<img src="/img/tutorial/websockets/image05.png">

## Handling disconnections and multiple clients

When a WebSocket connection is closed, the `await websocket.receive_text()` will raise a `WebSocketDisconnect` exception, which you can then catch and handle like in this example.

//// tab | Python 3.9+

```Python hl_lines="79-81"
{!> ../../docs_src/websockets/tutorial003_py39.py!}
```

////

import org.codelibs.fess.Constants;
import org.codelibs.fess.es.config.exentity.FileConfig;
import org.codelibs.fess.es.config.exentity.LabelType;
import org.codelibs.fess.es.config.exentity.WebConfig;
import org.codelibs.fess.exception.GsaConfigException;
import org.dbflute.optional.OptionalEntity;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

 */
package org.codelibs.fess.es.config.exentity;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.es.config.bsentity.BsScheduledJob;
import org.codelibs.fess.exception.JobNotFoundException;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.job.LaScheduledJob;
import org.lastaflute.job.key.LaJobUnique;

/**
 * @author FreeGen
 */

/**
 * Tests for the {@link HtmlEscapers} class.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class HtmlEscapersTest extends TestCase {

  public void testHtmlEscaper() throws Exception {
    assertEquals("xxx", htmlEscaper().escape("xxx"));
    assertEquals(""test"", htmlEscaper().escape("\"test\""));
    assertEquals("'test'", htmlEscaper().escape("\'test'"));

 */
@J2ktIncompatible
@GwtIncompatible
@J2ObjCIncompatible // java.nio.file
@ElementTypesAreNonnullByDefault
public enum RecursiveDeleteOption {
  /**
   * Specifies that the recursive delete should not throw an exception when it can't be guaranteed
   * that it can be done securely, without vulnerability to race conditions (i.e. when the file
   * system does not support {@link SecureDirectoryStream}).
   *

import java.io.IOException;
import java.io.InputStream;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;

import org.codelibs.core.exception.IORuntimeException;

/**
 * {@link JarInputStream}用のユーティリティクラスです。
 *
 * @author koichik
 */
public abstract class JarInputStreamUtil {

    /**
     * {@link JarInputStream}を作成します。
     *

 * under the License.
 */
package org.apache.maven.api.services;

import org.apache.maven.api.annotations.Nonnull;

/**
 * Describes a problem that was encountered during model building. A problem can either be an exception that was thrown
 * or a simple string message. In addition, a problem carries a hint about its source, e.g. the POM file that exhibits
 * the problem.
 *
 */
public interface ModelProblem extends BuilderProblem {

 * under the License.
 */
package org.apache.maven.api.plugin;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.services.MavenException;

/**
 * An exception occurring during the execution of a plugin.
 *
 * @since 4.0.0
 */
@Experimental
public class MojoException extends MavenException {

    protected Object source;

    protected String longMessage;

import org.apache.maven.execution.scope.internal.MojoExecutionScope;
import org.apache.maven.session.scope.internal.SessionScope;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.eclipse.sisu.BeanEntry;
import org.eclipse.sisu.inject.BeanLocator;

@Named
public class SisuDiBridgeModule extends AbstractModule {

    protected final boolean discover;

        @Override
        public String toString() {
          throw new AssertionFailedError();
        }
      };

  private static final String FORMAT = "I ate %s pies.";

  private static void checkMessage(Exception e) {
    assertThat(e).hasMessageThat().isEqualTo("I ate 5 pies.");
  }