When an unchecked exception is thrown in an FSM action method, the FSMs on the call path will aggregate the current status of each FSM in an FSMExecutionException
.
This information is useful for debugging runtime issues in FSM-based Rhino services.
The following exception was generated by a modified version of the multifsmsbb
example provide in the FSM Tool examples:
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com.opencloud.sce.fsmtool.FSMExecutionException:
FSM = TimerFSM
previous state = waitForTimerExpiry
current state = notifyExpiry
action = notifyOnTimerExpiry(entry)
input register = InputRegister[scheduled=[], execution=[local_timerExpiry]]
endpoints = Endpoints[Endpoint[local,aci=[set,sbb-not-attached]],Endpoint[timer]]
--------------------------------------------------
FSM = MessageFSM
previous state = waitForTimer
current state = sendResponse
action = sendResponseOnTimerExpiry(entry)
input register = InputRegister[scheduled=[], execution=[timer_timerExpiry]]
endpoints = Endpoints[Endpoint[local],Endpoint[tcp,aci=[set,sbb-attached]],Endpoint[timer]]
--------------------------------------------------
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.execute(MessageFSM.java:140)
at com.opencloud.slee.services.fsmtool.multifsmsbb.FsmToolMultiFsmExampleSbb$2.timerExpired(FsmToolMultiFsmExampleSbb.java:68)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSMActionsImpl.notifyOnTimerExpiryAction(TimerFSMActionsImpl.java:63)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM$Action$2.execute(TimerFSM.java:399)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM.executeAction(TimerFSM.java:251)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM.access$1000(TimerFSM.java:39)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM$3.executeEntryActions(TimerFSM.java:619)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM$3.executeEntryActions(TimerFSM.java:600)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM.executeFsm(TimerFSM.java:211)
at com.opencloud.slee.services.fsmtool.multifsmsbb.TimerFSM.execute(TimerFSM.java:125)
at com.opencloud.slee.services.fsmtool.multifsmsbb.FsmToolMultiFsmExampleSbb.onTimerEvent(FsmToolMultiFsmExampleSbb.java:122)
at com.opencloud.rhino.deployed.sbb.OpenCloud.multifsmsbb_sbb_1_1.SbbOCBBBean.sbbDeliverEvent(SbbOCBBBean.java:327)
at com.opencloud.deployed.Service_multifsmsbb_OpenCloud_1_1_2.SBB_multifsmsbb_sbb_OpenCloud_1_1OCBB_Local.sbbDeliverEvent(SBB_multifsmsbb_sbb_OpenCloud_1_1OCBB_Local.java:1122)
... 7 more
Caused by: java.lang.IllegalStateException: Transition Action Error
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.executeAction(MessageFSM.java:272)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.access$900(MessageFSM.java:39)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM$3.executeEntryActions(MessageFSM.java:670)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM$3.executeEntryActions(MessageFSM.java:651)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.executeFsm(MessageFSM.java:211)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.execute(MessageFSM.java:125)
... 19 more
Caused by: java.lang.IllegalArgumentException: Intentional exception
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSMActionsImpl.sendResponseOnTimerExpiryAction(MessageFSMActionsImpl.java:68)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM$Action$3.execute(MessageFSM.java:434)
at com.opencloud.slee.services.fsmtool.multifsmsbb.MessageFSM.executeAction(MessageFSM.java:251)
... 24 more