Polish

Closes gh-13320

README.adoc

@@ -223,7 +223,7 @@ This module contains core items and annotations that can be helpful when testing
 
 
 === spring-boot-test-autoconfigure
-Like other Spring Boot Auto-Configuration modules, spring-boot-test-autoconfigure, provides auto-configuration
+Like other Spring Boot auto-configuration modules, spring-boot-test-autoconfigure, provides auto-configuration
 for tests based on the classpath. It includes a number of annotations that can be used to automatically
 configure a slice of your application that needs to be tested.
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/elasticsearch/jest/JestAutoConfiguration.java

@@ -39,7 +39,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.util.Assert;
 
 /**
- * {@link EnableAutoConfiguration Auto-Configuration} for Jest.
+ * {@link EnableAutoConfiguration Auto-configuration} for Jest.
  *
  * @author Stephane Nicoll
  * @since 1.4.0

spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/Restarter.java

@@ -134,7 +134,9 @@ public class Restarter {
 		Assert.notNull(thread, "Thread must not be null");
 		Assert.notNull(args, "Args must not be null");
 		Assert.notNull(initializer, "Initializer must not be null");
-		this.logger.debug("Creating new Restarter for thread " + thread);
+		if (this.logger.isDebugEnabled()) {
+			this.logger.debug("Creating new Restarter for thread " + thread);
+		}
 		SilentExitExceptionHandler.setup(thread);
 		this.forceReferenceCleanup = forceReferenceCleanup;
 		this.initialUrls = initializer.getInitialUrls(thread);
@@ -360,7 +362,10 @@ public class Restarter {
 			clear(Class.forName(className), fieldName);
 		}
 		catch (Exception ex) {
-			this.logger.debug("Unable to clear field " + className + " " + fieldName, ex);
+			if (this.logger.isDebugEnabled()) {
+				this.logger.debug("Unable to clear field " + className + " " + fieldName,
+						ex);
+			}
 		}
 	}
 
@@ -377,15 +382,15 @@ public class Restarter {
 			}
 		}
 		catch (Exception ex) {
-			this.logger.debug("Unable to clear field " + type + " " + fieldName, ex);
+			if (this.logger.isDebugEnabled()) {
+				this.logger.debug("Unable to clear field " + type + " " + fieldName, ex);
+			}
 		}
 	}
 
 	private boolean isFromRestartClassLoader(Object object) {
-		if (object instanceof Class) {
-			return ((Class<?>) object).getClassLoader() instanceof RestartClassLoader;
-		}
-		return false;
+		return (object instanceof Class
+				&& ((Class<?>) object).getClassLoader() instanceof RestartClassLoader);
 	}
 
 	/**

spring-boot-project/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -3,7 +3,7 @@
 [[common-application-properties]]
 == Common application properties
 Various properties can be specified inside your `application.properties` file, inside
-your  `application.yml` file, or as command line switches. This appendix provides a list
+your `application.yml` file, or as command line switches. This appendix provides a list
 of common Spring Boot properties and references to the underlying classes that consume
 them.
 

spring-boot-project/spring-boot-docs/src/main/asciidoc/getting-started.adoc

@@ -662,7 +662,7 @@ that you have added. Since `spring-boot-starter-web` added Tomcat and Spring MVC
 auto-configuration assumes that you are developing a web application and sets up Spring
 accordingly.
 
-.Starters and Auto-Configuration
+.Starters and Auto-configuration
 ****
 Auto-configuration is designed to work well with "`Starters`", but the two concepts are
 not directly tied. You are free to pick and choose jar dependencies outside of the

spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -2064,7 +2064,7 @@ directory locations). The root Servlet context path, `"/"`, is automatically add
 location as well.
 
 In addition to the "`standard`" static resource locations mentioned earlier, a special
-case is made for http://www.webjars.org/[Webjars content]. Any resources with a path in
+case is made for https://www.webjars.org/[Webjars content]. Any resources with a path in
 `+/webjars/**+` are served from jar files if they are packaged in the Webjars format.
 
 TIP: Do not use the `src/main/webapp` directory if your application is packaged as a jar.
@@ -2625,7 +2625,7 @@ custom locations. So, if there is an `index.html` in any of your locations on st
 is the home page of the application.
 
 In addition to the "`standard`" static resource locations listed earlier, a special case
-is made for http://www.webjars.org/[Webjars content]. Any resources with a path in
+is made for https://www.webjars.org/[Webjars content]. Any resources with a path in
 `+/webjars/**+` are served from jar files if they are packaged in the Webjars format.
 
 TIP: Spring WebFlux applications do not strictly depend on the Servlet API, so they
@@ -7227,7 +7227,7 @@ which auto-configures one for you.
 
 
 
-[[boot-features-environment-test-utilities]]
+[[boot-features-test-property-values]]
 ==== TestPropertyValues
 `TestPropertyValues` lets you quickly add properties to a
 `ConfigurableEnvironment` or `ConfigurableApplicationContext`. You can call it with

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/StringSequence.java

@@ -99,11 +99,11 @@ final class StringSequence implements CharSequence {
 		return startsWith(prefix, 0);
 	}
 
-	public boolean startsWith(CharSequence prefix, int toffset) {
-		if (length() - prefix.length() - toffset < 0) {
+	public boolean startsWith(CharSequence prefix, int offset) {
+		if (length() - prefix.length() - offset < 0) {
 			return false;
 		}
-		return subSequence(toffset, toffset + prefix.length()).equals(prefix);
+		return subSequence(offset, offset + prefix.length()).equals(prefix);
 	}
 
 	@Override

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java

@@ -20,6 +20,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Deque;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
@@ -301,7 +302,7 @@ public class ConfigFileApplicationListener
 
 		private final List<PropertySourceLoader> propertySourceLoaders;
 
-		private LinkedList<Profile> profiles;
+		private Deque<Profile> profiles;
 
 		private List<Profile> processedProfiles;
 
@@ -345,9 +346,9 @@ public class ConfigFileApplicationListener
 			// The default profile for these purposes is represented as null. We add it
 			// first so that it is processed first and has lowest priority.
 			this.profiles.add(null);
-			Set<Profile> activatedViaProperty = getProfilesActivatedViaActiveProfileProperty();
+			Set<Profile> activatedViaProperty = getProfilesActivatedViaProperty();
 			processOtherActiveProfiles(activatedViaProperty);
-			// Any pre-existing active activeProfiles set via property sources (e.g.
+			// Any pre-existing active profiles set via property sources (e.g.
 			// System
 			// properties) take precedence over those added in config files.
 			addActiveProfiles(activatedViaProperty);
@@ -360,7 +361,7 @@ public class ConfigFileApplicationListener
 			}
 		}
 
-		private Set<Profile> getProfilesActivatedViaActiveProfileProperty() {
+		private Set<Profile> getProfilesActivatedViaProperty() {
 			if (!this.environment.containsProperty(ACTIVE_PROFILES_PROPERTY)
 					&& !this.environment.containsProperty(INCLUDE_PROFILES_PROPERTY)) {
 				return Collections.emptySet();
@@ -385,8 +386,10 @@ public class ConfigFileApplicationListener
 				return;
 			}
 			addProfiles(profiles);
-			this.logger.debug("Activated activeProfiles "
-					+ StringUtils.collectionToCommaDelimitedString(profiles));
+			if (this.logger.isDebugEnabled()) {
+				this.logger.debug("Activated activeProfiles "
+						+ StringUtils.collectionToCommaDelimitedString(profiles));
+			}
 			this.activatedProfiles = true;
 			removeUnprocessedDefaultProfiles();
 		}

spring-boot-tests/spring-boot-deployment-tests/spring-boot-deployment-test-tomcat/src/test/java/sample/SampleTomcatDeployApplicationIT.java

@@ -58,62 +58,49 @@ public class SampleTomcatDeployApplicationIT {
 	@Test
 	public void errorFromExceptionForRequestAcceptingAnythingProducesAJsonResponse()
 			throws Exception {
-		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.ALL,
+		assertThatPathProducesExpectedResponse("/bootapp/exception", MediaType.ALL,
 				MediaType.APPLICATION_JSON);
 	}
 
 	@Test
 	public void errorFromExceptionForRequestAcceptingJsonProducesAJsonResponse()
 			throws Exception {
-		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.APPLICATION_JSON,
-				MediaType.APPLICATION_JSON);
+		assertThatPathProducesExpectedResponse("/bootapp/exception",
+				MediaType.APPLICATION_JSON, MediaType.APPLICATION_JSON);
 	}
 
 	@Test
 	public void errorFromExceptionForRequestAcceptingHtmlProducesAnHtmlResponse()
 			throws Exception {
-		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.TEXT_HTML,
+		assertThatPathProducesExpectedResponse("/bootapp/exception", MediaType.TEXT_HTML,
 				MediaType.TEXT_HTML);
 	}
 
 	@Test
 	public void sendErrorForRequestAcceptingAnythingProducesAJsonResponse()
 			throws Exception {
-		assertThatSendErrorProducesExpectedResponse(MediaType.ALL,
+		assertThatPathProducesExpectedResponse("/bootapp/send-error", MediaType.ALL,
 				MediaType.APPLICATION_JSON);
 	}
 
 	@Test
 	public void sendErrorForRequestAcceptingJsonProducesAJsonResponse() throws Exception {
-		assertThatSendErrorProducesExpectedResponse(MediaType.APPLICATION_JSON,
-				MediaType.APPLICATION_JSON);
+		assertThatPathProducesExpectedResponse("/bootapp/send-error",
+				MediaType.APPLICATION_JSON, MediaType.APPLICATION_JSON);
 	}
 
 	@Test
 	public void sendErrorForRequestAcceptingHtmlProducesAnHtmlResponse()
 			throws Exception {
-		assertThatSendErrorProducesExpectedResponse(MediaType.TEXT_HTML,
+		assertThatPathProducesExpectedResponse("/bootapp/send-error", MediaType.TEXT_HTML,
 				MediaType.TEXT_HTML);
 	}
 
-	private void assertThatSendErrorProducesExpectedResponse(MediaType accept,
-			MediaType contentType) {
-		RequestEntity<Void> request = RequestEntity
-				.get(URI.create("http://localhost:" + this.port + "/bootapp/send-error"))
-				.accept(accept).build();
-		ResponseEntity<String> response = this.rest.exchange(request, String.class);
-		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
-		assertThat(contentType.isCompatibleWith(response.getHeaders().getContentType()))
-				.as("%s is compatible with %s", contentType,
-						response.getHeaders().getContentType())
-				.isTrue();
-	}
-
-	private void assertThatErrorFromExceptionProducesExpectedResponse(MediaType accept,
+	private void assertThatPathProducesExpectedResponse(String path, MediaType accept,
 			MediaType contentType) {
 		RequestEntity<Void> request = RequestEntity
-				.get(URI.create("http://localhost:" + this.port + "/bootapp/exception"))
-				.accept(accept).build();
+				.get(URI.create("http://localhost:" + this.port + path)).accept(accept)
+				.build();
 		ResponseEntity<String> response = this.rest.exchange(request, String.class);
 		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
 		assertThat(contentType.isCompatibleWith(response.getHeaders().getContentType()))