Upgrade to Checkstyle 10.12

Author: jhoeller

buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.java

@@ -16,6 +16,10 @@
 
 package org.springframework.build;
 
+import java.io.File;
+import java.nio.file.Path;
+import java.util.List;
+
 import io.spring.javaformat.gradle.SpringJavaFormatPlugin;
 import io.spring.nohttp.gradle.NoHttpExtension;
 import io.spring.nohttp.gradle.NoHttpPlugin;
@@ -27,12 +31,9 @@
 import org.gradle.api.plugins.quality.CheckstyleExtension;
 import org.gradle.api.plugins.quality.CheckstylePlugin;
 
-import java.io.File;
-import java.nio.file.Path;
-import java.util.List;
-
 /**
  * {@link Plugin} that applies conventions for checkstyle.
+ *
  * @author Brian Clozel
  */
 public class CheckstyleConventions {
@@ -49,7 +50,7 @@ public void apply(Project project) {
 			project.getPlugins().apply(CheckstylePlugin.class);
 			project.getTasks().withType(Checkstyle.class).forEach(checkstyle -> checkstyle.getMaxHeapSize().set("1g"));
 			CheckstyleExtension checkstyle = project.getExtensions().getByType(CheckstyleExtension.class);
-			checkstyle.setToolVersion("10.10.0");
+			checkstyle.setToolVersion("10.12.0");
 			checkstyle.getConfigDirectory().set(project.getRootProject().file("src/checkstyle"));
 			String version = SpringJavaFormatPlugin.class.getPackage().getImplementationVersion();
 			DependencySet checkstyleDependencies = project.getConfigurations().getByName("checkstyle").getDependencies();

buildSrc/src/main/java/org/springframework/build/ConventionsPlugin.java

@@ -25,7 +25,7 @@
  * Plugin to apply conventions to projects that are part of Spring Framework's build.
  * Conventions are applied in response to various plugins being applied.
  *
- * When the {@link JavaBasePlugin} is applied, the conventions in {@link CheckstyleConventions},
+ * <p>When the {@link JavaBasePlugin} is applied, the conventions in {@link CheckstyleConventions},
  * {@link TestConventions} and {@link JavaConventions} are applied.
  * When the {@link KotlinBasePlugin} is applied, the conventions in {@link KotlinConventions}
  * are applied.
@@ -41,4 +41,5 @@ public void apply(Project project) {
 		new KotlinConventions().apply(project);
 		new TestConventions().apply(project);
 	}
+
 }