[ https://issues.jboss.org/browse/WFLY-12304?page=com.atlassian.jira.plugin... ] Flavia Rainone commented on WFLY-12304: --------------------------------------- It appears that this could be the cause of all the trouble: {code}java.lang.ClassCastException: class org.apache.activemq.artemis.core.remoting.impl.netty.NonClosingDefaultFileRegion cannot be cast to class io.netty.buffer.ByteBuf (org.apache.activemq.artemis.core.remoting.impl.netty.NonClosingDefaultFileRegion is in unnamed module of loader 'org.apache.activemq.artemis(a)2.10.0' @209880f3; io.netty.buffer.ByteBuf is in unnamed module of loader 'io.netty(a)4.1.34.Final' @4af22e87){code} -- This message was sent by Atlassian Jira (v7.13.5#713005)