Consistently use double quotes (even if no interpolation needed)

build.gradle

@@ -20,20 +20,20 @@ plugins {
 }
 
 buildScan {
-	licenseAgreementUrl = 'https://gradle.com/terms-of-service'
-	licenseAgree = 'yes'
+	licenseAgreementUrl = "https://gradle.com/terms-of-service"
+	licenseAgree = "yes"
 }
 
 ext {
-	linkHomepage = 'https://projects.spring.io/spring-framework'
-	linkCi = 'https://build.spring.io/browse/SPR'
-	linkIssue = 'https://jira.spring.io/browse/SPR'
-	linkScmUrl = 'https://github.com/spring-projects/spring-framework'
-	linkScmConnection = 'scm:git:git://github.com/spring-projects/spring-framework.git'
-	linkScmDevConnection = 'scm:git:ssh://git@github.com:spring-projects/spring-framework.git'
+	linkHomepage = "https://projects.spring.io/spring-framework"
+	linkCi = "https://build.spring.io/browse/SPR"
+	linkIssue = "https://jira.spring.io/browse/SPR"
+	linkScmUrl = "https://github.com/spring-projects/spring-framework"
+	linkScmConnection = "scm:git:git://github.com/spring-projects/spring-framework.git"
+	linkScmDevConnection = "scm:git:ssh://git@github.com:spring-projects/spring-framework.git"
 
 	moduleProjects = subprojects.findAll {
-		!it.name.equals('spring-build-src') && !it.name.equals('spring-framework-bom')
+		!it.name.equals("spring-build-src") && !it.name.equals("spring-framework-bom")
 	}
 
 	aspectjVersion       = "1.8.13"
@@ -67,15 +67,16 @@ configure(allprojects) { project ->
 	group = "org.springframework"
 	version = qualifyVersionIfNecessary(version)
 
-	apply plugin: "propdeps"
 	apply plugin: "java"
+	apply plugin: "kotlin"
+	apply plugin: "propdeps"
 	apply plugin: "test-source-set-dependencies"
 	apply plugin: "io.spring.dependency-management"
 	apply from: "${gradleScriptDir}/ide.gradle"
 
 	dependencyManagement {
 		resolutionStrategy {
-			cacheChangingModulesFor 0, 'seconds'
+			cacheChangingModulesFor 0, "seconds"
 		}
 		applyMavenExclusions = false
 		generatedPomCustomization {
@@ -83,33 +84,16 @@ configure(allprojects) { project ->
 		}
 	}
 
-	apply plugin: "kotlin"
-	compileKotlin {
-		kotlinOptions {
-			jvmTarget = "1.8"
-			freeCompilerArgs = ["-Xjsr305=strict"]
-			apiVersion = "1.1"
-			languageVersion = "1.1"
-		}
-	}
-	compileTestKotlin {
-		kotlinOptions {
-			jvmTarget = "1.8"
-			freeCompilerArgs = ["-Xjsr305=strict"]
-		}
-	}
-
 	configurations.all {
 		// Check for updates every build
-		resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
+		resolutionStrategy.cacheChangingModulesFor 0, "seconds"
 
 		// Consistent slf4j version (e.g. clashes between slf4j versions)
 		resolutionStrategy.eachDependency { DependencyResolveDetails details ->
-			if (details.requested.group == 'org.slf4j') {
+			if (details.requested.group == "org.slf4j") {
 				details.useVersion slf4jVersion
 			}
 		}
-
 	}
 
 	def commonCompilerArgs =
@@ -122,22 +106,38 @@ configure(allprojects) { project ->
 			 "-Xlint:deprecation", "-Xlint:unchecked", "-Werror"]
 
 	compileTestJava.options*.compilerArgs = commonCompilerArgs +
-			["-Xlint:-varargs", "-Xlint:-fallthrough","-Xlint:-rawtypes",
+			["-Xlint:-varargs", "-Xlint:-fallthrough", "-Xlint:-rawtypes",
 			 "-Xlint:-deprecation", "-Xlint:-unchecked"]
 
 	compileJava {
 		sourceCompatibility = 1.8  // can be switched to 10 for testing
 		targetCompatibility = 1.8
-		options.encoding = 'UTF-8'
+		options.encoding = "UTF-8"
 	}
 
 	compileTestJava {
 		sourceCompatibility = 1.8  // can be switched to 10 for testing
 		targetCompatibility = 1.8
-		options.encoding = 'UTF-8'
+		options.encoding = "UTF-8"
 		options.compilerArgs += "-parameters"
 	}
 
+	compileKotlin {
+		kotlinOptions {
+			jvmTarget = "1.8"
+			freeCompilerArgs = ["-Xjsr305=strict"]
+			apiVersion = "1.1"
+			languageVersion = "1.1"
+		}
+	}
+
+	compileTestKotlin {
+		kotlinOptions {
+			jvmTarget = "1.8"
+			freeCompilerArgs = ["-Xjsr305=strict"]
+		}
+	}
+
 	test {
 		systemProperty("java.awt.headless", "true")
 		systemProperty("testGroups", project.properties.get("testGroups"))
@@ -156,15 +156,15 @@ configure(allprojects) { project ->
 
 	dependencies {
 		testCompile("junit:junit:4.12") {
-			exclude group:'org.hamcrest', module:'hamcrest-core'
+			exclude group: "org.hamcrest", module: "hamcrest-core"
 		}
 		testCompile("org.mockito:mockito-core:2.19.1") {
-			exclude group:'org.hamcrest', module:'hamcrest-core'
+			exclude group: "org.hamcrest", module: "hamcrest-core"
 		}
 		testCompile("com.nhaarman:mockito-kotlin:1.6.0") {
-			exclude module:'kotlin-stdlib'
-			exclude module:'kotlin-reflect'
-			exclude module:'mockito-core'
+			exclude module: "kotlin-stdlib"
+			exclude module: "kotlin-reflect"
+			exclude module: "mockito-core"
 		}
 		testCompile("org.hamcrest:hamcrest-all:1.3")
 		testRuntime("org.apache.logging.log4j:log4j-core:${log4jVersion}")
@@ -221,7 +221,7 @@ configure(subprojects - project(":spring-build-src")) { subproject ->
 		options.header = project.name
 		options.use = true
 		options.links(project.ext.javadocLinks)
-		options.addStringOption('Xdoclint:none', '-quiet')
+		options.addStringOption("Xdoclint:none", "-quiet")
 
 		// Suppress warnings due to cross-module @see and @link references.
 		// Note that global 'api' task does display all warnings.
@@ -231,7 +231,7 @@ configure(subprojects - project(":spring-build-src")) { subproject ->
 
 	task sourcesJar(type: Jar, dependsOn: classes) {
 		duplicatesStrategy = DuplicatesStrategy.EXCLUDE
-		classifier = 'sources'
+		classifier = "sources"
 		from sourceSets.main.allSource
 		// Don't include or exclude anything explicitly by default. See SPR-12085.
 	}
@@ -260,7 +260,7 @@ configure(rootProject) {
 		}
 	}
 
-	// don't publish the default jar for the root project
+	// Don't publish the default jar for the root project
 	configurations.archives.artifacts.clear()
 
 	dependencies {  // for integration tests
@@ -290,7 +290,7 @@ configure(rootProject) {
 
 	task wrapper(type: Wrapper) {
 		description = "Generates gradlew[.bat] scripts"
-		gradleVersion = '4.4.1'
+		gradleVersion = "4.4.1"
 
 		doLast() {
 			def gradleOpts = "-XX:MaxMetaspaceSize=1024m -Xmx1024m"
@@ -303,7 +303,6 @@ configure(rootProject) {
 					"set GRADLE_OPTS=$gradleBatOpts %GRADLE_OPTS%\nset DEFAULT_JVM_OPTS=")
 		}
 	}
-
 }
 
 /*
@@ -317,7 +316,7 @@ def qualifyVersionIfNecessary(version) {
 	if (rootProject.hasProperty("BRANCH_NAME")) {
 		def qualifier = rootProject.getProperty("BRANCH_NAME")
 		if (qualifier.startsWith("SPR-")) {
-			return version.replace('BUILD', qualifier)
+			return version.replace("BUILD", qualifier)
 		}
 	}
 	return version

settings.gradle

@@ -25,7 +25,7 @@ include "spring-framework-bom"
 include "buildSrc"
 rootProject.children.find{ it.name == "buildSrc" }.name = "spring-build-src"
 
-rootProject.name = 'spring'
+rootProject.name = "spring"
 rootProject.children.each {project ->
 	project.buildFileName = "${project.name}.gradle"
 }

spring-aop/spring-aop.gradle

@@ -2,7 +2,7 @@ description = "Spring AOP"
 
 dependencies {
 	compile(project(":spring-beans"))
-	compile(project(':spring-core'))
+	compile(project(":spring-core"))
 	optional("org.aspectj:aspectjweaver:${aspectjVersion}")
 	optional("org.apache.commons:commons-pool2:2.5.0")
 	optional("com.jamonapi:jamon:2.81")

spring-beans/spring-beans.gradle

@@ -3,7 +3,7 @@ description = "Spring Beans"
 apply plugin: "groovy"
 
 dependencies {
-	compile(project(':spring-core'))
+	compile(project(":spring-core"))
 	optional("javax.inject:javax.inject:1")
 	optional("org.yaml:snakeyaml:1.20")
     optional("org.codehaus.groovy:groovy-all:${groovyVersion}")
@@ -25,6 +25,6 @@ compileGroovy {
 
 // This module also builds Kotlin code and the compileKotlin task naturally depends on
 // compileJava. We need to redefine dependencies to break task cycles.
-compileGroovy.dependsOn = compileGroovy.taskDependencies.values - 'compileJava'
+compileGroovy.dependsOn = compileGroovy.taskDependencies.values - "compileJava"
 compileKotlin.dependsOn(compileGroovy)
 compileKotlin.classpath += files(compileGroovy.destinationDir)

spring-context/spring-context.gradle

@@ -5,7 +5,7 @@ apply plugin: "groovy"
 dependencies {
 	compile(project(":spring-aop"))
 	compile(project(":spring-beans"))
-	compile(project(':spring-core'))
+	compile(project(":spring-core"))
 	compile(project(":spring-expression"))
 	optional(project(":spring-instrument"))
 	optional("javax.annotation:javax.annotation-api:1.3.2")

spring-oxm/spring-oxm.gradle

@@ -10,11 +10,11 @@ dependencies {
 	castor "org.codehaus.castor:castor-anttasks:1.4.1"
 	jibx "org.jibx:jibx-bind:1.3.1"
 	jibx "org.apache.bcel:bcel:6.0"
-	xjc 'javax.xml.bind:jaxb-api:2.3.0'
-	xjc 'com.sun.xml.bind:jaxb-core:2.3.0'
-	xjc 'com.sun.xml.bind:jaxb-impl:2.3.0'
-	xjc 'com.sun.xml.bind:jaxb-xjc:2.2.11'  // 2.3.0 breaks with "xjc failed"
-	xjc 'com.sun.activation:javax.activation:1.2.0'
+	xjc "javax.xml.bind:jaxb-api:2.3.0"
+	xjc "com.sun.xml.bind:jaxb-core:2.3.0"
+	xjc "com.sun.xml.bind:jaxb-impl:2.3.0"
+	xjc "com.sun.xml.bind:jaxb-xjc:2.2.11"  // 2.3.0 breaks with "xjc failed"
+	xjc "com.sun.activation:javax.activation:1.2.0"
 }
 
 ext.genSourcesDir = "${buildDir}/generated-sources"
@@ -101,19 +101,19 @@ dependencies {
 	optional("javax.xml.bind:jaxb-api:2.3.0")
 	optional("javax.activation:activation:1.1.1")
 	optional("org.codehaus.castor:castor-xml:1.4.1")  {
-		exclude group: 'stax', module: 'stax-api'
+		exclude group: "stax", module: "stax-api"
 		exclude group: "org.springframework", module: "spring-context"
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	optional("com.thoughtworks.xstream:xstream:1.4.10") {
-		exclude group: 'xpp3', module: 'xpp3_min'
-		exclude group: 'xmlpull', module: 'xmlpull'
+		exclude group: "xpp3", module: "xpp3_min"
+		exclude group: "xmlpull", module: "xmlpull"
 	}
 	optional("org.jibx:jibx-run:1.3.1")
 	testCompile(project(":spring-context"))
 	testCompile("org.ogce:xpp3:1.1.6")
 	testCompile("org.codehaus.jettison:jettison:1.3.8") {
-		exclude group: 'stax', module: 'stax-api'
+		exclude group: "stax", module: "stax-api"
 	}
 	testCompile(files(genCastor.classesDir).builtBy(genCastor))
 	testCompile(files(genJaxb.classesDir).builtBy(genJaxb))

spring-test/spring-test.gradle

@@ -74,8 +74,8 @@ dependencies {
 	testCompile("org.apache.httpcomponents:httpclient:4.5.5") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
-	testCompile('io.projectreactor.ipc:reactor-netty')
-	testCompile('de.bechte.junit:junit-hierarchicalcontextrunner:4.12.1')
+	testCompile("io.projectreactor.ipc:reactor-netty")
+	testCompile("de.bechte.junit:junit-hierarchicalcontextrunner:4.12.1")
 	// Pull in the latest JUnit 5 Launcher API and the Vintage engine as well
 	// so that we can run JUnit 4 tests in IntelliJ IDEA.
 	testRuntime("org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}")
@@ -87,7 +87,7 @@ dependencies {
 }
 
 task testNG(type: Test) {
-	description = 'Runs TestNG tests.'
+	description = "Runs TestNG tests."
 	useTestNG()
 	scanForTestClasses = false
 	include(["**/testng/**/*Tests.class", "**/testng/**/*Test.class"])
@@ -98,19 +98,19 @@ task testNG(type: Test) {
 }
 
 test {
-	description = 'Runs JUnit tests.'
+	description = "Runs JUnit tests."
 	dependsOn testNG
 	useJUnit()
 	scanForTestClasses = false
-	include(['**/*Tests.class', '**/*Test.class', '**/SpringJUnitJupiterTestSuite.class'])
-	exclude(['**/testng/**/*.*'])
+	include(["**/*Tests.class", "**/*Test.class", "**/SpringJUnitJupiterTestSuite.class"])
+	exclude(["**/testng/**/*.*"])
 	// Java Util Logging for JUnit 5.
-	// systemProperty('java.util.logging.manager', 'org.apache.logging.log4j.jul.LogManager')
+	// systemProperty("java.util.logging.manager", "org.apache.logging.log4j.jul.LogManager")
 	reports.junitXml.destination = file("$buildDir/test-results")
 }
 
 task aggregateTestReports(type: TestReport) {
-	description = 'Aggregates JUnit and TestNG test reports.'
+	description = "Aggregates JUnit and TestNG test reports."
 	destinationDir = test.reports.html.destination
 	reportOn test, testNG
 }

spring-webmvc/spring-webmvc.gradle

@@ -11,7 +11,7 @@ dependencies {
 	compile(project(":spring-aop"))
 	compile(project(":spring-beans"))
 	compile(project(":spring-context"))
-	compile(project(':spring-core'))
+	compile(project(":spring-core"))
 	compile(project(":spring-expression"))
 	compile(project(":spring-web"))
 	optional(project(":spring-context-support"))  // for FreeMarker support
@@ -20,7 +20,7 @@ dependencies {
 	optional("javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:1.2.1")
 	optional("javax.el:javax.el-api:3.0.1-b04")
 	optional("javax.xml.bind:jaxb-api:2.3.0")
-	optional('org.webjars:webjars-locator-core:0.35')
+	optional("org.webjars:webjars-locator-core:0.35")
 	optional("com.rometools:rome:1.9.0")
 	optional("com.github.librepdf:openpdf:1.0.5")
 	optional("org.apache.poi:poi-ooxml:3.17")