Support mixed case endpoint IDs with enabled

Update `OnEnabledEndpointCondition` so that mixed case endpoint IDs
are supported. Prior to this commit an
`InvalidConfigurationPropertyNameException` would be thrown when trying
to enabled or disable an endpoint with a camel case ID.

See gh-14773

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/condition/OnEnabledEndpointCondition.java

@@ -19,6 +19,7 @@ package org.springframework.boot.actuate.autoconfigure.endpoint.condition;
 import java.util.Map;
 import java.util.Optional;
 
+import org.springframework.boot.actuate.endpoint.EndpointId;
 import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
 import org.springframework.boot.actuate.endpoint.annotation.EndpointExtension;
 import org.springframework.boot.autoconfigure.condition.ConditionMessage;
@@ -54,8 +55,8 @@ class OnEnabledEndpointCondition extends SpringBootCondition {
 			AnnotatedTypeMetadata metadata) {
 		Environment environment = context.getEnvironment();
 		AnnotationAttributes attributes = getEndpointAttributes(context, metadata);
-		String id = attributes.getString("id");
-		String key = "management.endpoint." + id + ".enabled";
+		EndpointId id = EndpointId.of(attributes.getString("id"));
+		String key = "management.endpoint." + id.toLowerCaseString() + ".enabled";
 		Boolean userDefinedEnabled = environment.getProperty(key, Boolean.class);
 		if (userDefinedEnabled != null) {
 			return new ConditionOutcome(userDefinedEnabled,

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/endpoint/condition/ConditionalOnEnabledEndpointTests.java

@@ -140,6 +140,14 @@ public class ConditionalOnEnabledEndpointTests {
 				});
 	}
 
+	@Test
+	public void outcomeWhenEndpointEnabledPropertyIsTrueAndMixedCaseShouldMatch() {
+		this.contextRunner.withPropertyValues("management.endpoint.foo-bar.enabled=true")
+				.withUserConfiguration(
+						FooBarEndpointEnabledByDefaultFalseConfiguration.class)
+				.run((context) -> assertThat(context).hasBean("fooBar"));
+	}
+
 	@Endpoint(id = "foo", enableByDefault = true)
 	static class FooEndpointEnabledByDefaultTrue {
 
@@ -150,6 +158,11 @@ public class ConditionalOnEnabledEndpointTests {
 
 	}
 
+	@Endpoint(id = "fooBar", enableByDefault = false)
+	static class FooBarEndpointEnabledByDefaultFalse {
+
+	}
+
 	@EndpointExtension(endpoint = FooEndpointEnabledByDefaultTrue.class, filter = TestFilter.class)
 	static class FooEndpointExtensionEnabledByDefaultTrue {
 
@@ -191,6 +204,17 @@ public class ConditionalOnEnabledEndpointTests {
 
 	}
 
+	@Configuration
+	static class FooBarEndpointEnabledByDefaultFalseConfiguration {
+
+		@Bean
+		@ConditionalOnEnabledEndpoint
+		public FooBarEndpointEnabledByDefaultFalse fooBar() {
+			return new FooBarEndpointEnabledByDefaultFalse();
+		}
+
+	}
+
 	@Configuration
 	static class FooEndpointAndExtensionEnabledByDefaultTrueConfiguration {