import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link Multimaps#filterEntries(Multimap, Predicate)}.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible
class FilteredEntryMultimap<K extends @Nullable Object, V extends @Nullable Object>

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link AbstractUpgradeGoal} class.
 * Tests the shared functionality across upgrade goals including option handling,
 * .mvn directory creation, and upgrade orchestration.
 */
@DisplayName("AbstractUpgradeGoal")

import java.util.logging.Level;
import java.util.logging.Logger;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * The concurrent hash map implementation built by {@link CacheBuilder}.
 *
 * <p>This implementation is heavily derived from revision 1.96 of <a
 * href="http://tinyurl.com/ConcurrentHashMap">ConcurrentHashMap.java</a>.
 *
 * @author Charles Fry

import jcifs.util.SecureKeyManager;
import jcifs.util.Strings;

/**
 * This class stores and encrypts NTLM user credentials.
 *
 * Contrary to {@link NtlmPasswordAuthentication} this does not cause guest authentication
 * when the "guest" username is supplied. Use {@link AuthenticationType} instead.
 *
 * @author mbechler
 */
public class NtlmPasswordAuthenticator implements Principal, CredentialsInternal, Serializable, AutoCloseable {

		// array second dimension represents list of disks used per set.
		Sets [][]string `json:"sets"`
		// Distribution algorithm represents the hashing algorithm
		// to pick the right set index for an object.
		DistributionAlgo string `json:"distributionAlgo"`
	} `json:"xl"`
}

    set("k1", "a", "a")

    // Create an editor, then detach it.
    val editor = cache.edit("k1")!!
    editor.newSink(0).buffer().use { sink ->
      cache.evictAll()

      // Complete the original edit. It goes into a black hole.
      sink.writeUtf8("bb")
    }
    assertThat(cache["k1"]).isNull()
  }

  @Test
  fun `edit discarded after editor detached with concurrent write`() {

import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.Random;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link UnsignedBytes}.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class UnsignedBytesTest extends TestCase {

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Hashtable;
import java.util.Map;

/**
 * A cache of introspection information for a specific class instance.
 * Keys {@link Method} objects by a concatenation of the
 * method name and the names of classes that make up the parameters.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")

#### Do-stuff-later pool

Sometimes there's an action required like calling the application layer or responding to a ping, and the thread discovering the action is not the thread that should do the work. We enqueue a runnable on this executor and it gets handled by one of the executor's threads.

### Locks

import java.io.Serializable;
import java.util.Comparator;
import java.util.Objects;
import org.jspecify.annotations.Nullable;

/**
 * A generalized interval on any ordering, for internal use. Supports {@code null}. Unlike {@link
 * Range}, this allows the use of an arbitrary comparator. This is designed for use in the
 * implementation of subcollections of sorted collection types.
 *