*     source-compatible</a> since 4.0)
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
/*
 * The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the
 * doEquivalent and doHash methods to indicate that the parameter cannot be null.
 */
public abstract class Equivalence<T> {
  /** Constructor for use by subclasses. */
  protected Equivalence() {}

  /**

            File remoteFile = new File(remoteRepo.getBasedir(), remoteRepo.pathOf(artifact));

            Files.createDirectories(localFile.toPath().getParent());
            Files.copy(remoteFile.toPath(), localFile.toPath());
        }

        artifact.setResolved(true);
    }

    public void retrieve(
            ArtifactRepository repository,
            File destination,

    }

    @Nonnull
    @Override
    public Path getPomPath() {
        return nonNull(project.getFile(), "pomPath").toPath();
    }

    @Override
    public Path getBasedir() {
        return nonNull(project.getBasedir(), "basedir").toPath();
    }

    @Nonnull
    @Override
    public List<DependencyCoordinate> getDependencies() {

        this.modelLocator = modelLocator;
        this.modelReader = modelReader;
    }

    @Deprecated
    @Override
    public File locatePom(File projectDirectory) {
        return locatePom(projectDirectory.toPath()).toFile();
    }

    @Override
    public Path locatePom(Path projectDirectory) {
        // Note that the ModelProcessor#locatePom never returns null

public class Jdk7FileCanonicalizer implements FileCanonicalizer {
    @SuppressWarnings("Since15")
    @Override
    public File canonicalize(File file) throws FileException {
        try {
            return file.toPath().toRealPath().toFile();
        } catch (IOException e) {
            throw new FileException(String.format("Could not canonicalize file %s.", file), e);
        }
    }

        assert fileMetadata.lastModified == lastModified(file)
    }

    private static long lastModified(File file) {
        return Files.getFileAttributeView(file.toPath(), BasicFileAttributeView, LinkOption.NOFOLLOW_LINKS).readAttributes().lastModifiedTime().toMillis()
    }

import okio.BufferedSink
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.FileSystem
import okio.Path
import okio.Path.Companion.toPath
import okio.buffer
import okio.gzip

/**
 * Downloads the public suffix list from https://publicsuffix.org/list/public_suffix_list.dat and
 * transforms the file into an efficient format used by OkHttp.
 *
 *

import okhttp3.Headers.Companion.headersOf
import okhttp3.internal.buildCache
import okhttp3.java.net.cookiejar.JavaNetCookieJar
import okhttp3.okio.LoggingFilesystem
import okhttp3.testing.PlatformRule
import okio.Path.Companion.toPath
import okio.fakefilesystem.FakeFileSystem
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

   * SipHash-2-4 algorithm</a> using a seed value of {@code k = 00 01 02 ...}.
   *
   * @since 15.0
   */
  public static HashFunction sipHash24() {
    return SipHashFunction.SIP_HASH_24;
  }

  /**
   * Returns a hash function implementing the <a href="https://131002.net/siphash/">64-bit
   * SipHash-2-4 algorithm</a> using the given seed.
   *

                // to delete on exit
            }
        } else if (metadataFile.exists()) {
            try (InputStream input = Files.newInputStream(metadataFile.toPath())) {
                metadata = new Metadata(new MetadataStaxReader().read(input, false));
            }
        }

        boolean changed;

        // If file could not be found or was not valid, start from scratch