lock = new Object();
    }
    public int read() throws IOException {
        int result = -1;

        synchronized( lock ) {
            try {
                while( used == 0 ) {
                    lock.wait();
                }
            } catch( InterruptedException ie ) {

            }
        }
        obj = getCachedAddress( name );
        if( obj == null ) {
            synchronized( LOOKUP_TABLE ) {
                LOOKUP_TABLE.put( name, name );
            }
        }

        return obj;
    }
    private static void updateLookupTable( Name name ) {
        synchronized( LOOKUP_TABLE ) {
            LOOKUP_TABLE.remove( name );
            LOOKUP_TABLE.notifyAll();
        }

                NtlmPasswordAuthentication auth,
                SID[] sids) throws IOException {
        DcerpcHandle handle = null;
        LsaPolicyHandle policyHandle = null;

synchronized (sid_cache) {
        try {
            handle = DcerpcHandle.getHandle("ncacn_np:" + authorityServerName +
                    "[\\PIPE\\lsarpc]", auth);
            String server = authorityServerName;

package okhttp3

import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSession

class RecordingHostnameVerifier : HostnameVerifier {
  @JvmField
  val calls: MutableList<String> = mutableListOf()

  @Synchronized override fun verify(
    hostname: String,
    session: SSLSession,
  ): Boolean {
    calls.add("verify $hostname")
    return true
  }

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Synchronized#queue} and {@link Queues#synchronizedQueue}.
 *
 * @author Kurt Alfred Kluever
 */
public class SynchronizedQueueTest extends TestCase {

  protected Queue<String> create() {
    TestQueue<String> inner = new TestQueue<>();
    Queue<String> outer = Synchronized.queue(inner, inner.mutex);

      delegate.clear();
    }

    @Override
    public Collection<V> values() {
      assertTrue(Thread.holdsLock(mutex));
      /* TODO: verify that the Collection is also synchronized? */
      return delegate.values();
    }

    @Override
    public Set<Cell<R, C, V>> cellSet() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.cellSet();
    }

    @Override

      delegate.clear();
    }

    @Override
    public Collection<V> values() {
      assertTrue(Thread.holdsLock(mutex));
      /* TODO: verify that the Collection is also synchronized? */
      return delegate.values();
    }

    @Override
    public Set<Cell<R, C, V>> cellSet() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.cellSet();
    }

    @Override

     *
     * @see jcifs.internal.SMBSigningDigest#sign(byte[], int, int, jcifs.internal.CommonServerMessageBlock,
     *      jcifs.internal.CommonServerMessageBlock)
     */
    @Override
    public synchronized void sign ( byte[] data, int offset, int length, CommonServerMessageBlock request, CommonServerMessageBlock response ) {
        this.digest.reset();

        // zero out signature field

    private final Map<TransferResourceIdentifier, TransferResourceAndSize> transfers = new LinkedHashMap<>();
    private final FileSizeFormat format = new FileSizeFormat(); // use in a synchronized fashion
    private final StringBuilder buffer = new StringBuilder(128); // use in a synchronized fashion

    private final boolean printResourceNames;
    private int lastLength;

    public ConsoleMavenTransferListener(

     *
     * @param factory The URL stream handler factory.
     */
    public static void setURLStreamHandlerFactory(
            URLStreamHandlerFactory factory) {
        synchronized (PROTOCOL_HANDLERS) {
            if (Handler.factory != null) {
                throw new IllegalStateException(
                        "URLStreamHandlerFactory already set.");
            }