diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurer.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurer.java
index a0f1a0d10b..b5e992f7be 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurer.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryConfigurer.java
@@ -25,13 +25,12 @@ import io.micrometer.core.instrument.binder.MeterBinder;
 import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
 import io.micrometer.core.instrument.config.MeterFilter;
 
-import org.springframework.beans.factory.config.BeanPostProcessor;
 import org.springframework.boot.util.LambdaSafe;
 
 /**
- * {@link BeanPostProcessor} to apply {@link MeterRegistryCustomizer customizers},
+ * Configurer to apply {@link MeterRegistryCustomizer customizers},
  * {@link MeterFilter filters}, {@link MeterBinder binders} and {@link Metrics#addRegistry
- * global registration} to {@link MeterRegistry meter registries}. This post processor
+ * global registration} to {@link MeterRegistry meter registries}. This configurer
  * intentionally skips {@link CompositeMeterRegistry} with the assumptions that the
  * registries it contains are beans and will be customized directly.
  *
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/web/reactive/WebFluxMetricsAutoConfiguration.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/web/reactive/WebFluxMetricsAutoConfiguration.java
index 4d80d9fa1f..6f619440d9 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/web/reactive/WebFluxMetricsAutoConfiguration.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/web/reactive/WebFluxMetricsAutoConfiguration.java
@@ -34,7 +34,7 @@ import org.springframework.context.annotation.Configuration;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for instrumentation of Spring
- * Webflux MVC annotation-based programming model request mappings.
+ * WebFlux MVC annotation-based programming model request mappings.
  *
  * @author Jon Schneider
  * @since 2.0.0
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryCustomizerTests.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryCustomizerTests.java
index 4aebdd4f15..f28198c46b 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryCustomizerTests.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryCustomizerTests.java
@@ -85,7 +85,7 @@ public class MeterRegistryCustomizerTests {
 		}
 
 		@Bean
-		public MeterRegistryCustomizer<PrometheusMeterRegistry> prometehusOnlyCommonTags() {
+		public MeterRegistryCustomizer<PrometheusMeterRegistry> prometheusOnlyCommonTags() {
 			return (registry) -> registry.config().commonTags("job", "myjob");
 		}
 
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/newrelic/NewRelicMetricsExportAutoConfigurationTests.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/newrelic/NewRelicMetricsExportAutoConfigurationTests.java
index db8f944c73..d2b915d897 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/newrelic/NewRelicMetricsExportAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/newrelic/NewRelicMetricsExportAutoConfigurationTests.java
@@ -80,9 +80,7 @@ public class NewRelicMetricsExportAutoConfigurationTests {
 	@Test
 	public void autoConfigurationCanBeDisabled() {
 		this.contextRunner.withUserConfiguration(BaseConfiguration.class)
-				.withPropertyValues("management.metrics.export.newrelic.enabled=false",
-						"management.metrics.export.newrelic.api-key=abcde",
-						"management.metrics.export.newrelic.account-id=12345")
+				.withPropertyValues("management.metrics.export.newrelic.enabled=false")
 				.run((context) -> assertThat(context)
 						.doesNotHaveBean(NewRelicMeterRegistry.class)
 						.doesNotHaveBean(NewRelicConfig.class));
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/signalfx/SignalFxMetricsExportAutoConfigurationTests.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/signalfx/SignalFxMetricsExportAutoConfigurationTests.java
index e2ff14fd76..a998f25483 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/signalfx/SignalFxMetricsExportAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/signalfx/SignalFxMetricsExportAutoConfigurationTests.java
@@ -72,7 +72,6 @@ public class SignalFxMetricsExportAutoConfigurationTests {
 	public void autoConfigurationCanBeDisabled() {
 		this.contextRunner.withUserConfiguration(BaseConfiguration.class)
 				.withPropertyValues(
-						"management.metrics.export.signalfx.access-token=abcde",
 						"management.metrics.export.signalfx.enabled=false")
 				.run((context) -> assertThat(context)
 						.doesNotHaveBean(SignalFxMeterRegistry.class)
diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/AbstractHealthIndicator.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/AbstractHealthIndicator.java
index d951e3497b..585d432b46 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/AbstractHealthIndicator.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/AbstractHealthIndicator.java
@@ -50,7 +50,7 @@ public abstract class AbstractHealthIndicator implements HealthIndicator {
 	 * Create a new {@link AbstractHealthIndicator} instance with a default
 	 * {@code healthCheckFailedMessage}.
 	 */
-	public AbstractHealthIndicator() {
+	protected AbstractHealthIndicator() {
 		this(NO_MESSAGE);
 	}
 
diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/MetricsWebFilter.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/MetricsWebFilter.java
index a158f4205b..fad2e70347 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/MetricsWebFilter.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/MetricsWebFilter.java
@@ -30,7 +30,7 @@ import org.springframework.web.server.WebFilter;
 import org.springframework.web.server.WebFilterChain;
 
 /**
- * Intercepts incoming HTTP requests modeled with the Webflux annotation-based programming
+ * Intercepts incoming HTTP requests modeled with the WebFlux annotation-based programming
  * model.
  *
  * @author Jon Schneider
diff --git a/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc b/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
index 12633f9281..544205c053 100644
--- a/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
+++ b/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
@@ -551,7 +551,7 @@ JMX or an HTTP request is converted to the required types using an instance of
 
 [[production-ready-endpoints-custom-web]]
 ==== Custom Web Endpoints
-Operations on a `@Endpoint`, `@WebEndpoint`, or `@WebEndpointExtension` are automatically
+Operations on an `@Endpoint`, `@WebEndpoint`, or `@WebEndpointExtension` are automatically
 exposed over HTTP using Jersey, Spring MVC, or Spring WebFlux.
 
 
@@ -673,7 +673,7 @@ possible.
 ==== Controller endpoints
 `@ControllerEndpoint` and `@RestControllerEndpoint` can be used to implement an endpoint
 that is only exposed by Spring MVC or Spring WebFlux. Methods are mapped using the
-standard annotations Spring MVC and Spring WebFlux annotations such as `@RequestMapping`
+standard annotations for Spring MVC and Spring WebFlux such as `@RequestMapping`
 and `@GetMapping`, with the endpoint's ID being used as a prefix for the path. Controller
 endpoints provide deeper integration with Spring's web frameworks but at the expense of
 portability. The `@Endpoint` and `@WebEndpoint` annotations should be preferred whenever
@@ -1763,7 +1763,7 @@ is required. A `CacheMetricsRegistrar` bean is made available to make that proce
 
 [[production-ready-metrics-jdbc]]
 ==== DataSource Metrics
-Auto-configuration enables the instrumentation of all available DataSource` objects with a
+Auto-configuration enables the instrumentation of all available `DataSource` objects with a
 metric named `jdbc`. Data source instrumentation results in gauges representing the
 currently active, maximum allowed, and minimum allowed connections in the pool. Each of
 these gauges has a name that is prefixed by `jdbc`.
diff --git a/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/web/security/CustomWebFluxSecurityExample.java b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/web/security/CustomWebFluxSecurityExample.java
index 852c54bbb7..7ee3ac5ee0 100644
--- a/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/web/security/CustomWebFluxSecurityExample.java
+++ b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/web/security/CustomWebFluxSecurityExample.java
@@ -18,7 +18,6 @@ package org.springframework.boot.docs.web.security;
 
 import org.springframework.boot.autoconfigure.security.reactive.PathRequest;
 import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
 import org.springframework.security.config.web.server.ServerHttpSecurity;
 import org.springframework.security.web.server.SecurityWebFilterChain;
 
@@ -27,20 +26,19 @@ import org.springframework.security.web.server.SecurityWebFilterChain;
  *
  * @author Madhura Bhave
  */
-@EnableWebFluxSecurity
 public class CustomWebFluxSecurityExample {
 
 	// @formatter:off
 	// tag::configuration[]
 	@Bean
 	public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
-		http
+		return http
 			.authorizeExchange()
 				.matchers(PathRequest.toStaticResources().atCommonLocations()).permitAll()
 				.pathMatchers("/foo", "/bar")
 					.authenticated().and()
-				.formLogin();
-		return http.build();
+				.formLogin().and()
+			.build();
 	}
 	// end::configuration[]
 	// @formatter:on
diff --git a/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/reactive/webclient/WebTestClientSpringBootTestIntegrationTests.java b/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/reactive/webclient/WebTestClientSpringBootTestIntegrationTests.java
index d2696e3f75..dd3684589f 100644
--- a/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/reactive/webclient/WebTestClientSpringBootTestIntegrationTests.java
+++ b/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/reactive/webclient/WebTestClientSpringBootTestIntegrationTests.java
@@ -74,8 +74,7 @@ public class WebTestClientSpringBootTestIntegrationTests {
 
 		@Bean
 		public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
-			http.authorizeExchange().anyExchange().permitAll();
-			return http.build();
+			return http.authorizeExchange().anyExchange().permitAll().and().build();
 		}
 
 	}
diff --git a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/ApplicationContextAssert.java b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/ApplicationContextAssert.java
index 7105917486..92f51b045b 100644
--- a/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/ApplicationContextAssert.java
+++ b/spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/assertj/ApplicationContextAssert.java
@@ -110,7 +110,7 @@ public class ApplicationContextAssert<C extends ApplicationContext>
 	 * Verifies that the application context contains a single bean with the given type.
 	 * <p>
 	 * Example: <pre class="code">
-	 * assertThat(context).hasSingleBean(Foo.class); </pre>
+	 * assertThat(context).hasSingleBean(Foo.class, Scope.NO_ANCESTORS); </pre>
 	 * @param type the bean type
 	 * @param scope the scope of the assertion
 	 * @return {@code this} assertion object.
@@ -159,7 +159,7 @@ public class ApplicationContextAssert<C extends ApplicationContext>
 	 * Verifies that the application context does not contain any beans of the given type.
 	 * <p>
 	 * Example: <pre class="code">
-	 * assertThat(context).doesNotHaveBean(Foo.class); </pre>
+	 * assertThat(context).doesNotHaveBean(Foo.class, Scope.NO_ANCESTORS); </pre>
 	 * @param type the bean type
 	 * @param scope the scope of the assertion
 	 * @return {@code this} assertion object.
@@ -255,8 +255,8 @@ public class ApplicationContextAssert<C extends ApplicationContext>
 	 * assert on {@code null} is returned.
 	 * <p>
 	 * Example: <pre class="code">
-	 * assertThat(context).getBean(Foo.class).isInstanceOf(DefaultFoo.class);
-	 * assertThat(context).getBean(Bar.class).isNull();</pre>
+	 * assertThat(context).getBean(Foo.class, Scope.NO_ANCESTORS).isInstanceOf(DefaultFoo.class);
+	 * assertThat(context).getBean(Bar.class, Scope.NO_ANCESTORS).isNull();</pre>
 	 * @param <T> the bean type
 	 * @param type the bean type
 	 * @param scope the scope of the assertion
@@ -374,7 +374,7 @@ public class ApplicationContextAssert<C extends ApplicationContext>
 	 * can be found an assert on an empty {@code map} is returned.
 	 * <p>
 	 * Example: <pre class="code">
-	 * assertThat(context).getBeans(Foo.class).containsKey("foo");
+	 * assertThat(context).getBeans(Foo.class, Scope.NO_ANCESTORS).containsKey("foo");
 	 * </pre>
 	 * @param <T> the bean type
 	 * @param type the bean type
diff --git a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/web/client/TestRestTemplateTests.java b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/web/client/TestRestTemplateTests.java
index 74e915230d..a1c177ae6d 100644
--- a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/web/client/TestRestTemplateTests.java
+++ b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/web/client/TestRestTemplateTests.java
@@ -142,7 +142,7 @@ public class TestRestTemplateTests {
 				.willReturn(new DefaultUriBuilderFactory());
 		RestTemplateBuilder builder = mock(RestTemplateBuilder.class);
 		given(builder.build()).willReturn(delegate);
-		final TestRestTemplate restTemplate = new TestRestTemplate(builder);
+		TestRestTemplate restTemplate = new TestRestTemplate(builder);
 		ReflectionUtils.doWithMethods(RestOperations.class, new MethodCallback() {
 
 			@Override
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java
index 1feaaaf079..9466f99fee 100644
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java
+++ b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java
@@ -60,7 +60,6 @@ public class ConfigurationPropertySourcesTests {
 	public void attachShouldReAttachInMergedSetup() {
 		ConfigurableEnvironment parent = new StandardEnvironment();
 		ConfigurationPropertySources.attach(parent);
-		parent.getProperty("my.example-property");
 		ConfigurableEnvironment child = new StandardEnvironment();
 		child.merge(parent);
 		child.getPropertySources().addLast(new MapPropertySource("config",
diff --git a/spring-boot-samples/README.adoc b/spring-boot-samples/README.adoc
index c2d27ec1ad..3cefc23622 100644
--- a/spring-boot-samples/README.adoc
+++ b/spring-boot-samples/README.adoc
@@ -120,7 +120,7 @@ The following sample applications are provided:
 | Demonstrates JUnit Jupiter-based testing
 
 | link:spring-boot-sample-kafka[spring-boot-sample-kafka]
-| consumer and producer using Apache Kafka
+| Consumer and producer using Apache Kafka
 
 | link:spring-boot-sample-liquibase[spring-boot-sample-liquibase]
 | Database migrations with Liquibase
diff --git a/spring-boot-samples/spring-boot-sample-kafka/src/main/resources/application.properties b/spring-boot-samples/spring-boot-sample-kafka/src/main/resources/application.properties
index 97dbed42b9..179587112b 100644
--- a/spring-boot-samples/spring-boot-sample-kafka/src/main/resources/application.properties
+++ b/spring-boot-samples/spring-boot-sample-kafka/src/main/resources/application.properties
@@ -2,5 +2,5 @@ spring.kafka.bootstrap-servers=localhost:9092
 spring.kafka.consumer.group-id=testGroup
 spring.kafka.consumer.auto-offset-reset=earliest
 spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer
-spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer
-spring.kafka.consumer.properties.spring.json.trusted.packages=sample.kafka
\ No newline at end of file
+spring.kafka.consumer.properties.spring.json.trusted.packages=sample.kafka
+spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer
\ No newline at end of file
diff --git a/spring-boot-samples/spring-boot-sample-secure-webflux/src/test/java/sample/secure/webflux/SampleSecureWebFluxCustomSecurityTests.java b/spring-boot-samples/spring-boot-sample-secure-webflux/src/test/java/sample/secure/webflux/SampleSecureWebFluxCustomSecurityTests.java
index b99971fccf..4d2796a0de 100644
--- a/spring-boot-samples/spring-boot-sample-secure-webflux/src/test/java/sample/secure/webflux/SampleSecureWebFluxCustomSecurityTests.java
+++ b/spring-boot-samples/spring-boot-sample-secure-webflux/src/test/java/sample/secure/webflux/SampleSecureWebFluxCustomSecurityTests.java
@@ -116,15 +116,14 @@ public class SampleSecureWebFluxCustomSecurityTests {
 
 		@Bean
 		public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
-			http.authorizeExchange().matchers(EndpointRequest.to("health", "info"))
+			return http.authorizeExchange().matchers(EndpointRequest.to("health", "info"))
 					.permitAll()
 					.matchers(EndpointRequest.toAnyEndpoint()
 							.excluding(MappingsEndpoint.class))
 					.hasRole("ACTUATOR")
 					.matchers(PathRequest.toStaticResources().atCommonLocations())
 					.permitAll().pathMatchers("/login").permitAll().anyExchange()
-					.authenticated().and().httpBasic();
-			return http.build();
+					.authenticated().and().httpBasic().and().build();
 		}
 
 	}