Immutant2 server logs showing fishy error message

Question

I got this error message a couple of times

21:36:01,172 ERROR [io.undertow.request] (default task-18) Undertow request failed HttpServerExchange{ CONNECT www.alipay.com:443}: java.lang.IllegalArgumentException: UT000068: Servlet path match failed

    at io.undertow.servlet.handlers.ServletPathMatchesData.getServletHandlerByPath(ServletPathMatchesData.java:83)
    at io.undertow.servlet.handlers.ServletPathMatches.getServletHandlerByPath(ServletPathMatches.java:76)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleRequest(ServletInitialHandler.java:121)
    at org.projectodd.wunderboss.wildfly.WildFlyWeb$1.handleRequest(WildFlyWeb.java:80)
    at io.undertow.server.session.SessionAttachmentHandler.handleRequest(SessionAttachmentHandler.java:68)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_80]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_80]
    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_80]

I believe Alipay is a chinese paymeny gateway. I am not using Alipay or any other payment gatweway currently. This is just a test application.

Any idea what is happening?

Answer 1

This is an attempt to use your site as a proxy tunnel. If you use a reverse proxy like nginx in front of your site, you can prevent requests like this from hitting your app.