Check for Reactor Netty disconnected client errors

Extend the list of disconnected client errors in HttpWebHandlerAdapter
to include the Reactor Netty AbortedException as well exceptions with
the message "connection reset by peer".

Closes gh-21790

spring-web/src/main/java/org/springframework/web/server/adapter/HttpWebHandlerAdapter.java

@@ -69,17 +69,9 @@ public class HttpWebHandlerAdapter extends WebHandlerDecorator implements HttpHa
 	private static final String DISCONNECTED_CLIENT_LOG_CATEGORY =
 			"org.springframework.web.server.DisconnectedClient";
 
-	/**
-	 * Tomcat: ClientAbortException or EOFException
-	 * Jetty: EofException
-	 * WildFly, GlassFish: java.io.IOException "Broken pipe" (already covered)
-	 * <p>TODO:
-	 * This definition is currently duplicated between HttpWebHandlerAdapter
-	 * and AbstractSockJsSession. It is a candidate for a common utility class.
-	 * @see #isDisconnectedClientError(Throwable)
-	 */
-	private static final Set<String> DISCONNECTED_CLIENT_EXCEPTIONS =
-			new HashSet<>(Arrays.asList("ClientAbortException", "EOFException", "EofException"));
+	 // Similar declaration exists in AbstractSockJsSession..
+	private static final Set<String> DISCONNECTED_CLIENT_EXCEPTIONS = new HashSet<>(
+			Arrays.asList("AbortedException", "ClientAbortException", "EOFException", "EofException"));
 
 
 	private static final Log logger = LogFactory.getLog(HttpWebHandlerAdapter.class);
@@ -299,8 +291,11 @@ public class HttpWebHandlerAdapter extends WebHandlerDecorator implements HttpHa
 
 	private boolean isDisconnectedClientError(Throwable ex) {
 		String message = NestedExceptionUtils.getMostSpecificCause(ex).getMessage();
-		if (message != null && message.toLowerCase().contains("broken pipe")) {
-			return true;
+		if (message != null) {
+			String text = message.toLowerCase();
+			if (text.contains("broken pipe") || text.contains("connection reset by peer")) {
+				return true;
+			}
 		}
 		return DISCONNECTED_CLIENT_EXCEPTIONS.contains(ex.getClass().getSimpleName());
 	}