NoSuchMethodError WebUtils.isValidOrigin Spring websocket - spring

Question

Here is my setup for a simple websocket controller in spring:
#Controller
#RequestMapping("/myHandler")
public class MyHandler extends TextWebSocketHandler {
public void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
String reply = "Hello there!!!!!!!!";
session.sendMessage(new TextMessage(reply));
}
}
mcv-dispatcher-servlet.xml
<websocket:handlers allowed-origins="http://localhost">
<websocket:mapping path="/myHandler" handler="myHandler"/>
<websocket:handshake-interceptors>
<bean class="org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor"/>
</websocket:handshake-interceptors>
</websocket:handlers>
<bean id="myHandler" class="com.aexp.socket.MyHandler"/>
I have updated all the jar files to correct versions
but I am getting following error:
HTTP Status 500 - Request processing failed; nested exception is org.springframework.web.socket.server.HandshakeFailureException: Uncaught failure for request http://localhost:8080/Websocket/myHandler; nested exception is java.lang.NoSuchMethodError: org.springframework.web.util.WebUtils.isValidOrigin(Lorg/springframework/http/HttpRequest;Ljava/util/Collection;)Z
root cause
org.springframework.web.socket.server.HandshakeFailureException: Uncaught failure for request http://localhost:8080/Websocket/myHandler; nested exception is java.lang.NoSuchMethodError: org.springframework.web.util.WebUtils.isValidOrigin(Lorg/springframework/http/HttpRequest;Ljava/util/Collection;)Z
org.springframework.web.socket.server.support.WebSocketHttpRequestHandler.handleRequest(WebSocketHttpRequestHandler.java:135)
org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:49)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
And when I am trying to create WebSocket object in JS I get following:
(Opcode -1)
This is the first time I am trying to use WebSockets so not sure what I am missing. Can someone point me to the right direction. Thanks.

Answer 1

Try modifying your .xml configuration as follows:
<websocket:handlers allowed-origins="http://localhost">
<websocket:mapping path="/myHandler" handler="myHandler"/>
<websocket:handshake-interceptors>
<bean class="org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor"/>
<websocket:sockjs/>
</websocket:handshake-interceptors>
Hope that helped!

Answer 2

You are missing the "spring-web" dependency.
Add the following to your pom:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
Also you probably need to run the "clean" goal, and rebuild the project.