HTTP Status 500 – Internal Server Error


Type Exception Report

Message A filter or servlet of the current chain does not support asynchronous operations.

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.lang.IllegalStateException: A filter or servlet of the current chain does not support asynchronous operations.
	org.apache.catalina.connector.Request.startAsync(Request.java:1668)
	org.apache.catalina.connector.Request.startAsync(Request.java:1661)
	org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1031)
	nonblocking.NumberWriter.doGet(NumberWriter.java:50)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:438)
	org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:169)
	org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/8.5.32