#### Http2Writer

Socket writes are guarded by the Http2Writer. Only one stream can write at a time so that messages are not interleaved. Writes are either made by application-layer threads or the do-stuff-later pool.

### Holding multiple locks

    they could leak passwords and other authentication credentials to insecure
    logs.

 *  **WebSocket API now uses `RequestBody` and `ResponseBody` for messages.**
    This is a backwards-incompatible API change.

 *  **The DNS service is now pluggable.** In some situations this may be useful
    to manually prioritize specific IP addresses.

 *   <li>comparing each pair of objects from different equality groups returns false
 *   <li>the hash codes of any two equal objects are equal
 * </ul>
 *
 * <p>When a test fails, the error message labels the objects involved in the failed comparison as
 * follows:
 *
 * <ul>
 *   <li>"{@code [group }<i>i</i>{@code , item }<i>j</i>{@code ]}" refers to the

class MultipartBodyTest {
  @Test
  fun onePartRequired() {
    assertFailsWith<IllegalStateException> {
      MultipartBody.Builder().build()
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Multipart body must have at least one part.")
    }
  }

  @Test
  fun singlePart() {
    val expected =
      """
      |--123
      |
      |Hello, World!
      |--123--

    if (networkRequest == null && cacheResponse == null) {
      return Response
        .Builder()
        .request(chain.request())
        .protocol(Protocol.HTTP_1_1)
        .code(HTTP_GATEWAY_TIMEOUT)
        .message("Unsatisfiable Request (only-if-cached)")
        .sentRequestAtMillis(-1L)
        .receivedResponseAtMillis(System.currentTimeMillis())
        .build()
        .also {

This [sample factory](https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PrintEvents.java) creates a unique ID for each call and uses that ID to differentiate calls in log messages.

```java
class PrintingEventListener extends EventListener {
  public static final Factory FACTORY = new Factory() {
    final AtomicLong nextCallId = new AtomicLong(1L);

        mockProcessHelper.setOutput("Timeout occurred");

        String result = suggestJob.execute();

        assertNotNull(result);
        // The actual execution flow may not reach the timeout message
        assertTrue(result.contains("Session Id:"));
    }

    // Test executeSuggestCreator with Windows environment
    @Test
    public void test_executeSuggestCreator_windows() {

        return previousClusterState.getAndSet(status) != status;
    }

    /**
     * Creates a new action validator.
     *
     * @param requestManager  The request manager.
     * @param messagesCreator The messages creator.
     * @param runtimeGroups   The runtime groups.
     * @return A new action validator.
     */
    public ActionValidator<FessMessages> createValidator(final RequestManager requestManager,

    assertEquals("abcd", mediaType.parameter("boundary"))
    assertEquals("abcd", mediaType.parameter("BOUNDARY"))
  }

  @Test fun testMultipleParameters() {
    val mediaType = parse("Message/Partial; number=2; total=3; id=\"oc=******@****.***\"")
    assertEquals("2", mediaType.parameter("number"))
    assertEquals("3", mediaType.parameter("total"))
    assertEquals("oc=******@****.***", mediaType.parameter("id"))

import org.codelibs.core.exception.ClIllegalStateException;
import org.codelibs.core.exception.ClassNotFoundRuntimeException;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.message.MessageFormatter;

/**
 * Utility class for handling {@link ClassLoader}.
 *
 * @author koichik
 */
public abstract class ClassLoaderUtil {

    /**
     * Do not instantiate.
     */