* guarantees.
 *
 * <p>This class should not be assumed to be universally superior to {@code java.util.HashMap}.
 * Generally speaking, this class reduces object allocation and memory consumption at the price of
 * moderately increased constant factors of CPU. Only use this class when there is a specific reason
 * to prioritize memory over CPU.
 *
 * @author Louis Wasserman

   * ImmutableList<NewType> result =
   *     (ImmutableList) stream.filter(NewType.class::isInstance).collect(toImmutableList());
   * }
   */
  @GwtIncompatible // Class.isInstance
  public final <T> FluentIterable<T> filter(Class<T> type) {
    return from(Iterables.filter(getDelegate(), type));
  }

  /**

import jcifs.Configuration;
import jcifs.config.BaseConfiguration;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for NetServerEnum2
 */
class NetServerEnum2Test {

    @Mock
    private Configuration mockConfig;

    private NetServerEnum2 netServerEnum2;
    private Configuration realConfig;

    @BeforeEach

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link ModelUpgradeStrategy} class.
 * Tests Maven model version upgrades and namespace transformations.
 */
@DisplayName("ModelUpgradeStrategy")
class ModelUpgradeStrategyTest {

    private ModelUpgradeStrategy strategy;

    @BeforeEach
    void setUp() {
        strategy = new ModelUpgradeStrategy();

/**
 * Tests for {@link Graphs}. Tests assume that the implementation of the method {@code addEdge} adds
 * the missing nodes to the graph, then adds the edge between them.
 */
@RunWith(JUnit4.class)
@NullUnmarked
public class GraphsTest {
  private static final Integer N1 = 1;
  private static final Integer N2 = 2;
  private static final Integer N3 = 3;
  private static final Integer N4 = 4;

 * @author Mike Bostock
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class ListsTest extends TestCase {

  private static final Collection<Integer> SOME_COLLECTION = asList(0, 1, 1);

  private static final Iterable<Integer> SOME_ITERABLE = new SomeIterable();

  private static final class RemoveFirstFunction implements Function<String, String>, Serializable {
    @Override

from dataclasses import field  # (1)

from fastapi import FastAPI
from pydantic.dataclasses import dataclass  # (2)


@dataclass
class Item:
    name: str
    description: str | None = None


@dataclass
class Author:
    name: str
    items: list[Item] = field(default_factory=list)  # (3)


app = FastAPI()


@app.post("/authors/{author_id}/items/", response_model=Author)  # (4)

from dataclasses import field  # (1)
from typing import Union

from fastapi import FastAPI
from pydantic.dataclasses import dataclass  # (2)


@dataclass
class Item:
    name: str
    description: Union[str, None] = None


@dataclass
class Author:
    name: str
    items: list[Item] = field(default_factory=list)  # (3)


app = FastAPI()


@app.post("/authors/{author_id}/items/", response_model=Author)  # (4)

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;

/**
 * Utility class for conversions related to {@link Calendar}.
 *
 * @author higa
 */
public abstract class CalendarConversionUtil {

    /**
     * Do not instantiate.
     */
    protected CalendarConversionUtil() {
    }

    /**

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

class FileSourceTest {

    @Test
    void testFileSource() {
        NullPointerException e = assertThrows(
                NullPointerException.class,
                () -> new FileSource((File) null),
                "Should fail, since you must specify a file");