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https://issues.apache.org/jira/browse/QPID-7358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lorenz Quack closed QPID-7358.
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Resolution: Duplicate
> [Java Broker] forbid the same state transition to be defined more than once
> ---------------------------------------------------------------------------
>
> Key: QPID-7358
> URL: https://issues.apache.org/jira/browse/QPID-7358
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: qpid-java-6.0, qpid-java-6.1, qpid-java-6.0.5
> Reporter: Lorenz Quack
>
> Currently if we define a state transition more than once, only one will be
> used and the others will be silently discarded. For example on
> {{AbstractVirtualHost}} the state transition {{ERRORED -> ACTIVE}} is defined
> twice:
> {code}@StateTransition(currentState = {State.UNINITIALIZED, State.ERRORED},
> desiredState = State.ACTIVE)
> private ListenableFuture<Void> onActivate()
> {...}
> @StateTransition( currentState = { State.STOPPED, State.ERRORED },
> desiredState = State.ACTIVE )
> private ListenableFuture<Void> onRestart()
> {...}{code}
> The relevant code that does the discarding is
> {{ConfiguredObjectTypeRegistry#addStateTransitions}} and
> {{ConfiguredObjectTypeRegistry#addStateTransition}}.
> I would argue that this should be a compilation error.
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