import java.io.File;
import java.io.InputStream;
import java.net.URI;

abstract class AbstractArchiver implements CompressedReadableResource {
    protected final ReadableResourceInternal resource;
    protected final URI uri;

    public AbstractArchiver(ReadableResourceInternal resource) {
        assert resource != null;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class Bzip2Archiver extends AbstractArchiver {
    public Bzip2Archiver(ReadableResourceInternal resource) {
        super(resource);
    }

    @Override
    protected String getSchemePrefix() {
        return "bzip2:";
    }

import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GzipArchiver extends AbstractArchiver {
    public GzipArchiver(ReadableResourceInternal resource) {
        super(resource);
    }

    @Override
    protected String getSchemePrefix() {
        return "gzip:";
    }

Class <org.gradle.api.internal.file.archive.compression.AbstractArchiver> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (AbstractArchiver.java:0)