("http.server.requests").tags("status", "200").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1L);
 	}
 
 	@Test
 	public void badClientRequest() throws Exception {
 		this.mvc.perform(get("/api/c1/oops")).andExpect(status().is4xxClientError());
-		assertThat(this.registry.find("http.server.requests").tags("status", "400")
+		assertThat(this.registry.get("http.server.requests").tags("status", "400").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1L);
 	}
 
 	@Test
@@ -151,8 +150,8 @@ public class WebMvcMetricsFilterTests {
 		this.mvc.perform(get("/api/redirect")
 				.header(RedirectAndNotFoundFilter.TEST_MISBEHAVE_HEADER, "302"))
 				.andExpect(status().is3xxRedirection());
-		assertThat(this.registry.find("http.server.requests").tags("uri", "REDIRECTION")
+		assertThat(this.registry.get("http.server.requests").tags("uri", "REDIRECTION")
-				.tags("status", "302").timer()).isPresent();
+				.tags("status", "302").timer()).isNotNull();
 	}
 
 	@Test
@@ -160,8 +159,8 @@ public class WebMvcMetricsFilterTests {
 		this.mvc.perform(get("/api/not/found")
 				.header(RedirectAndNotFoundFilter.TEST_MISBEHAVE_HEADER, "404"))
 				.andExpect(status().is4xxClientError());
-		assertThat(this.registry.find("http.server.requests").tags("uri", "NOT_FOUND")
+		assertThat(this.registry.get("http.server.requests").tags("uri", "NOT_FOUND")
-				.tags("status", "404").timer()).isPresent();
+				.tags("status", "404").timer()).isNotNull();
 	}
 
 	@Test
@@ -169,9 +168,8 @@ public class WebMvcMetricsFilterTests {
 		assertThatCode(() -> this.mvc.perform(get("/api/c1/unhandledError/10"))
 				.andExpect(status().isOk()))
 						.hasRootCauseInstanceOf(RuntimeException.class);
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("exception", "RuntimeException").value(Statistic.Count, 1.0)
+				.tags("exception", "RuntimeException").timer().count()).isEqualTo(1L);
-				.timer()).isPresent();
 	}
 
 	@Test
@@ -180,30 +178,30 @@ public class WebMvcMetricsFilterTests {
 				.andExpect(request().asyncStarted()).andReturn();
 		// the request is not prematurely recorded as complete
 		assertThat(this.registry.find("http.server.requests").tags("uri", "/api/c1/async")
-				.timer()).isNotPresent();
+				.timer()).isNull();
 		// while the mapping is running, it contributes to the activeTasks count
-		assertThat(this.registry.find("my.long.request").tags("region", "test")
+		assertThat(this.registry.get("my.long.request").tags("region", "test")
-				.value(Statistic.Count, 1.0).longTaskTimer()).isPresent();
+				.longTaskTimer().activeTasks()).isEqualTo(1);
 		// once the mapping completes, we can gather information about status, etc.
 		this.asyncLatch.countDown();
 		this.mvc.perform(asyncDispatch(result)).andExpect(status().isOk());
-		assertThat(this.registry.find("http.server.requests").tags("status", "200")
+		assertThat(this.registry.get("http.server.requests").tags("status", "200").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1L);
 	}
 
 	@Test
 	public void endpointThrowsError() throws Exception {
 		this.mvc.perform(get("/api/c1/error/10")).andExpect(status().is4xxClientError());
-		assertThat(this.registry.find("http.server.requests").tags("status", "422")
+		assertThat(this.registry.get("http.server.requests").tags("status", "422").timer()
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+				.count()).isEqualTo(1L);
 	}
 
 	@Test
 	public void regexBasedRequestMapping() throws Exception {
 		this.mvc.perform(get("/api/c1/regex/.abc")).andExpect(status().isOk());
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("uri", "/api/c1/regex/{id:\\.[a-z]+}").value(Statistic.Count, 1.0)
+				.tags("uri", "/api/c1/regex/{id:\\.[a-z]+}").timer().count())
-				.timer()).isPresent();
+						.isEqualTo(1L);
 	}
 
 	@Test

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/servlet/WebMvcMetricsIntegrationTests.java

@@ -20,7 +20,6 @@ import io.micrometer.core.annotation.Timed;
 import io.micrometer.core.instrument.Clock;
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.MockClock;
-import io.micrometer.core.instrument.Statistic;
 import io.micrometer.core.instrument.simple.SimpleConfig;
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
 import org.junit.Before;
@@ -79,18 +78,18 @@ public class WebMvcMetricsIntegrationTests {
 	@Test
 	public void handledExceptionIsRecordedInMetricTag() throws Exception {
 		this.mvc.perform(get("/api/handledError")).andExpect(status().is5xxServerError());
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("exception", "Exception1", "status", "500")
+				.tags("exception", "Exception1", "status", "500").timer().count())
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+						.isEqualTo(1L);
 	}
 
 	@Test
 	public void rethrownExceptionIsRecordedInMetricTag() {
 		assertThatCode(() -> this.mvc.perform(get("/api/rethrownError"))
 				.andExpect(status().is5xxServerError()));
-		assertThat(this.registry.find("http.server.requests")
+		assertThat(this.registry.get("http.server.requests")
-				.tags("exception", "Exception2", "status", "500")
+				.tags("exception", "Exception2", "status", "500").timer().count())
-				.value(Statistic.Count, 1.0).timer()).isPresent();
+						.isEqualTo(1L);
 	}
 
 	@Configuration

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -112,7 +112,7 @@
 		<logback.version>1.2.3</logback.version>
 		<lombok.version>1.16.20</lombok.version>
 		<mariadb.version>2.2.1</mariadb.version>
-		<micrometer.version>1.0.0-rc.7</micrometer.version>
+		<micrometer.version>1.0.0-SNAPSHOT</micrometer.version>
 		<mssql-jdbc.version>6.2.2.jre8</mssql-jdbc.version>
 		<mockito.version>2.13.0</mockito.version>
 		<mongo-driver-reactivestreams.version>1.7.0</mongo-driver-reactivestreams.version>