Only reference Gradle tasks beneath org.gradle.api

Fixes gh-39584

Author: wilkinsona

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

@@ -27,7 +27,7 @@
 import org.gradle.api.tasks.SourceSet;
 import org.gradle.api.tasks.TaskContainer;
 import org.gradle.api.tasks.TaskProvider;
-import org.gradle.jvm.tasks.Jar;
+import org.gradle.api.tasks.bundling.Jar;
 
 import org.springframework.boot.gradle.tasks.buildinfo.BuildInfo;
 

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

@@ -35,8 +35,8 @@
 import org.gradle.api.plugins.JavaApplication;
 import org.gradle.api.tasks.TaskContainer;
 import org.gradle.api.tasks.TaskProvider;
+import org.gradle.api.tasks.application.CreateStartScripts;
 import org.gradle.jvm.application.scripts.TemplateBasedScriptGenerator;
-import org.gradle.jvm.application.tasks.CreateStartScripts;
 import org.gradle.util.GradleVersion;
 
 import org.springframework.boot.gradle.tasks.run.BootRun;

src/checkstyle/checkstyle.xml

@@ -24,6 +24,8 @@
 			<property name="regexp" value="true" />
 			<property name="illegalClasses"
 				value="javax.annotation.PostConstruct, jakarta.annotation.PostConstruct"/>
+			<property name="illegalPkgs"
+				value="^org\.gradle\.(?!api).*\.tasks.*"/>
 		</module>
 		<module
 			name="com.puppycrawl.tools.checkstyle.checks.imports.ImportControlCheck">