Polish "Use project.getLayout().getBuildDirectory() instead of getBuildDir()"

See gh-37167

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/build.gradle

@@ -48,7 +48,7 @@ gradlePlugin {
 }
 
 task preparePluginValidationClasses(type: Copy) {
-	destinationDir = file("$buildDir/classes/java/pluginValidation")
+	destinationDir = layout.buildDirectory.dir("classes/java/pluginValidation").get().asFile
 	from(sourceSets.main.output.classesDirs) {
 		exclude "**/CreateBootStartScripts.class"
 	}

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/buildinfo/BuildInfo.java

@@ -22,9 +22,9 @@ import java.util.HashMap;
 import java.util.Map;
 
 import org.gradle.api.Action;
-import org.gradle.api.Project;
 import org.gradle.api.Task;
 import org.gradle.api.file.DirectoryProperty;
+import org.gradle.api.file.ProjectLayout;
 import org.gradle.api.internal.ConventionTask;
 import org.gradle.api.tasks.Nested;
 import org.gradle.api.tasks.OutputDirectory;
@@ -75,7 +75,8 @@ public class BuildInfo extends ConventionTask {
 
 	/**
 	 * Returns the directory to which the {@code build-info.properties} file will be
-	 * written. Defaults to the {@link Project#getBuildDir() Project's build directory}.
+	 * written. Defaults to the {@link ProjectLayout#getBuildDirectory() Project's build
+	 * directory}.
 	 * @return the destination directory
 	 */
 	@OutputDirectory

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests-basicExecution.gradle

@@ -5,7 +5,6 @@ plugins {
 version = '0.1.0'
 
 task buildInfo(type: org.springframework.boot.gradle.tasks.buildinfo.BuildInfo) {
-	destinationDir project.buildDir
 	properties {
 		artifact = 'foo'
 		group = 'foo'

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests-removePropertiesUsingEmptyStrings.gradle

@@ -6,7 +6,6 @@ group = 'foo'
 version = '0.1.0'
 
 task buildInfo(type: org.springframework.boot.gradle.tasks.buildinfo.BuildInfo) {
-	destinationDir project.buildDir
 	properties {
 		group = ''
 		artifact = ''

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/buildinfo/BuildInfoIntegrationTests-removePropertiesUsingNulls.gradle

@@ -6,7 +6,6 @@ group = 'foo'
 version = '0.1.0'
 
 task buildInfo(type: org.springframework.boot.gradle.tasks.buildinfo.BuildInfo) {
-	destinationDir project.buildDir
 	properties {
 		group = null
 		artifact = null

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/BootJarIntegrationTests-explodedApplicationClasspath.gradle

@@ -15,7 +15,7 @@ dependencies {
 
 task explode(type: Sync) {
 	dependsOn(bootJar)
-	destinationDir = file("$buildDir/exploded")
+	destinationDir = layout.buildDirectory.dir("exploded").get().asFile
 	from zipTree(files(bootJar).singleFile)
 }
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/MavenIntegrationTests-bootJarCanBeUploaded.gradle

@@ -14,7 +14,7 @@ version = '1.0'
 uploadBootArchives {
 	repositories {
 		mavenDeployer {
-		 	repository(url: "file:${buildDir}/repo")
+		 	repository(url: "file:${layout.buildDirectory.dir("repo").get().asFile}")
 		}
 	}
 }

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/MavenIntegrationTests-bootWarCanBeUploaded.gradle

@@ -14,7 +14,7 @@ version = '1.0'
 uploadBootArchives {
 	repositories {
 		mavenDeployer {
-		 	repository(url: "file:${buildDir}/repo")
+			repository(url: "file:${layout.buildDirectory.dir("repo").get().asFile}")
 		}
 	}
 }

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/MavenPublishingIntegrationTests-bootJarCanBePublished.gradle

@@ -14,7 +14,7 @@ version = '1.0'
 publishing {
 	repositories {
 		maven {
-			url "${buildDir}/repo"
+			url = layout.buildDirectory.dir("repo")
 		}
 	}
 	publications {

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/tasks/bundling/MavenPublishingIntegrationTests-bootWarCanBePublished.gradle

@@ -14,7 +14,7 @@ version = '1.0'
 publishing {
 	repositories {
 		maven {
-			url "${buildDir}/repo"
+			url = layout.buildDirectory.dir("repo")
 		}
 	}
 	publications {