Merge pull request #44320 from izeye

* pr/44320:
  Polish "Remove deprecated micrometer.observations.annotations.enabled"
  Remove deprecated micrometer.observations.annotations.enabled

Closes gh-44320

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

@@ -23,16 +23,13 @@ import io.micrometer.core.instrument.MeterRegistry;
 import org.aspectj.weaver.Advice;
 
 import org.springframework.beans.factory.ObjectProvider;
-import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAspectsAutoConfiguration.ObservationAnnotationsEnabledCondition;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBooleanProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Conditional;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for Micrometer-based metrics
@@ -43,7 +40,7 @@ import org.springframework.context.annotation.Conditional;
  */
 @AutoConfiguration(after = { MetricsAutoConfiguration.class, CompositeMeterRegistryAutoConfiguration.class })
 @ConditionalOnClass({ MeterRegistry.class, Advice.class })
-@Conditional(ObservationAnnotationsEnabledCondition.class)
+@ConditionalOnBooleanProperty("management.observations.annotations.enabled")
 @ConditionalOnBean(MeterRegistry.class)
 public class MetricsAspectsAutoConfiguration {
 
@@ -62,22 +59,4 @@ public class MetricsAspectsAutoConfiguration {
 		return timedAspect;
 	}
 
-	static final class ObservationAnnotationsEnabledCondition extends AnyNestedCondition {
-
-		ObservationAnnotationsEnabledCondition() {
-			super(ConfigurationPhase.PARSE_CONFIGURATION);
-		}
-
-		@ConditionalOnBooleanProperty("micrometer.observations.annotations.enabled")
-		static class MicrometerObservationsEnabledCondition {
-
-		}
-
-		@ConditionalOnBooleanProperty("management.observations.annotations.enabled")
-		static class ManagementObservationsEnabledCondition {
-
-		}
-
-	}
-
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/tracing/MicrometerTracingAutoConfiguration.java

@@ -33,13 +33,11 @@ import org.aspectj.weaver.Advice;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBooleanProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Conditional;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
@@ -104,7 +102,7 @@ public class MicrometerTracingAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(Advice.class)
-	@Conditional(ObservationAnnotationsEnabledCondition.class)
+	@ConditionalOnBooleanProperty("management.observations.annotations.enabled")
 	static class SpanAspectConfiguration {
 
 		@Bean
@@ -152,22 +150,4 @@ public class MicrometerTracingAutoConfiguration {
 
 	}
 
-	static final class ObservationAnnotationsEnabledCondition extends AnyNestedCondition {
-
-		ObservationAnnotationsEnabledCondition() {
-			super(ConfigurationPhase.PARSE_CONFIGURATION);
-		}
-
-		@ConditionalOnBooleanProperty("micrometer.observations.annotations.enabled")
-		static class MicrometerObservationsEnabledCondition {
-
-		}
-
-		@ConditionalOnBooleanProperty("management.observations.annotations.enabled")
-		static class ManagementObservationsEnabledCondition {
-
-		}
-
-	}
-
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -2247,14 +2247,6 @@
       "name": "management.zipkin.tracing.export.enabled",
       "type": "java.lang.Boolean",
       "description": "Whether auto-configuration of tracing is enabled to export Zipkin traces."
-    },
-    {
-      "name": "micrometer.observations.annotations.enabled",
-      "type": "java.lang.Boolean",
-      "deprecation": {
-        "level": "error",
-        "replacement": "management.observations.annotations.enabled"
-      }
     }
   ],
   "hints": [

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2024 the original author or authors.
+ * Copyright 2012-2025 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.
@@ -54,17 +54,6 @@ class MetricsAspectsAutoConfigurationTests {
 			});
 	}
 
-	@Test
-	void shouldConfigureAspectsWithLegacyProperty() {
-		new ApplicationContextRunner().with(MetricsRun.simple())
-			.withConfiguration(AutoConfigurations.of(MetricsAspectsAutoConfiguration.class))
-			.withPropertyValues("micrometer.observations.annotations.enabled=true")
-			.run((context) -> {
-				assertThat(context).hasSingleBean(CountedAspect.class);
-				assertThat(context).hasSingleBean(TimedAspect.class);
-			});
-	}
-
 	@Test
 	void shouldConfigureAspects() {
 		this.contextRunner.run((context) -> {

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/tracing/MicrometerTracingAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2024 the original author or authors.
+ * Copyright 2012-2025 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.
@@ -145,18 +145,6 @@ class MicrometerTracingAutoConfigurationTests {
 			});
 	}
 
-	@Test
-	void shouldSupplyAspectBeansIfLegacyPropertyIsEnabled() {
-		new ApplicationContextRunner().withPropertyValues("micrometer.observations.annotations.enabled=true")
-			.withConfiguration(AutoConfigurations.of(MicrometerTracingAutoConfiguration.class))
-			.withUserConfiguration(TracerConfiguration.class, PropagatorConfiguration.class)
-			.run((context) -> {
-				assertThat(context).hasSingleBean(DefaultNewSpanParser.class);
-				assertThat(context).hasSingleBean(ImperativeMethodInvocationProcessor.class);
-				assertThat(context).hasSingleBean(SpanAspect.class);
-			});
-	}
-
 	@Test
 	void shouldNotSupplyBeansIfAspectjIsMissing() {
 		this.contextRunner.withUserConfiguration(TracerConfiguration.class)