Merge branch '2.3.x'

Closes gh-23732

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/tasks/bundling/BootJar.java

@@ -21,6 +21,7 @@ import java.util.Collections;
 import java.util.concurrent.Callable;
 
 import org.gradle.api.Action;
+import org.gradle.api.Project;
 import org.gradle.api.artifacts.Configuration;
 import org.gradle.api.artifacts.ResolvableDependencies;
 import org.gradle.api.file.CopySpec;
@@ -123,7 +124,14 @@ public class BootJar extends Jar implements BootArchive {
 		return this.support.createCopyAction(this);
 	}
 
+	/**
+	 * Returns the {@link Configuration Configurations} of the project associated with
+	 * this task.
+	 * @return the configurations
+	 * @deprecated since 2.3.5 in favor of {@link Project#getConfigurations}
+	 */
 	@Internal
+	@Deprecated
 	protected Iterable<Configuration> getConfigurations() {
 		return getProject().getConfigurations();
 	}