UnsupportedOperationException.class,
        () -> collection.addAll(MinimalCollection.of(e3(), e0())));
    expectUnchanged();
  }

  @CollectionFeature.Require({SUPPORTS_ADD, FAILS_FAST_ON_CONCURRENT_MODIFICATION})
  @CollectionSize.Require(absent = ZERO)
  public void testAddAllConcurrentWithIteration() {
    assertThrows(
        ConcurrentModificationException.class,
        () -> {

import com.squareup.moshi.Moshi
import java.io.IOException
import okhttp3.OkHttpClient
import okhttp3.Request

class ParseResponseWithMoshi {
  private val client = OkHttpClient()
  private val moshi = Moshi.Builder().build()
  private val gistJsonAdapter = moshi.adapter(Gist::class.java)

  fun run() {
    val request =
      Request
        .Builder()

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class SubModel(BaseModel):
    a: Optional[str] = "foo"


class Model(BaseModel):
    x: Optional[int] = None
    sub: SubModel


class ModelSubclass(Model):
    y: int
    z: int = 0
    w: Optional[int] = None


class ModelDefaults(BaseModel):
    w: Optional[str] = None
    x: Optional[str] = None

      CallStart::class,
      ProxySelectStart::class,
      ProxySelectEnd::class,
      DnsStart::class,
      DnsEnd::class,
      ConnectStart::class,
      ConnectEnd::class,
      ConnectionAcquired::class,
      RequestHeadersStart::class,
      RequestHeadersEnd::class,
      ResponseHeadersStart::class,
      ResponseHeadersEnd::class,
      FollowUpDecision::class,

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto" class="external-link" target="_blank">X-Forwarded-Proto</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host" class="external-link" target="_blank">X-Forwarded-Host</a>

///

* <a href="https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi" class="external-link" target="_blank">Render</a>

 * the {@link Futures#catching(ListenableFuture, Class, com.google.common.base.Function,
 * java.util.concurrent.Executor) Futures.catching} family of methods. Those versions have slightly
 * different signatures.
 */
@GwtCompatible
@J2ktIncompatible // Super-sourced
abstract class GwtFuturesCatchingSpecialization {
  /*
   * This server copy of the class is empty. The corresponding GWT copy contains alternative

    assertThrows(
        ConcurrentModificationException.class,
        () -> {
          Iterator<V> iterator = getMap().values().iterator();
          put(e3());
          iterator.next();
        });
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  public void testPut_unsupportedNotPresent() {
    assertThrows(UnsupportedOperationException.class, () -> put(e3()));
    expectUnchanged();

/**
 * Unit tests for the {@link ModelVersionUtils} utility class.
 * Tests model version detection, validation, upgrade logic, and namespace operations.
 */
@DisplayName("ModelVersionUtils")
class ModelVersionUtilsTest {

    @Nested
    @DisplayName("Model Version Detection")
    class ModelVersionDetectionTests {

        @Test

import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link ServiceManager}.
 *
 * @author Luke Sandberg
 * @author Chris Nokleberg
 */
@NullUnmarked
public class ServiceManagerTest extends TestCase {

  private static class NoOpService extends AbstractService {
    @Override
    protected void doStart() {
      notifyStarted();
    }

    @Override
    protected void doStop() {
      notifyStopped();