IOException: Broken pipe with IntelliJ embedded Tomcat

When starting the Beverage Buddy with Tomcat 9.0.6, BB starts properly but Tomcat prints out IOException: Broken pipe to the log (see this gist for a full log: log ). With Tomcat 8.5.27 the exception is slightly different: log

I thought this to be some integration issue for Tomcat + Flow, however weird thing is that when I try to start the Skeleton Starter using Tomcat 9.0.6, the exception does not show in the log. I thought this is because of Beverage Buddy fetching Polymer templates from the server, but the exception is also present for the Kotlin port of Beverage Buddy which does not use Polymer Templates at all.

[mikotin]

Versions Tomcat 9.0.6 and Tomcat 8.5.27 also tested without given exception. This might be something to do with deploy setup with IntelliJ, @mvysny could you make sure that given project (beveragebuddy) is undeployed before it’s gets deployd (by intellij) ?

[mvysny]

@mikotin you’re right! When I just drop the beverage-buddy-vok.war into Tomcat’s webapps and access localhost:8080/beverage-buddy-vok, no exceptions are printed out. But if I run Tomcat from Intellij, the IOException: Broken pipe is shown. Tested it with Tomcat 9.0.8 on Linux.