java - Spring: Servlet 3.1 + SockJS = Async support must be enabled -

i´ve switched spring mvc configuration xml javaconfig , integrated websocket sockjs.

my issue is, application websocket , configuration works fine on "localhost" (tomcat 8.0.36). when upload war package server (tomcat 8.0.32) websocket connection fails following error code:

failed open session; nested exception java.lang.illegalargumentexception: async support must enabled on servlet , filters involved in async request processing. done in java code using servlet api or adding "true" servlet , filter declarations in web.xml. must use servlet 3.0+ container] root cause java.lang.illegalargumentexception: async support must enabled on servlet , filters involved in async request processing. done in java code using servlet api or adding "true" servlet , filter declarations in web.xml. must use servlet 3.0+ container

i´am not sure reason situation.

see below initializer:

public class appinitializer extends abstractannotationconfigdispatcherservletinitializer   {    @override   protected void customizeregistration(servletregistration.dynamic registration) {     registration.setinitparameter("dispatchoptionsrequest", "true");     registration.setasyncsupported(true);   }   protected class<?>[] getrootconfigclasses() {     return new class[] { myappconfiguration.class, myappsecurityconfiguration.class }; }  protected class<?>[] getservletconfigclasses() {     return null; }  protected string[] getservletmappings() {     return new string[]{"/"}; }  protected filter[] getservletfilters() {      characterencodingfilter characterencodingfilter = new characterencodingfilter();     characterencodingfilter.setencoding("utf-8");      return new filter[] { characterencodingfilter,                             new delegatingfilterproxy("springsecurityfilterchain").s}; }    

}

in myappconfiguration.class async enabled "@enableasync":

@enablewebmvc @enablescheduling  @enableasync @enablecaching @componentscan(basepackages="...") @configuration public class myappconfiguration extends webmvcconfigureradapter { 

in pom.xml load javax.servlet-api

        <dependency>       <groupid>javax.servlet</groupid>       <artifactid>javax.servlet-api</artifactid>       <version>3.1.0</version>       <scope>provided</scope>     </dependency> 

i checked spring docs didn´t find reason, why application doesn´t work on server, on localhost :-(

on localhost access tomcat directly , on server ajp connector. maybe must enabled within ajp connector support async request? ajp connector , apache webserver temporary disabled , accessed project direct tomcat url (:8080) .. same error :-/

i fixed issue ;-)

after upgrading apache tomcat vom version 8.0.32 8.5.4, works now. ´am able communicate websockets , use ajp .. so, please don´t use 8.0.32 , choose instead >= 8.5.4.