Polish boolean members that can use the default `false` value

buildSrc/src/main/java/org/springframework/boot/build/bom/BomExtension.java

@@ -186,7 +186,7 @@ public class BomExtension {
 
 		private final AlignWithHandler alignWith;
 
-		private boolean considerSnapshots = false;
+		private boolean considerSnapshots;
 
 		private String version;
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/liquibase/LiquibaseEndpointAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 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.
@@ -87,7 +87,7 @@ class LiquibaseEndpointAutoConfigurationTests {
 		SpringLiquibase liquibase() {
 			return new DataSourceClosingSpringLiquibase() {
 
-				private boolean propertiesSet = false;
+				private boolean propertiesSet;
 
 				@Override
 				public void setCloseDataSourceOnceMigrated(boolean closeDataSourceOnceMigrated) {

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/jms/JmsHealthIndicatorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 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.
@@ -117,7 +117,7 @@ class JmsHealthIndicatorTests {
 
 	private static final class UnresponsiveStartAnswer implements Answer<Void> {
 
-		private boolean connectionClosed = false;
+		private boolean connectionClosed;
 
 		private final Object monitor = new Object();
 

spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/Restarter.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.
@@ -116,7 +116,7 @@ public class Restarter {
 
 	private final UncaughtExceptionHandler exceptionHandler;
 
-	private boolean finished = false;
+	private boolean finished;
 
 	private final List<ConfigurableApplicationContext> rootContexts = new CopyOnWriteArrayList<>();
 

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/runner/AbstractApplicationContextRunner.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.
@@ -472,9 +472,9 @@ public abstract class AbstractApplicationContextRunner<SELF extends AbstractAppl
 
 		private final Supplier<C> contextFactory;
 
-		private boolean allowBeanDefinitionOverriding = false;
+		private boolean allowBeanDefinitionOverriding;
 
-		private boolean allowCircularReferences = false;
+		private boolean allowCircularReferences;
 
 		private List<ApplicationContextInitializer<? super C>> initializers = Collections.emptyList();
 

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/client/MockServerRestClientCustomizer.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.
@@ -68,7 +68,7 @@ public class MockServerRestClientCustomizer implements RestClientCustomizer {
 
 	private final Supplier<? extends RequestExpectationManager> expectationManagerSupplier;
 
-	private boolean bufferContent = false;
+	private boolean bufferContent;
 
 	public MockServerRestClientCustomizer() {
 		this(SimpleRequestExpectationManager::new);

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/client/MockServerRestTemplateCustomizer.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.
@@ -70,7 +70,7 @@ public class MockServerRestTemplateCustomizer implements RestTemplateCustomizer
 
 	private boolean detectRootUri = true;
 
-	private boolean bufferContent = false;
+	private boolean bufferContent;
 
 	public MockServerRestTemplateCustomizer() {
 		this(SimpleRequestExpectationManager::new);

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/build/Phase.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2022 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.
@@ -39,7 +39,7 @@ class Phase {
 
 	private final boolean verboseLogging;
 
-	private boolean daemonAccess = false;
+	private boolean daemonAccess;
 
 	private final List<String> args = new ArrayList<>();
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-test-support/src/main/java/org/springframework/boot/testsupport/gradle/testkit/GradleBuild.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.
@@ -67,7 +67,7 @@ public class GradleBuild {
 
 	private final List<String> expectedDeprecationMessages = new ArrayList<>();
 
-	private boolean configurationCache = false;
+	private boolean configurationCache;
 
 	private final Map<String, String> scriptProperties = new HashMap<>();
 

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/AbstractRunMojo.java

@@ -87,7 +87,7 @@ public abstract class AbstractRunMojo extends AbstractDependencyFilterMojo {
 	 * @since 1.0.0
 	 */
 	@Parameter(property = "spring-boot.run.addResources", defaultValue = "false")
-	private boolean addResources = false;
+	private boolean addResources;
 
 	/**
 	 * Path to agent jars.
@@ -101,7 +101,7 @@ public abstract class AbstractRunMojo extends AbstractDependencyFilterMojo {
 	 * @since 1.0.0
 	 */
 	@Parameter(property = "spring-boot.run.noverify")
-	private boolean noverify = false;
+	private boolean noverify;
 
 	/**
 	 * Current working directory to use for the application. If not specified, basedir

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -248,9 +248,9 @@ public class SpringApplication {
 
 	private boolean allowCircularReferences;
 
-	private boolean isCustomEnvironment = false;
+	private boolean isCustomEnvironment;
 
-	private boolean lazyInitialization = false;
+	private boolean lazyInitialization;
 
 	private String environmentPrefix;
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/admin/SpringApplicationAdminMXBeanRegistrar.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.
@@ -61,9 +61,9 @@ public class SpringApplicationAdminMXBeanRegistrar implements ApplicationContext
 
 	private final ObjectName objectName;
 
-	private boolean ready = false;
+	private boolean ready;
 
-	private boolean embeddedWebApplication = false;
+	private boolean embeddedWebApplication;
 
 	public SpringApplicationAdminMXBeanRegistrar(String name) throws MalformedObjectNameException {
 		this.objectName = new ObjectName(name);

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/builder/SpringApplicationBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 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.
@@ -92,7 +92,7 @@ public class SpringApplicationBuilder {
 
 	private boolean registerShutdownHookApplied;
 
-	private boolean configuredAsChild = false;
+	private boolean configuredAsChild;
 
 	public SpringApplicationBuilder(Class<?>... sources) {
 		this(null, sources);

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/sql/init/AbstractScriptDatabaseInitializer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 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.
@@ -188,7 +188,7 @@ public abstract class AbstractScriptDatabaseInitializer implements ResourceLoade
 
 		private final List<Resource> resources;
 
-		private boolean continueOnError = false;
+		private boolean continueOnError;
 
 		private String separator = ";";
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/sql/init/DatabaseInitializationSettings.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 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.
@@ -31,7 +31,7 @@ public class DatabaseInitializationSettings {
 
 	private List<String> dataLocations;
 
-	private boolean continueOnError = false;
+	private boolean continueOnError;
 
 	private String separator = ";";
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowServletWebServerFactory.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.
@@ -104,7 +104,7 @@ public class UndertowServletWebServerFactory extends AbstractServletWebServerFac
 
 	private boolean eagerFilterInit = true;
 
-	private boolean preservePathOnForward = false;
+	private boolean preservePathOnForward;
 
 	/**
 	 * Create a new {@link UndertowServletWebServerFactory} instance.

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowWebServerFactoryDelegate.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.
@@ -69,7 +69,7 @@ class UndertowWebServerFactoryDelegate {
 
 	private String accessLogSuffix;
 
-	private boolean accessLogEnabled = false;
+	private boolean accessLogEnabled;
 
 	private boolean accessLogRotate = true;
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/Compression.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 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.
@@ -28,7 +28,7 @@ import org.springframework.util.unit.DataSize;
  */
 public class Compression {
 
-	private boolean enabled = false;
+	private boolean enabled;
 
 	private String[] mimeTypes = new String[] { "text/html", "text/xml", "text/plain", "text/css", "text/javascript",
 			"application/javascript", "application/json", "application/xml" };

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/Http2.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 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.
@@ -24,7 +24,7 @@ package org.springframework.boot.web.server;
  */
 public class Http2 {
 
-	private boolean enabled = false;
+	private boolean enabled;
 
 	/**
 	 * Return whether to enable HTTP/2 support, if the current environment supports it.

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/AbstractFilterRegistrationBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 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.
@@ -55,7 +55,7 @@ public abstract class AbstractFilterRegistrationBean<T extends Filter> extends D
 
 	private EnumSet<DispatcherType> dispatcherTypes;
 
-	private boolean matchAfter = false;
+	private boolean matchAfter;
 
 	/**
 	 * Create a new instance to be registered with the specified

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/server/AbstractServletWebServerFactory.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.
@@ -68,7 +68,7 @@ public abstract class AbstractServletWebServerFactory extends AbstractConfigurab
 
 	private Session session = new Session();
 
-	private boolean registerDefaultServlet = false;
+	private boolean registerDefaultServlet;
 
 	private MimeMappings mimeMappings = MimeMappings.lazyCopy(MimeMappings.DEFAULT);
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/support/ErrorPageFilter.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.
@@ -314,7 +314,7 @@ public class ErrorPageFilter implements Filter, ErrorPageRegistry, Ordered {
 
 		private String message;
 
-		private boolean hasErrorToSend = false;
+		private boolean hasErrorToSend;
 
 		ErrorWrapperResponse(HttpServletResponse response) {
 			super(response);

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/logging/LoggingApplicationListenerTests.java

@@ -691,7 +691,7 @@ class LoggingApplicationListenerTests {
 
 	static final class TestCleanupLoggingSystem extends LoggingSystem {
 
-		private boolean cleanedUp = false;
+		private boolean cleanedUp;
 
 		TestCleanupLoggingSystem(ClassLoader classLoader) {
 		}