Agent fails to send availability report to JON Server due to a concurrent.TimeoutException

ERROR [InventoryManager.availability-1] (enterprise.communications.command.client.ClientCommandSenderTask)- {ClientCommandSenderTask.send-failed}Failed to send command [Command: type=[remotepojo]; cmd-in-response=[false]; config=[{rhq.agent-name=myagent.domain.com, rhq.security-token=5436789014560-2334767890-479946235115288123, rhq.send-throttle=true}]; params=[{targetInterfaceName=org.rhq.core.clientapi.server.discovery.DiscoveryServerService, invocation=NameBasedInvocation[mergeAvailabilityReport]}]]. Cause: java.util.concurrent.TimeoutException:null. Cause: java.util.concurrent.TimeoutException
WARN  [InventoryManager.availability-1] (rhq.core.pc.inventory.InventoryManager)- Could not transmit availability report to server
java.lang.reflect.UndeclaredThrowableException
       at $Proxy3.mergeAvailabilityReport(Unknown Source)
       at org.rhq.core.pc.inventory.InventoryManager.handleReport(InventoryManager.java:656)
       at org.rhq.core.pc.inventory.AvailabilityExecutor.run(AvailabilityExecutor.java:71)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)
       at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:280)
       at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135)
       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:65)
       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:142)
       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:166)
       at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
       at java.lang.Thread.run(Thread.java:595)
Caused by: java.util.concurrent.TimeoutException
       at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:211)
       at java.util.concurrent.FutureTask.get(FutureTask.java:85)
       at org.rhq.enterprise.communications.command.client.ClientCommandSenderTask.run(ClientCommandSenderTask.java:143)
       at org.rhq.enterprise.communications.command.client.ClientCommandSender.sendSynch(ClientCommandSender.java:617)
       at org.rhq.enterprise.communications.command.client.ClientRemotePojoFactory$RemotePojoProxyHandler.invoke(ClientRemotePojoFactory.java:407)
       ... 12 more