Am Donnerstag, dem 13.10.2022 um 11:38 -0500 schrieb Justin Bertram: > It looks like perhaps the responses are being read by the client out > of order or something like that. Are you using both the core JMS > client and broker from 2.24.0? Yes, both client and broker are 2.24.0.
> How often do you see this? Have you tried reproducing with the latest > release (i.e. 2.26.0)? Very infrequently actually. We have automated tests and they fail once every few days with this message. So in less than 1 out of 1000 I would say (very rough guess). I can try with 2.26.0. > On Thu, Oct 13, 2022 at 9:51 AM Thorsten Meinl > <thorsten.me...@knime.com> > wrote: > > > Hi all, > > > > Very occasionally we get the following exception when creating a > > new > > topic in Artemis (2.24.0): > > > > Caused by: java.lang.ClassCastException: class > > org.apache.activemq.artemis.core.protocol.core.impl.wireformat.Null > > Resp > > onseMessage_V2 cannot be cast to class > > org.apache.activemq.artemis.core.protocol.core.impl.wireformat.Sess > > ionB > > indingQueryResponseMessage_V4 > > (org.apache.activemq.artemis.core.protocol.core.impl.wireformat.Nul > > lRes > > ponseMessage_V2 and > > org.apache.activemq.artemis.core.protocol.core.impl.wireformat.Sess > > ionB > > indingQueryResponseMessage_V4 are in unnamed module of loader > > io.quarkus.bootstrap.classloading.QuarkusClassLoader @3bf0cb2d) > > at > > org.apache.activemq.artemis.core.protocol.core.impl.ActiveMQSession > > Cont > > ext.addressQuery(ActiveMQSessionContext.java:413) > > at > > org.apache.activemq.artemis.core.client.impl.ClientSessionImpl.addr > > essQ > > uery(ClientSessionImpl.java:794) > > at > > org.apache.activemq.artemis.jms.client.ActiveMQSession.lookupTopic( > > Acti > > veMQSession.java:1325) > > at > > org.apache.activemq.artemis.jms.client.ActiveMQSession.internalCrea > > teTo > > pic(ActiveMQSession.java:554) > > at > > org.apache.activemq.artemis.jms.client.ActiveMQSession.createTopic( > > Acti > > veMQSession.java:542) > > at > > org.apache.activemq.artemis.jms.client.ActiveMQJMSContext.createTop > > ic(A > > ctiveMQJMSContext.java:418) > > > > Any hints what could be the problem? > > > > Thanks, > > > > Thorsten > > > > -- > > Dr.-Ing. Thorsten Meinl > > KNIME AG > > Talacker 50 > > 8001 Zurich, Switzerland > > > > > > -- Dr.-Ing. Thorsten Meinl KNIME AG Talacker 50 8001 Zurich, Switzerland
