SpringBoot web-socket without stomp - spring-boot

Question

Tries to create an web application based on spring boot with web-socket support
Define public static main class annotated with #SpringBootApplication
#SpringBootApplication
public class Facade {
public static void main(String[] argv) throws IOException {
Map<String,Object> contextProperties = new HashMap<>();
contextProperties.put("server.port",p.getProperty("server.port","8091"));
SpringApplication app = new SpringApplication(Facade.class);
app.setDefaultProperties(contextProperties);
app.run(argv);
}
}
Add configuration class
#Configuration
#EnableWebSocket
public class WebSocketConfiguration implements WebSocketConfigurer {
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
registry.addHandler(new SocketTextHandler(), "/ws").setAllowedOrigins("*");
}
}
Add handler
#Component
public class SocketTextHandler extends TextWebSocketHandler {
#Override
public void handleTextMessage(WebSocketSession session, TextMessage message) throws IOException {
String payload = message.getPayload();
session.sendMessage(new TextMessage("Hi " + payload + " how may we help you?"));
}
#Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
session.sendMessage(new TextMessage("Connected!"));
}
}
There are maven dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-coyote</artifactId>
<version>9.0.31</version>
</dependency>
spring boot version is 2.5.5
When I connect to socket using JavaScript
webSocket = new WebSocket(wsUrl);
I see in app logs
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.socket.server.HandshakeFailureException: Servlet request failed to upgrade to WebSocket: http://127.0.0.1:8091/ws; nested exception is javax.servlet.ServletException: java.lang.reflect.InvocationTargetException] with root cause
java.lang.ClassNotFoundException: org.apache.coyote.http11.upgrade.UpgradeInfo
The tomcat-coyote dependency is in pom.xlm
I used web-sockets in jersey implementation under tomcat9. Now I tries to migrate application to spring-boot, but confused with NoClassDef exception.
Could you please explain or suggest solution for this cause.