private volatile boolean inDfs, inDomainDfs;
    private volatile long treeNum; // used by SmbFile.isOpen

    private final AtomicLong usageCount = new AtomicLong(0);
    private final AtomicBoolean sessionAcquired = new AtomicBoolean(true);

    private final boolean traceResource;
    private final List<StackTraceElement[]> acquires;
    private final List<StackTraceElement[]> releases;

    private DfsReferralData treeReferral;

    private static final String WEB_FS_CRAWLING_PROCESS = "WebFsCrawler";

    private static final String DATA_CRAWLING_PROCESS = "DataStoreCrawler";

    private static AtomicBoolean running = new AtomicBoolean(false);

    private static Queue<String> errors = new ConcurrentLinkedQueue<>();

    @Resource
    protected SearchEngineClient searchEngineClient;

    @Resource

 * well. Any subsequent {@code getXXX} method invocation attempt will fail with {@link IllegalStateException}.
 */
public class RepositorySystemSupplier implements Supplier<RepositorySystem> {
    private final AtomicBoolean closed = new AtomicBoolean(false);

    public RepositorySystemSupplier() {}

    private void checkClosed() {
        if (closed.get()) {
            throw new IllegalStateException("Supplier is closed");
        }

import java.util.concurrent.CopyOnWriteArrayList
import java.util.concurrent.ExecutorService
import java.util.concurrent.RejectedExecutionException
import java.util.concurrent.TimeUnit.MILLISECONDS
import java.util.concurrent.atomic.AtomicBoolean
import java.util.concurrent.atomic.AtomicInteger
import java.util.concurrent.locks.ReentrantLock
import okhttp3.Call
import okhttp3.Callback
import okhttp3.EventListener
import okhttp3.Interceptor

 */
package okhttp3.internal.publicsuffix

import java.io.IOException
import java.io.InterruptedIOException
import java.net.IDN
import java.util.concurrent.CountDownLatch
import java.util.concurrent.atomic.AtomicBoolean
import okhttp3.internal.and
import okhttp3.internal.platform.Platform
import okio.FileSystem
import okio.GzipSource
import okio.Path
import okio.Path.Companion.toPath
import okio.buffer

/**

import java.io.IOException
import java.io.InterruptedIOException
import java.net.UnknownHostException
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import kotlin.test.assertFailsWith
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

    private static final Logger logger = LogManager.getLogger(SystemHelper.class);

    protected final Map<String, String> designJspFileNameMap = new LinkedHashMap<>();

    protected final AtomicBoolean forceStop = new AtomicBoolean(false);

    protected LoadingCache<String, List<Map<String, String>>> langItemsCache;

    protected String filterPathEncoding;

    protected String[] supportedLanguages;

 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public class MavenRepositorySystemSupplier implements Supplier<RepositorySystem> {
    private final AtomicBoolean closed = new AtomicBoolean(false);

    public MavenRepositorySystemSupplier() {}

    private void checkClosed() {
        if (closed.get()) {
            throw new IllegalStateException("Supplier is closed");
        }

import java.net.ProtocolException
import java.net.SocketTimeoutException
import java.nio.charset.StandardCharsets
import java.util.Arrays
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import javax.net.ssl.HttpsURLConnection
import kotlin.test.assertFailsWith
import okhttp3.Headers
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.TestUtil.assumeNotWindows

import java.util.concurrent.PriorityBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.regex.MatchResult;
import java.util.regex.Pattern;