error about jsr356 when start in eclipse used RJR

[KING754]

RJR with Jetty version
jetty version is 9.4.8v20171121

Java version
jdk 8

Question
have a error about jsr356 when start in eclipse used RJR
my project is websocket.
thanks!

the code is:
`
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.websocket.jsr356.server.ServerContainer;
import org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer;

public class WebsocketListener implements ServletContextListener {
@OverRide
public void contextDestroyed(ServletContextEvent arg0) {
}
private Server server = null;
@OverRide
public void contextInitialized(ServletContextEvent servletContextEvent) {
logger.info("initial start");
this.server = new Server(8080);
try {
ServletContext servletContext = servletContextEvent.getServletContext();
String contextPath = servletContext.getContextPath();
ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
context.setContextPath(contextPath);
server.setHandler(context);

	ServerContainer container = WebSocketServerContainerInitializer.configureContext(context);

	container.addEndpoint(EchoEndpoint.class);
	server.start();
	server.join(); // wait for server to stop
} catch (Exception e) {
	e.printStackTrace();
} finally {
	logger.info("initial end");
}

}
`

the error is :
Exception in thread "main" java.lang.LinkageError: loader constraint violation: when resolving method "org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer.configureContext(Lorg/eclipse/jetty/servlet/ServletContextHandler;)Lorg/eclipse/jetty/websocket/jsr356/server/ServerContainer;" the class loader (instance of runjettyrun/ProjectClassLoader) of the current class, com/dena/server/listener/WebsocketListener, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, org/eclipse/jetty/websocket/jsr356/server/deploy/WebSocketServerContainerInitializer, have different Class objects for the type org/eclipse/jetty/servlet/ServletContextHandler used in the signature at XXX.XXXXX.listener.WebsocketListener.contextInitialized(WebsocketListener.java:51) at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:890) at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:532) at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:853) at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:344) at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1515) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1477) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:785) at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:261) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:133) at org.eclipse.jetty.server.Server.start(Server.java:418) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:107) at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113) at org.eclipse.jetty.server.Server.doStart(Server.java:385) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at runjettyrun.Bootstrap.main(Bootstrap.java:89)