Raise the minimum supported version of Gradle to 7.4

Closes gh-29674

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

spring-boot-project/spring-boot-docs/src/docs/asciidoc/build-tool-plugins/gradle.adoc

@@ -1,7 +1,7 @@
 [[build-tool-plugins.gradle]]
 == Spring Boot Gradle Plugin
 The Spring Boot Gradle Plugin provides Spring Boot support in Gradle, letting you package executable jar or war archives, run Spring Boot applications, and use the dependency management provided by `spring-boot-dependencies`.
-It requires Gradle 7.x (7.3 or later).
+It requires Gradle 7.x (7.4 or later).
 See the plugin's documentation to learn more:
 
 * Reference ({spring-boot-gradle-plugin-docs}[HTML] and {spring-boot-gradle-plugin-pdfdocs}[PDF])

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

@@ -45,7 +45,7 @@ More details on getting started with Spring Boot and Maven can be found in the {
 
 [[getting-started.installing.java.gradle]]
 ==== Gradle Installation
-Spring Boot is compatible with Gradle 7.x (7.3 or later).
+Spring Boot is compatible with Gradle 7.x (7.4 or later).
 If you do not already have Gradle installed, you can follow the instructions at https://gradle.org.
 
 Spring Boot dependencies can be declared by using the `org.springframework.boot` `group`.

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

@@ -12,7 +12,7 @@ Explicit build support is provided for the following build tools:
 | 3.5+
 
 | Gradle
-| 7.x (7.3 or later)
+| 7.x (7.4 or later)
 |===
 
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/asciidoc/introduction.adoc

@@ -2,6 +2,6 @@
 = Introduction
 The Spring Boot Gradle Plugin provides Spring Boot support in https://gradle.org[Gradle].
 It allows you to package executable jar or war archives, run Spring Boot applications, and use the dependency management provided by `spring-boot-dependencies`.
-Spring Boot's Gradle plugin requires Gradle 7.x (7.3 or later) and can be used with Gradle's {gradle-userguide}/configuration_cache.html[configuration cache].
+Spring Boot's Gradle plugin requires Gradle 7.x (7.4 or later) and can be used with Gradle's {gradle-userguide}/configuration_cache.html[configuration cache].
 
 In addition to this user guide, {api-documentation}[API documentation] is also available.

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/JavaPluginAction.java

@@ -131,6 +131,7 @@ final class JavaPluginAction implements PluginApplicationAction {
 		});
 	}
 
+	@SuppressWarnings("deprecation")
 	private void configureArtifactPublication(TaskProvider<BootJar> bootJar) {
 		LazyPublishArtifact artifact = new LazyPublishArtifact(bootJar);
 		this.singlePublishedArtifact.addCandidate(artifact);

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/WarPluginAction.java

@@ -106,6 +106,7 @@ class WarPluginAction implements PluginApplicationAction {
 				.configure((buildImage) -> buildImage.getArchiveFile().set(bootWar.get().getArchiveFile()));
 	}
 
+	@SuppressWarnings("deprecation")
 	private void configureArtifactPublication(TaskProvider<BootWar> bootWar) {
 		LazyPublishArtifact artifact = new LazyPublishArtifact(bootWar);
 		this.singlePublishedArtifact.addCandidate(artifact);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 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.
@@ -66,14 +66,6 @@ public class BuildInfoProperties implements Serializable {
 	}
 
 	private Provider<String> projectVersion(Project project) {
-		try {
-			Provider<String> externalVersionProperty = project.getProviders().gradleProperty("version")
-					.forUseAtConfigurationTime();
-			externalVersionProperty.getOrNull();
-		}
-		catch (NoSuchMethodError ex) {
-			// Gradle < 6.5
-		}
 		return project.provider(() -> project.getVersion().toString());
 	}
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/plugin/SpringBootPluginIntegrationTests.java

@@ -39,10 +39,10 @@ class SpringBootPluginIntegrationTests {
 
 	@DisabledForJreRange(min = JRE.JAVA_14)
 	@Test
-	void failFastWithVersionOfGradle6LowerThanRequired() {
+	void failFastWithVersionOfGradle7LowerThanRequired() {
-		BuildResult result = this.gradleBuild.gradleVersion("6.7.1").buildAndFail();
+		BuildResult result = this.gradleBuild.gradleVersion("7.3.3").buildAndFail();
-		assertThat(result.getOutput()).contains(
+		assertThat(result.getOutput())
-				"Spring Boot plugin requires Gradle 6.8.x, 6.9.x, or 7.x. The current version is Gradle 6.7.1");
+				.contains("Spring Boot plugin requires Gradle 7.x (7.4 or later). The current version is Gradle 7.3.3");
 	}
 
 	@DisabledForJreRange(min = JRE.JAVA_16)