Polish

See gh-42075

Author: PiyalAhmed

buildSrc/src/main/java/org/springframework/boot/build/antora/GenerateAntoraPlaybook.java

@@ -175,7 +175,7 @@ private void addAntoraContentStartPaths(Set<String> startPaths) {
 	private void addDir(Map<String, Object> data) {
 		Path playbookDir = toRealPath(getOutputFile().get().getAsFile().toPath()).getParent();
 		Path outputDir = toRealPath(getProject().getBuildDir().toPath().resolve("site"));
-		data.put("output", Map.of("dir", "." + File.separator + playbookDir.relativize(outputDir).toString()));
+		data.put("output", Map.of("dir", "." + File.separator + playbookDir.relativize(outputDir)));
 	}
 
 	@SuppressWarnings("unchecked")

buildSrc/src/main/java/org/springframework/boot/build/bom/ManagedDependencies.java

@@ -99,7 +99,7 @@ static ManagedDependencies ofBom(File bom) {
 
 	static String asId(String groupId, String artifactId, String version, String classifier) {
 		String id = groupId + ":" + artifactId + ":" + version;
-		if (classifier != null && classifier.length() > 0) {
+		if (classifier != null && !classifier.isEmpty()) {
 			id = id + ":" + classifier;
 		}
 		return id;