Move server-specific knowledge out of general child context creation

Issue: 44200

spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle

@@ -62,6 +62,7 @@ dependencies {
 	optional("io.r2dbc:r2dbc-pool")
 	optional("io.r2dbc:r2dbc-proxy")
 	optional("io.r2dbc:r2dbc-spi")
+	optional("io.undertow:undertow-servlet")
 	optional("jakarta.jms:jakarta.jms-api")
 	optional("jakarta.persistence:jakarta.persistence-api")
 	optional("jakarta.servlet:jakarta.servlet-api")

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/reactive/ReactiveManagementChildContextConfiguration.java

@@ -16,33 +16,19 @@
 
 package org.springframework.boot.actuate.autoconfigure.web.reactive;
 
-import java.io.File;
 import java.util.Collections;
 import java.util.Map;
 
-import org.apache.catalina.Valve;
-import org.apache.catalina.valves.AccessLogValve;
-import org.eclipse.jetty.server.CustomRequestLog;
-import org.eclipse.jetty.server.RequestLog;
-import org.eclipse.jetty.server.RequestLogWriter;
-import org.eclipse.jetty.server.Server;
-
 import org.springframework.beans.factory.ListableBeanFactory;
 import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
 import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
 import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
 import org.springframework.boot.actuate.autoconfigure.web.server.ManagementWebServerFactoryCustomizer;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
-import org.springframework.boot.web.embedded.jetty.JettyReactiveWebServerFactory;
-import org.springframework.boot.web.embedded.tomcat.TomcatReactiveWebServerFactory;
-import org.springframework.boot.web.embedded.undertow.UndertowReactiveWebServerFactory;
 import org.springframework.boot.web.server.ConfigurableWebServerFactory;
-import org.springframework.boot.web.server.WebServerFactoryCustomizer;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
-import org.springframework.core.Ordered;
 import org.springframework.http.server.reactive.ContextPathCompositeHandler;
 import org.springframework.http.server.reactive.HttpHandler;
 import org.springframework.util.StringUtils;
@@ -80,127 +66,4 @@ public class ReactiveManagementChildContextConfiguration {
 		return httpHandler;
 	}
 
-	@Bean
-	@ConditionalOnClass(name = "io.undertow.Undertow")
-	UndertowAccessLogCustomizer undertowManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new UndertowAccessLogCustomizer(properties);
-	}
-
-	@Bean
-	@ConditionalOnClass(name = "org.apache.catalina.valves.AccessLogValve")
-	TomcatAccessLogCustomizer tomcatManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new TomcatAccessLogCustomizer(properties);
-	}
-
-	@Bean
-	@ConditionalOnClass(name = "org.eclipse.jetty.server.Server")
-	JettyAccessLogCustomizer jettyManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new JettyAccessLogCustomizer(properties);
-	}
-
-	abstract static class AccessLogCustomizer implements Ordered {
-
-		private final String prefix;
-
-		AccessLogCustomizer(String prefix) {
-			this.prefix = prefix;
-		}
-
-		protected String customizePrefix(String existingPrefix) {
-			if (this.prefix == null) {
-				return existingPrefix;
-			}
-			if (existingPrefix == null) {
-				return this.prefix;
-			}
-			if (existingPrefix.startsWith(this.prefix)) {
-				return existingPrefix;
-			}
-			return this.prefix + existingPrefix;
-		}
-
-		@Override
-		public int getOrder() {
-			return 1;
-		}
-
-	}
-
-	static class TomcatAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<TomcatReactiveWebServerFactory> {
-
-		TomcatAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getTomcat().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(TomcatReactiveWebServerFactory factory) {
-			AccessLogValve accessLogValve = findAccessLogValve(factory);
-			if (accessLogValve == null) {
-				return;
-			}
-			accessLogValve.setPrefix(customizePrefix(accessLogValve.getPrefix()));
-		}
-
-		private AccessLogValve findAccessLogValve(TomcatReactiveWebServerFactory factory) {
-			for (Valve engineValve : factory.getEngineValves()) {
-				if (engineValve instanceof AccessLogValve accessLogValve) {
-					return accessLogValve;
-				}
-			}
-			return null;
-		}
-
-	}
-
-	static class UndertowAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<UndertowReactiveWebServerFactory> {
-
-		UndertowAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getUndertow().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(UndertowReactiveWebServerFactory factory) {
-			factory.setAccessLogPrefix(customizePrefix(factory.getAccessLogPrefix()));
-		}
-
-	}
-
-	static class JettyAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<JettyReactiveWebServerFactory> {
-
-		JettyAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getJetty().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(JettyReactiveWebServerFactory factory) {
-			factory.addServerCustomizers(this::customizeServer);
-		}
-
-		private void customizeServer(Server server) {
-			RequestLog requestLog = server.getRequestLog();
-			if (requestLog instanceof CustomRequestLog customRequestLog) {
-				customizeRequestLog(customRequestLog);
-			}
-		}
-
-		private void customizeRequestLog(CustomRequestLog requestLog) {
-			if (requestLog.getWriter() instanceof RequestLogWriter requestLogWriter) {
-				customizeRequestLogWriter(requestLogWriter);
-			}
-		}
-
-		private void customizeRequestLogWriter(RequestLogWriter writer) {
-			String filename = writer.getFileName();
-			if (StringUtils.hasLength(filename)) {
-				File file = new File(filename);
-				file = new File(file.getParentFile(), customizePrefix(file.getName()));
-				writer.setFilename(file.getPath());
-			}
-		}
-
-	}
-
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/AccessLogCustomizer.java

@@ -0,0 +1,58 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server;
+
+import org.springframework.boot.web.server.WebServerFactory;
+import org.springframework.boot.web.server.WebServerFactoryCustomizer;
+import org.springframework.core.Ordered;
+
+/**
+ * Base class for a {@link WebServerFactoryCustomizer} that customizes the web server's
+ * access log.
+ *
+ * @param <T> the {@link WebServerFactory} type that can be customized
+ * @author Andy Wilkinson
+ * @since 4.0.0
+ */
+public abstract class AccessLogCustomizer<T extends WebServerFactory>
+		implements WebServerFactoryCustomizer<T>, Ordered {
+
+	private final String prefix;
+
+	protected AccessLogCustomizer(String prefix) {
+		this.prefix = prefix;
+	}
+
+	protected String customizePrefix(String existingPrefix) {
+		if (this.prefix == null) {
+			return existingPrefix;
+		}
+		if (existingPrefix == null) {
+			return this.prefix;
+		}
+		if (existingPrefix.startsWith(this.prefix)) {
+			return existingPrefix;
+		}
+		return this.prefix + existingPrefix;
+	}
+
+	@Override
+	public int getOrder() {
+		return 1;
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/jetty/JettyAccessLogCustomizer.java

@@ -0,0 +1,71 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.jetty;
+
+import java.io.File;
+
+import org.eclipse.jetty.server.CustomRequestLog;
+import org.eclipse.jetty.server.RequestLog;
+import org.eclipse.jetty.server.RequestLogWriter;
+import org.eclipse.jetty.server.Server;
+
+import org.springframework.boot.actuate.autoconfigure.web.server.AccessLogCustomizer;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.web.embedded.jetty.ConfigurableJettyWebServerFactory;
+import org.springframework.boot.web.server.WebServerFactoryCustomizer;
+import org.springframework.util.StringUtils;
+
+/**
+ * {@link AccessLogCustomizer} for Jetty.
+ *
+ * @author Andy Wilkinson
+ */
+class JettyAccessLogCustomizer extends AccessLogCustomizer<ConfigurableJettyWebServerFactory>
+		implements WebServerFactoryCustomizer<ConfigurableJettyWebServerFactory> {
+
+	JettyAccessLogCustomizer(ManagementServerProperties properties) {
+		super(properties.getJetty().getAccesslog().getPrefix());
+	}
+
+	@Override
+	public void customize(ConfigurableJettyWebServerFactory factory) {
+		factory.addServerCustomizers(this::customizeServer);
+	}
+
+	private void customizeServer(Server server) {
+		RequestLog requestLog = server.getRequestLog();
+		if (requestLog instanceof CustomRequestLog customRequestLog) {
+			customizeRequestLog(customRequestLog);
+		}
+	}
+
+	private void customizeRequestLog(CustomRequestLog requestLog) {
+		if (requestLog.getWriter() instanceof RequestLogWriter requestLogWriter) {
+			customizeRequestLogWriter(requestLogWriter);
+		}
+	}
+
+	private void customizeRequestLogWriter(RequestLogWriter writer) {
+		String filename = writer.getFileName();
+		if (StringUtils.hasLength(filename)) {
+			File file = new File(filename);
+			file = new File(file.getParentFile(), customizePrefix(file.getName()));
+			writer.setFilename(file.getPath());
+		}
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/jetty/JettyReactiveManagementChildContextConfiguration.java

@@ -0,0 +1,48 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.jetty;
+
+import org.eclipse.jetty.server.Server;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for Jetty-based
+ * reactive web endpoint infrastructure when a separate management context running on a
+ * different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Server.class)
+@ConditionalOnWebApplication(type = Type.REACTIVE)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class JettyReactiveManagementChildContextConfiguration {
+
+	@Bean
+	JettyAccessLogCustomizer jettyManagementAccessLogCustomizer(ManagementServerProperties properties) {
+		return new JettyAccessLogCustomizer(properties);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/jetty/JettyServletManagementChildContextConfiguration.java

@@ -0,0 +1,48 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.jetty;
+
+import org.eclipse.jetty.server.Server;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for Jetty-based
+ * servlet web endpoint infrastructure when a separate management context running on a
+ * different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Server.class)
+@ConditionalOnWebApplication(type = Type.SERVLET)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class JettyServletManagementChildContextConfiguration {
+
+	@Bean
+	JettyAccessLogCustomizer jettyManagementAccessLogCustomizer(ManagementServerProperties properties) {
+		return new JettyAccessLogCustomizer(properties);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/jetty/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Actuator Jetty web server support.
+ */
+package org.springframework.boot.actuate.autoconfigure.web.server.jetty;

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/tomcat/TomcatAccessLogCustomizer.java

@@ -0,0 +1,63 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.tomcat;
+
+import java.util.Collection;
+import java.util.function.Function;
+
+import org.apache.catalina.Valve;
+import org.apache.catalina.valves.AccessLogValve;
+
+import org.springframework.boot.actuate.autoconfigure.web.server.AccessLogCustomizer;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.web.embedded.tomcat.ConfigurableTomcatWebServerFactory;
+
+/**
+ * {@link AccessLogCustomizer} for Tomcat.
+ *
+ * @param <T> the type of factory that can be customized
+ * @author Andy Wilkinson
+ */
+class TomcatAccessLogCustomizer<T extends ConfigurableTomcatWebServerFactory> extends AccessLogCustomizer<T> {
+
+	private final Function<T, Collection<Valve>> engineValvesExtractor;
+
+	TomcatAccessLogCustomizer(ManagementServerProperties properties,
+			Function<T, Collection<Valve>> engineValvesExtractor) {
+		super(properties.getTomcat().getAccesslog().getPrefix());
+		this.engineValvesExtractor = engineValvesExtractor;
+	}
+
+	@Override
+	public void customize(T factory) {
+		AccessLogValve accessLogValve = findAccessLogValve(factory);
+		if (accessLogValve == null) {
+			return;
+		}
+		accessLogValve.setPrefix(customizePrefix(accessLogValve.getPrefix()));
+	}
+
+	private AccessLogValve findAccessLogValve(T factory) {
+		for (Valve engineValve : this.engineValvesExtractor.apply(factory)) {
+			if (engineValve instanceof AccessLogValve accessLogValve) {
+				return accessLogValve;
+			}
+		}
+		return null;
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/tomcat/TomcatReactiveManagementChildContextConfiguration.java

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.tomcat;
+
+import org.apache.catalina.startup.Tomcat;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.web.embedded.tomcat.TomcatReactiveWebServerFactory;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for Tomcat-based
+ * reactive web endpoint infrastructure when a separate management context running on a
+ * different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Tomcat.class)
+@ConditionalOnWebApplication(type = Type.REACTIVE)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class TomcatReactiveManagementChildContextConfiguration {
+
+	@Bean
+	TomcatAccessLogCustomizer<TomcatReactiveWebServerFactory> tomcatManagementAccessLogCustomizer(
+			ManagementServerProperties properties) {
+		return new TomcatAccessLogCustomizer<>(properties, TomcatReactiveWebServerFactory::getEngineValves);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/tomcat/TomcatServletManagementChildContextConfiguration.java

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.tomcat;
+
+import org.apache.catalina.startup.Tomcat;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for Tomcat-based
+ * servlet web endpoint infrastructure when a separate management context running on a
+ * different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Tomcat.class)
+@ConditionalOnWebApplication(type = Type.SERVLET)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class TomcatServletManagementChildContextConfiguration {
+
+	@Bean
+	TomcatAccessLogCustomizer<TomcatServletWebServerFactory> tomcatManagementAccessLogCustomizer(
+			ManagementServerProperties properties) {
+		return new TomcatAccessLogCustomizer<>(properties, TomcatServletWebServerFactory::getEngineValves);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/tomcat/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Actuator Tomcat web server support.
+ */
+package org.springframework.boot.actuate.autoconfigure.web.server.tomcat;

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/undertow/UndertowAccessLogCustomizer.java

@@ -0,0 +1,45 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.undertow;
+
+import java.util.function.Function;
+
+import org.springframework.boot.actuate.autoconfigure.web.server.AccessLogCustomizer;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.web.embedded.undertow.ConfigurableUndertowWebServerFactory;
+
+/**
+ * {@link AccessLogCustomizer} for Undertow.
+ *
+ * @param <T> the type of factory that can be customized
+ * @author Andy Wilkinson
+ */
+class UndertowAccessLogCustomizer<T extends ConfigurableUndertowWebServerFactory> extends AccessLogCustomizer<T> {
+
+	private final Function<T, String> accessLogPrefixExtractor;
+
+	UndertowAccessLogCustomizer(ManagementServerProperties properties, Function<T, String> accessLogPrefixExtractor) {
+		super(properties.getUndertow().getAccesslog().getPrefix());
+		this.accessLogPrefixExtractor = accessLogPrefixExtractor;
+	}
+
+	@Override
+	public void customize(T factory) {
+		factory.setAccessLogPrefix(customizePrefix(this.accessLogPrefixExtractor.apply(factory)));
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/undertow/UndertowReactiveManagementChildContextConfiguration.java

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.undertow;
+
+import io.undertow.Undertow;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.web.embedded.undertow.UndertowReactiveWebServerFactory;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for
+ * Undertow-based reactive web endpoint infrastructure when a separate management context
+ * running on a different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Undertow.class)
+@ConditionalOnWebApplication(type = Type.REACTIVE)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class UndertowReactiveManagementChildContextConfiguration {
+
+	@Bean
+	UndertowAccessLogCustomizer<UndertowReactiveWebServerFactory> undertowManagementAccessLogCustomizer(
+			ManagementServerProperties properties) {
+		return new UndertowAccessLogCustomizer<>(properties, UndertowReactiveWebServerFactory::getAccessLogPrefix);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/undertow/UndertowServletManagementChildContextConfiguration.java

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.server.undertow;
+
+import io.undertow.Undertow;
+
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
+import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * {@link ManagementContextConfiguration @ManagementContextConfiguration} for
+ * Undertow-based servlet web endpoint infrastructure when a separate management context
+ * running on a different port is required.
+ *
+ * @author Andy Wilkinson
+ */
+@ConditionalOnClass(Undertow.class)
+@ConditionalOnWebApplication(type = Type.SERVLET)
+@EnableConfigurationProperties(ManagementServerProperties.class)
+@ManagementContextConfiguration(value = ManagementContextType.CHILD, proxyBeanMethods = false)
+class UndertowServletManagementChildContextConfiguration {
+
+	@Bean
+	UndertowAccessLogCustomizer<UndertowServletWebServerFactory> undertowManagementAccessLogCustomizer(
+			ManagementServerProperties properties) {
+		return new UndertowAccessLogCustomizer<>(properties, UndertowServletWebServerFactory::getAccessLogPrefix);
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/undertow/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Actuator Undertow web server support.
+ */
+package org.springframework.boot.actuate.autoconfigure.web.server.undertow;

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/ServletManagementChildContextConfiguration.java

@@ -16,41 +16,23 @@
 
 package org.springframework.boot.actuate.autoconfigure.web.servlet;
 
-import java.io.File;
-
 import jakarta.servlet.Filter;
-import org.apache.catalina.Valve;
-import org.apache.catalina.valves.AccessLogValve;
-import org.eclipse.jetty.server.CustomRequestLog;
-import org.eclipse.jetty.server.RequestLog;
-import org.eclipse.jetty.server.RequestLogWriter;
-import org.eclipse.jetty.server.Server;
 
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.HierarchicalBeanFactory;
 import org.springframework.beans.factory.ListableBeanFactory;
 import org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration;
 import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
-import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
-import org.springframework.boot.actuate.autoconfigure.web.server.ManagementWebServerFactoryCustomizer;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
 import org.springframework.boot.autoconfigure.condition.SearchStrategy;
-import org.springframework.boot.autoconfigure.web.ServerProperties;
-import org.springframework.boot.web.embedded.jetty.JettyServletWebServerFactory;
-import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
-import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
-import org.springframework.boot.web.server.WebServerFactoryCustomizer;
 import org.springframework.boot.web.servlet.DelegatingFilterProxyRegistrationBean;
-import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.core.Ordered;
 import org.springframework.security.config.BeanIds;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.util.StringUtils;
 
 /**
  * {@link ManagementContextConfiguration @ManagementContextConfiguration} for Servlet web
@@ -74,24 +56,6 @@ class ServletManagementChildContextConfiguration {
 		return new ServletManagementWebServerFactoryCustomizer(beanFactory);
 	}
 
-	@Bean
-	@ConditionalOnClass(name = "io.undertow.Undertow")
-	UndertowAccessLogCustomizer undertowManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new UndertowAccessLogCustomizer(properties);
-	}
-
-	@Bean
-	@ConditionalOnClass(name = "org.apache.catalina.valves.AccessLogValve")
-	TomcatAccessLogCustomizer tomcatManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new TomcatAccessLogCustomizer(properties);
-	}
-
-	@Bean
-	@ConditionalOnClass(name = "org.eclipse.jetty.server.Server")
-	JettyAccessLogCustomizer jettyManagementAccessLogCustomizer(ManagementServerProperties properties) {
-		return new JettyAccessLogCustomizer(properties);
-	}
-
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass({ EnableWebSecurity.class, Filter.class })
 	@ConditionalOnBean(name = BeanIds.SPRING_SECURITY_FILTER_CHAIN, search = SearchStrategy.ANCESTORS)
@@ -112,130 +76,4 @@ class ServletManagementChildContextConfiguration {
 
 	}
 
-	static class ServletManagementWebServerFactoryCustomizer
-			extends ManagementWebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
-
-		ServletManagementWebServerFactoryCustomizer(ListableBeanFactory beanFactory) {
-			super(beanFactory);
-		}
-
-		@Override
-		protected void customize(ConfigurableServletWebServerFactory webServerFactory,
-				ManagementServerProperties managementServerProperties, ServerProperties serverProperties) {
-			super.customize(webServerFactory, managementServerProperties, serverProperties);
-			webServerFactory.setContextPath(getContextPath(managementServerProperties));
-		}
-
-		private String getContextPath(ManagementServerProperties managementServerProperties) {
-			String basePath = managementServerProperties.getBasePath();
-			return StringUtils.hasText(basePath) ? basePath : "";
-		}
-
-	}
-
-	abstract static class AccessLogCustomizer implements Ordered {
-
-		private final String prefix;
-
-		AccessLogCustomizer(String prefix) {
-			this.prefix = prefix;
-		}
-
-		protected String customizePrefix(String existingPrefix) {
-			if (this.prefix == null) {
-				return existingPrefix;
-			}
-			if (existingPrefix == null) {
-				return this.prefix;
-			}
-			if (existingPrefix.startsWith(this.prefix)) {
-				return existingPrefix;
-			}
-			return this.prefix + existingPrefix;
-		}
-
-		@Override
-		public int getOrder() {
-			return 1;
-		}
-
-	}
-
-	static class TomcatAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<TomcatServletWebServerFactory> {
-
-		TomcatAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getTomcat().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(TomcatServletWebServerFactory factory) {
-			AccessLogValve accessLogValve = findAccessLogValve(factory);
-			if (accessLogValve == null) {
-				return;
-			}
-			accessLogValve.setPrefix(customizePrefix(accessLogValve.getPrefix()));
-		}
-
-		private AccessLogValve findAccessLogValve(TomcatServletWebServerFactory factory) {
-			for (Valve engineValve : factory.getEngineValves()) {
-				if (engineValve instanceof AccessLogValve accessLogValve) {
-					return accessLogValve;
-				}
-			}
-			return null;
-		}
-
-	}
-
-	static class UndertowAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<UndertowServletWebServerFactory> {
-
-		UndertowAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getUndertow().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(UndertowServletWebServerFactory factory) {
-			factory.setAccessLogPrefix(customizePrefix(factory.getAccessLogPrefix()));
-		}
-
-	}
-
-	static class JettyAccessLogCustomizer extends AccessLogCustomizer
-			implements WebServerFactoryCustomizer<JettyServletWebServerFactory> {
-
-		JettyAccessLogCustomizer(ManagementServerProperties properties) {
-			super(properties.getJetty().getAccesslog().getPrefix());
-		}
-
-		@Override
-		public void customize(JettyServletWebServerFactory factory) {
-			factory.addServerCustomizers(this::customizeServer);
-		}
-
-		private void customizeServer(Server server) {
-			RequestLog requestLog = server.getRequestLog();
-			if (requestLog instanceof CustomRequestLog customRequestLog) {
-				customizeRequestLog(customRequestLog);
-			}
-		}
-
-		private void customizeRequestLog(CustomRequestLog requestLog) {
-			if (requestLog.getWriter() instanceof RequestLogWriter requestLogWriter) {
-				customizeRequestLogWriter(requestLogWriter);
-			}
-		}
-
-		private void customizeRequestLogWriter(RequestLogWriter writer) {
-			String filename = writer.getFileName();
-			if (StringUtils.hasLength(filename)) {
-				File file = new File(filename);
-				file = new File(file.getParentFile(), customizePrefix(file.getName()));
-				writer.setFilename(file.getPath());
-			}
-		}
-
-	}
-
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/ServletManagementWebServerFactoryCustomizer.java

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.web.servlet;
+
+import org.springframework.beans.factory.ListableBeanFactory;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
+import org.springframework.boot.actuate.autoconfigure.web.server.ManagementWebServerFactoryCustomizer;
+import org.springframework.boot.autoconfigure.web.ServerProperties;
+import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
+import org.springframework.util.StringUtils;
+
+/**
+ * {@link ManagementWebServerFactoryCustomizer} for a servlet web server.
+ *
+ * @author Andy Wilkinson
+ */
+class ServletManagementWebServerFactoryCustomizer
+		extends ManagementWebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
+
+	ServletManagementWebServerFactoryCustomizer(ListableBeanFactory beanFactory) {
+		super(beanFactory);
+	}
+
+	@Override
+	protected void customize(ConfigurableServletWebServerFactory webServerFactory,
+			ManagementServerProperties managementServerProperties, ServerProperties serverProperties) {
+		super.customize(webServerFactory, managementServerProperties, serverProperties);
+		webServerFactory.setContextPath(getContextPath(managementServerProperties));
+	}
+
+	private String getContextPath(ManagementServerProperties managementServerProperties) {
+		String basePath = managementServerProperties.getBasePath();
+		return StringUtils.hasText(basePath) ? basePath : "";
+	}
+
+}

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.actuate.autoconfigure.web.ManagementContextConfiguration.imports

@@ -6,5 +6,11 @@ org.springframework.boot.actuate.autoconfigure.security.servlet.SecurityRequestM
 org.springframework.boot.actuate.autoconfigure.web.jersey.JerseySameManagementContextConfiguration
 org.springframework.boot.actuate.autoconfigure.web.jersey.JerseyChildManagementContextConfiguration
 org.springframework.boot.actuate.autoconfigure.web.reactive.ReactiveManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.jetty.JettyReactiveManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.jetty.JettyServletManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.tomcat.TomcatReactiveManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.tomcat.TomcatServletManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.undertow.UndertowReactiveManagementChildContextConfiguration
+org.springframework.boot.actuate.autoconfigure.web.server.undertow.UndertowServletManagementChildContextConfiguration
 org.springframework.boot.actuate.autoconfigure.web.servlet.ServletManagementChildContextConfiguration
 org.springframework.boot.actuate.autoconfigure.web.servlet.WebMvcEndpointChildContextConfiguration

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/web/reactive/ReactiveManagementChildContextConfigurationTests.java

@@ -18,7 +18,6 @@ package org.springframework.boot.actuate.autoconfigure.web.reactive;
 
 import org.junit.jupiter.api.Test;
 
-import org.springframework.boot.actuate.autoconfigure.web.reactive.ReactiveManagementChildContextConfiguration.AccessLogCustomizer;
 import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
 import org.springframework.boot.test.context.runner.ReactiveWebApplicationContextRunner;
 
@@ -31,23 +30,6 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 class ReactiveManagementChildContextConfigurationTests {
 
-	@Test
-	void accessLogCustomizer() {
-		AccessLogCustomizer customizer = new AccessLogCustomizer("prefix") {
-		};
-		assertThat(customizer.customizePrefix(null)).isEqualTo("prefix");
-		assertThat(customizer.customizePrefix("existing")).isEqualTo("prefixexisting");
-		assertThat(customizer.customizePrefix("prefixexisting")).isEqualTo("prefixexisting");
-	}
-
-	@Test
-	void accessLogCustomizerWithNullPrefix() {
-		AccessLogCustomizer customizer = new AccessLogCustomizer(null) {
-		};
-		assertThat(customizer.customizePrefix(null)).isEqualTo(null);
-		assertThat(customizer.customizePrefix("existing")).isEqualTo("existing");
-	}
-
 	@Test
 	// gh-45857
 	void failsWithoutManagementServerPropertiesBeanFromParent() {

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/web/servlet/ServletManagementChildContextConfigurationTests.java

@@ -19,7 +19,6 @@ package org.springframework.boot.actuate.autoconfigure.web.servlet;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.actuate.autoconfigure.web.server.ManagementServerProperties;
-import org.springframework.boot.actuate.autoconfigure.web.servlet.ServletManagementChildContextConfiguration.AccessLogCustomizer;
 import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -31,38 +30,13 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 class ServletManagementChildContextConfigurationTests {
 
-	@Test
-	void accessLogCustomizer() {
-		AccessLogCustomizer customizer = new AccessLogCustomizer("prefix") {
-		};
-		assertThat(customizer.customizePrefix(null)).isEqualTo("prefix");
-		assertThat(customizer.customizePrefix("existing")).isEqualTo("prefixexisting");
-		assertThat(customizer.customizePrefix("prefixexisting")).isEqualTo("prefixexisting");
-	}
-
-	@Test
-	void accessLogCustomizerWithNullPrefix() {
-		AccessLogCustomizer customizer = new AccessLogCustomizer(null) {
-		};
-		assertThat(customizer.customizePrefix(null)).isEqualTo(null);
-		assertThat(customizer.customizePrefix("existing")).isEqualTo("existing");
-	}
-
-	@Test
-	// gh-45857
-	void failsWithoutManagementServerPropertiesBeanFromParent() {
-		new WebApplicationContextRunner().run((parent) -> new WebApplicationContextRunner().withParent(parent)
-			.withUserConfiguration(ServletManagementChildContextConfiguration.class)
-			.run((context) -> assertThat(context).hasFailed()));
-	}
-
-	@Test
-	// gh-45857
-	void succeedsWithManagementServerPropertiesBeanFromParent() {
+	@Test // gh-45857
+	void doesNotCreateManagementServerPropertiesInChildContext() {
 		new WebApplicationContextRunner().withBean(ManagementServerProperties.class)
 			.run((parent) -> new WebApplicationContextRunner().withParent(parent)
 				.withUserConfiguration(ServletManagementChildContextConfiguration.class)
-				.run((context) -> assertThat(context).hasNotFailed()));
+				.run((context) -> assertThat(context.getBean(ManagementServerProperties.class))
+					.isSameAs(parent.getBean(ManagementServerProperties.class))));
 	}
 
 }