In the processing of moving my Flex 4.12 web app from GlassFish 3.1.2 to Tomcat 8.5.9, I observe the following SEVERE error in the tomcat log. Has anyone seen this before, and if so, recommend how to address it?
06-Jan-2017 13:49:07.644 SEVERE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [myApp] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4d6e6d7b]) and a value of type [flex.messaging.io.SerializationContext] (value [flex.messaging.io.SerializationContext@66135428]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.