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https://issues.apache.org/jira/browse/ISIS-1599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16384759#comment-16384759
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Andi Huber commented on ISIS-1599:
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Supported (non-scalar) action parameter types are now
* Collection
* List
* Set
* SortedSet
any other (non-scalar) type will not work! We should do a check during
meta-model validation and fail early if actions do not conform!
And to clarify: we don't allow side-effects on these collections, meaning these
are all *unmodifiable*.
(Previously any action had received an ArrayList for the parameter types 'List'
or 'Collection'. Now its an unmodifiable list!)
> "Set" interface does not work as an action parameter's collection type
> -----------------------------------------------------------------------
>
> Key: ISIS-1599
> URL: https://issues.apache.org/jira/browse/ISIS-1599
> Project: Isis
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.14.0
> Reporter: Tadas Giniotis
> Assignee: Andi Huber
> Priority: Minor
> Fix For: 2.0.0-M1
>
>
> When using a Set<MyClass> as a parameter for an action -> it throws an
> exception when using that action. The same works correctly when using
> List<MyClass>.
> {quote}
> ...
> java.lang.IllegalArgumentException
> argument type mismatch
> sun.reflect.NativeMethodAccessorImpl#invoke0(null:-2)
> sun.reflect.NativeMethodAccessorImpl#invoke(null:-1)
> sun.reflect.DelegatingMethodAccessorImpl#invoke(null:-1)
> java.lang.reflect.Method#invoke(null:-1)
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#invokeMethodElseFromCache(ActionInvocationFacetForDomainEventAbstract.java:408)
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract$2#execute(ActionInvocationFacetForDomainEventAbstract.java:262)
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract$2#execute(ActionInvocationFacetForDomainEventAbstract.java:223)
> org.apache.isis.applib.services.iactn.Interaction#executeInternal(Interaction.java:173)
> org.apache.isis.applib.services.iactn.Interaction#execute(Interaction.java:143)
>
> ...
> {quote}
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