import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.errorprone.annotations.concurrent.LazyInit;
import com.google.j2objc.annotations.WeakOuter;
import java.util.AbstractCollection;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

- **SLF4J Logging**: Comprehensive logging throughout the codebase
- **Resource Management**: AutoCloseable patterns for file handles and connections
- **Thread Safety**: Components support concurrent access
- **DFS Support**: Distributed File System resolution
- **Streaming Operations**: Efficient directory listings and file operations
- **Buffer Caching**: Optimized buffer management

import com.google.common.cache.AbstractCache.StatsCounter;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link AbstractCache}.
 *

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.witness;

import java.net.InetAddress;
import java.util.concurrent.atomic.AtomicLong;

/**
 * Represents a witness service registration for SMB resource monitoring.
 * This class maintains registration state, heartbeat information, and

    /** Whether to use SMB2/SMB3 leases for caching */
    protected boolean useLease = true;
    /** Lease timeout in milliseconds */
    protected int leaseTimeout = 30000;
    /** Maximum number of concurrent leases */
    protected int maxLeases = 1000;
    /** Preferred lease version (1 or 2) */
    protected int leaseVersion = 2;
    /** Lease break timeout in seconds (per MS-SMB2 spec) */

 * with a {@code com.google.common} type.
 *
 * @author Louis Wasserman
 * @since 21.0
 */
@GwtCompatible
public final class MoreCollectors {

  /*
   * TODO(lowasser): figure out if we can convert this to a concurrent AtomicReference-based
   * collector without breaking j2cl?
   */
  private static final Collector<Object, ?, Optional<Object>> TO_OPTIONAL =
      Collector.of(
          ToOptionalState::new,

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.util.concurrent;

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.Nullable;

/** A utility method to perform unchecked casts to suppress errors produced by nullness analyses. */
@GwtCompatible

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package okhttp3.mockwebserver

import java.util.concurrent.TimeUnit
import okhttp3.Headers
import okhttp3.WebSocketListener
import okhttp3.internal.addHeaderLenient
import okhttp3.internal.http2.Settings
import okio.Buffer

class MockResponse : Cloneable {

    }

    @Test
    void testConcurrentFailureHandling() throws InterruptedException {
        IOException error = new IOException("Connection failed");

        // Simulate concurrent failures
        Thread[] threads = new Thread[5];
        for (int i = 0; i < threads.length; i++) {
            threads[i] = new Thread(() -> failover.handleFailure(failedChannel, error));
            threads[i].start();

 * limitations under the License.
 */
package okhttp3.internal.concurrent

import assertk.assertThat
import assertk.assertions.containsExactly
import assertk.assertions.containsExactlyInAnyOrder
import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import assertk.assertions.isSameAs
import java.util.concurrent.RejectedExecutionException
import kotlin.test.assertFailsWith
import okhttp3.TestLogHandler