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:1636)
	org.apache.catalina.connector.Request.startAsync(Request.java:1628)
	org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1043)
	async.Async1.service(Async1.java:38)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:430)
	org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:169)

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


Apache Tomcat/9.0.7