import com.google.common.collect.Iterables;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class S3ResourceResolver {

    private static final Pattern FILENAME_PATTERN = Pattern.compile("[^/]+\\.*$");

    private static final Function<S3ObjectSummary, String> EXTRACT_FILE_NAME = new Function<S3ObjectSummary, String>() {

        objectListing.getObjectSummaries() >> [objectSummary, objectSummary2]
        objectListing.getCommonPrefixes() >> ['root/SNAPSHOT']

        S3ResourceResolver resolver = new S3ResourceResolver()

        when:
        def results = resolver.resolveResourceNames(objectListing)

        then:
        results == ['some.jar', 'someOther.jar', 'SNAPSHOT']
    }

import java.util.List;

@SuppressWarnings("deprecation")
public class S3Client {
    private static final Logger LOGGER = LoggerFactory.getLogger(S3Client.class);

    private S3ResourceResolver resourceResolver = new S3ResourceResolver();
    private AmazonS3Client amazonS3Client;
    private final S3ConnectionProperties s3ConnectionProperties;

Class <org.gradle.internal.resource.transport.aws.s3.S3ResourceResolver$1> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (S3ResourceResolver.java:0)
Class <org.gradle.internal.resource.transport.aws.s3.S3ResourceResolver> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (S3ResourceResolver.java:0)