Update BootJar to support Gradle's configuration cache

See gh-22922

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

@@ -19,6 +19,7 @@ package org.springframework.boot.gradle.tasks.bundling;
 import java.io.File;
 import java.util.Collections;
 import java.util.concurrent.Callable;
+import java.util.function.Function;
 
 import org.gradle.api.Action;
 import org.gradle.api.Project;
@@ -72,7 +73,7 @@ public class BootJar extends Jar implements BootArchive {
 	 * Creates a new {@code BootJar} task.
 	 */
 	public BootJar() {
-		this.support = new BootArchiveSupport(LAUNCHER, this::isLibrary, this::resolveZipCompression);
+		this.support = new BootArchiveSupport(LAUNCHER, new LibrarySpec(), new ZipCompressionResolver());
 		this.bootInfSpec = getProject().copySpec().into("BOOT-INF");
 		this.mainClass = getProject().getObjects().property(String.class);
 		configureBootInfSpec(this.bootInfSpec);
@@ -325,4 +326,22 @@ public class BootJar extends Jar implements BootArchive {
 		return this.resolvedDependencies;
 	}
 
+	private final class LibrarySpec implements Spec<FileCopyDetails> {
+
+		@Override
+		public boolean isSatisfiedBy(FileCopyDetails details) {
+			return isLibrary(details);
+		}
+
+	}
+
+	private final class ZipCompressionResolver implements Function<FileCopyDetails, ZipCompression> {
+
+		@Override
+		public ZipCompression apply(FileCopyDetails details) {
+			return resolveZipCompression(details);
+		}
+
+	}
+
 }