[Artemis 2.x upgrade] libAIO does not get loaded on RHEL 6 x86_64

[hudson@rhel6-large-2723 bin]$ sh standalone.sh -c standalone-full-ha.xml -Djboss.socket.binding.port-offset=1000
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  JBoss Bootstrap Environment

  JBOSS_HOME: /tmp/jboss-eap

  JAVA: java

  JAVA_OPTS:  -server -Xms64m -Xmx512m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true

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10:14:31,918 INFO  [org.wildfly.extension.messaging-activemq] (MSC service thread 1-1) WFLYMSGAMQ0075: AIO wasn't located on this platform, it will fall back to using pure Java NIO. Your platform is Linux, install LibAIO to enable the AIO journal and achieve optimal performance.
10:14:32,017 INFO  [org.apache.activemq.artemis.core.server] (ServerService Thread Pool -- 75) AMQ221000: live Message Broker is starting with configuration Broker Configuration (clustered=true,journalDirectory=/tmp/jboss-eap/standalone/data/activemq/journal,bindingsDirectory=/tmp/jboss-eap/standalone/data/activemq/bindings,largeMessagesDirectory=/tmp/jboss-eap/standalone/data/activemq/largemessages,pagingDirectory=/tmp/jboss-eap/standalone/data/activemq/paging)
10:14:32,110 INFO  [org.apache.activemq.artemis.core.server] (ServerService Thread Pool -- 75) AMQ221013: Using NIO Journal
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