Polish "Use try-with-resources to close resources automatically"

- Apply code formatting
- Use try-with-resources in many other places that were missed in the
  pull request

Closes gh-8045

spring-boot-tools/spring-boot-autoconfigure-processor/src/main/java/org/springframework/boot/autoconfigureprocessor/AutoConfigureAnnotationProcessor.java

@@ -201,13 +201,9 @@ public class AutoConfigureAnnotationProcessor extends AbstractProcessor {
 		if (!this.properties.isEmpty()) {
 			FileObject file = this.processingEnv.getFiler()
 					.createResource(StandardLocation.CLASS_OUTPUT, "", PROPERTIES_PATH);
-			OutputStream outputStream = file.openOutputStream();
-			try {
+			try (OutputStream outputStream = file.openOutputStream()) {
 				this.properties.store(outputStream, null);
 			}
-			finally {
-				outputStream.close();
-			}
 		}
 	}