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https://issues.apache.org/jira/browse/ARTEMIS-1682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Martyn Taylor reassigned ARTEMIS-1682:
--------------------------------------

    Assignee: Martyn Taylor

> duplicate classes in Artemis jars
> ---------------------------------
>
>                 Key: ARTEMIS-1682
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1682
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>            Reporter: Jeff Mesnil
>            Assignee: Martyn Taylor
>            Priority: Blocker
>
> This is a recent change in Artemis master branch.
> The org.apache.activemq.artemis.utils package whose source files are in 
> artemis-commons are also present in the artemis-server jar.
>  
> {code:java}
> $ find . -name ExecutorFactory.java
> ./artemis-commons/src/main/java/org/apache/activemq/artemis/utils/ExecutorFactory.java
> $ jar tvf artemis-commons/target/artemis-commons-2.5.0-SNAPSHOT.jar | grep 
> ExecutorFactory
> 2335 Wed Feb 14 09:30:54 CET 2018 
> org/apache/activemq/artemis/utils/actors/OrderedExecutorFactory.class
> 230 Wed Feb 14 09:30:54 CET 2018 
> org/apache/activemq/artemis/utils/ExecutorFactory.class
> $ jar tvf artemis-server/target/artemis-server-2.5.0-SNAPSHOT.jar | grep 
> ExecutorFactory
> 230 Wed Feb 14 09:30:54 CET 2018 
> org/apache/activemq/artemis/utils/ExecutorFactory.class
> {code}
>  
> This causes issue when we integrate Artemis on our application server that is 
> using a modular class loader as there are 2 definitions of the 
> ExecutorFactory class and we end up with weird errors such as:
> {code}
> 12:02:16,754 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 
> 68) MSC000001: Failed to start service 
> jboss.messaging-activemq.default.jms.manager: 
> org.jboss.msc.service.StartException in service 
> jboss.messaging-activemq.default.jms.manager: 
> java.lang.IncompatibleClassChangeError: Class 
> org.apache.activemq.artemis.utils.actors.OrderedExecutorFactory does not 
> implement the requested interface 
> org.apache.activemq.artemis.utils.ExecutorFactory
>         at 
> org.wildfly.extension.messaging.activemq.jms.JMSService.doStart(JMSService.java:209)
>         at 
> org.wildfly.extension.messaging.activemq.jms.JMSService.access$000(JMSService.java:64)
>         at 
> org.wildfly.extension.messaging.activemq.jms.JMSService$1.run(JMSService.java:99)
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at 
> org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1979)
>         at 
> org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1481)
>         at 
> org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1348)
>         at java.lang.Thread.run(Thread.java:745)
>         at org.jboss.threads.JBossThread.run(JBossThread.java:485)
> Caused by: java.lang.IncompatibleClassChangeError: Class 
> org.apache.activemq.artemis.utils.actors.OrderedExecutorFactory does not 
> implement the requested interface 
> org.apache.activemq.artemis.utils.ExecutorFactory
>         at 
> org.apache.activemq.artemis.core.persistence.impl.journal.AbstractJournalStorageManager.<init>(AbstractJournalStorageManager.java:222)
>         at 
> org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.<init>(JournalStorageManager.java:106)
>         at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.createStorageManager(ActiveMQServerImpl.java:2151)
>         at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart1(ActiveMQServerImpl.java:2287)
>         at 
> org.apache.activemq.artemis.core.server.impl.LiveOnlyActivation.run(LiveOnlyActivation.java:63)
>         at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.internalStart(ActiveMQServerImpl.java:522)
>         at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.start(ActiveMQServerImpl.java:461)
>         at 
> org.apache.activemq.artemis.jms.server.impl.JMSServerManagerImpl.start(JMSServerManagerImpl.java:392)
>         at 
> org.wildfly.extension.messaging.activemq.jms.JMSService.doStart(JMSService.java:205)
>         ... 9 more
> {code}
> This happens because the ActiveMQServerImpl is referencing the 
> ExecutorFactory class from artemis-server jar while the 
> OrderedExecutorFactory class is referencing the ExecutorFactory class from 
> artemis-commons.



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