Custom jgroups classes should be registered eagerly --------------------------------------------------- Key: WFLY-10647 URL: https://issues.jboss.org/browse/WFLY-10647 Project: WildFly Issue Type: Bug Components: Clustering Affects Versions: 13.0.0.Final Reporter: Radoslav Husar Assignee: Radoslav Husar If a message is received with configured custom classes (e.g. AUTH) but the receiving stack does not have the protocol, rather than handling and later discarding it, it floods the server log with CNFE. {noformat} 18:55:49,152 ERROR [org.jgroups.protocols.UDP] (ucast-receiver-5,ejb,node2) JGRP000030: node2: failed handling incoming message: java.lang.ClassNotFoundException: Class for magic number 1100 cannot be found at org.jgroups.conf.ClassConfigurator.create(ClassConfigurator.java:118) at org.jgroups.protocols.AuthHeader.readAuthToken(AuthHeader.java:70) at org.jgroups.protocols.AuthHeader.readFrom(AuthHeader.java:41) at org.jgroups.Message.readHeader(Message.java:870) at org.jgroups.Message.readFrom(Message.java:742) at org.jgroups.protocols.TP.handleSingleMessage(TP.java:1346) at org.jgroups.protocols.TP.receive(TP.java:1304) at org.jgroups.protocols.UDP$PacketReceiver.run(UDP.java:709) at org.jboss.as.clustering.jgroups.ClassLoaderThreadFactory.lambda$newThread$0(ClassLoaderThreadFactory.java:52) at java.lang.Thread.run(Thread.java:748) {noformat}