Description of problem: There is missing one message in scenario with suspended EAP 6 server with MDB. Test scenario - "suspend server in remote JCA topology in cluster" 1. Start servers 1 and 3 in HornetQ cluster (jms cluster) with deployed queues InQueue and OutQueue 2. Start servers 2 and 4 (mdb servers) which has configured resource adapter to connect to jms cluster 3. Start sending 10 000 messages to InQueue to jms cluster and deploy MDB to each mdb server - MDB consumes messages from InQueue and for each message sends a new message to OutQueue. MDB makes JNDI lookup for OutQueue for each message. 5. During processing of messages by MDB, suspend process of server 2 (with MDB) for 10 minutes and resume 6. Wait until all messages are processed from InQueue Pass criteria: Number of sent and received messages is the same. There are no lost or duplicated messages. Test failed because there was 1 message sent to InQueue which did not have its corresponding message in OutQueue: Lost message detected - there are not corresponding messages for: [ID:e613ea9c-a30f-11e5-9e86-f7c57f59158b] Attaching traces from all 4 servers and clients (test-suite.log). Link to failed Jenkins job - https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap-64x-patched-hornetq-remote-jca-suspend-tests/9/testReport/org.jboss.qa.hornetq.test.remote.jca/RemoteJcaWithSuspendTestCase/suspendOfMdbInClusterWithLodhLikeMdbMixMessages/ Version-Release number of selected component (if applicable): EAP 6.4.5.CP + bz#1290841 Steps to Reproduce: git clone git://git.app.eng.bos.redhat.com/jbossqe/eap-tests-hornetq.git cd eap-tests-hornetq/ git checkout cpu-load # copy patched EAP 6.4.5.CP with BZ1290841 from messaging-10 scp 10.16.100.24:/home/mnovak/tmp/jboss-eap-6.4.5-patched-bz1290841.zip . cd scripts # this groovy script takes EAP 6.4.x zip and unzips to 4 directories, it also makes better "default" config, change path to EAP zip per your machine groovy -DEAP_ZIP_URL=file://$PWD/../jboss-eap-6.4.5-patched-bz1290841.zip PrepareServers.groovy export WORKSPACE=$PWD export JBOSS_HOME_1=$WORKSPACE/server1/jboss-eap export JBOSS_HOME_2=$WORKSPACE/server2/jboss-eap export JBOSS_HOME_3=$WORKSPACE/server3/jboss-eap export JBOSS_HOME_4=$WORKSPACE/server4/jboss-eap cd ../jboss-hornetq-testsuite/ mvn clean test -Dtest=RemoteJcaWithSuspendTestCase#suspendOfMdbInClusterWithLodhLikeMdbMixMessages -DfailIfNoTests=false | tee log Actual results: There is missing one message. Expected results: There should no lost messages.