https://bz.apache.org/bugzilla/show_bug.cgi?id=61886
--- Comment #8 from Konstantin Kolinko <knst.koli...@gmail.com> --- Testing current Tomcat 8.5-dev @r1820546 A ConcurrentModificationException is printed on the console, but not in the logs. Nothing interesting in the logs. Not attaching them here. 08-Jan-2018 17:08:49.566 INFO [http-nio-8080-exec-1] async.AsyncStockServlet.<init> AsyncStockServlet created java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) at java.util.ArrayList$Itr.next(ArrayList.java:831) at async.Stockticker.run(Stockticker.java:83) at java.lang.Thread.run(Thread.java:745) java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) at java.util.ArrayList$Itr.next(ArrayList.java:831) at async.Stockticker.run(Stockticker.java:83) at java.lang.Thread.run(Thread.java:745) java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859) at java.util.ArrayList$Itr.next(ArrayList.java:831) at async.Stockticker.run(Stockticker.java:83) at java.lang.Thread.run(Thread.java:745) -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org