[ https://issues.jboss.org/browse/ARQ-2166?page=com.atlassian.jira.plugin.s... ] Radoslav Husar updated ARQ-2166: -------------------------------- Description: The use case for using multiple threads is to for instance start containers or deployments concurrently, which could be employed to speed up a testsuites using multiple containers where the tests control their lifecycle using container controller. The root cause of the issue is that ARQ is using ThreadLocal for storing the context. An example call stack would be the following: {noformat} org.jboss.arquillian.core.spi.context.AbstractContext#activeStore org.jboss.arquillian.core.impl.ManagerImpl#resolveActiveContexts org.jboss.arquillian.core.impl.ManagerImpl#resolve org.jboss.arquillian.core.impl.InstanceImpl#get org.jboss.arquillian.container.test.impl.client.container.ClientContainerController#start(java.lang.String) {noformat} and example stack trace, trying to use container controller from a different thread would be: {noformat} java.lang.IllegalArgumentException: No container registry in context at org.jboss.arquillian.container.test.impl.client.container.ClientContainerController.isStarted(ClientContainerController.java:216) at org.jboss.as.test.clustering.NodeUtil.start(NodeUtil.java:104) at org.jboss.as.test.clustering.NodeUtil.lambda$start$1(NodeUtil.java:85) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {noformat} was: The use case for using multiple threads is to for instance start containers or deployments concurrently, which could be employed to speed up a testsuites using multiple containers where the tests control their lifecycle using container controller. This is because ARQ is using ThreadLocal for storing the context. An example call stack would be the following: {noformat} org.jboss.arquillian.core.spi.context.AbstractContext#activeStore org.jboss.arquillian.core.impl.ManagerImpl#resolveActiveContexts org.jboss.arquillian.core.impl.ManagerImpl#resolve org.jboss.arquillian.core.impl.InstanceImpl#get org.jboss.arquillian.container.test.impl.client.container.ClientContainerController#start(java.lang.String) {noformat} and example stack trace, trying to use container controller from a different thread would be: {noformat} java.lang.IllegalArgumentException: No container registry in context at org.jboss.arquillian.container.test.impl.client.container.ClientContainerController.isStarted(ClientContainerController.java:216) at org.jboss.as.test.clustering.NodeUtil.start(NodeUtil.java:104) at org.jboss.as.test.clustering.NodeUtil.lambda$start$1(NodeUtil.java:85) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {noformat} -- This message was sent by Atlassian JIRA (v7.5.0#75005)