[cdi-dev] [JBoss JIRA] (CDI-577) Non-Dependent scope specified on Decorator

Mark Struberg (JIRA) issues at jboss.org
Mon Jan 4 05:52:00 EST 2016

    [ https://issues.jboss.org/browse/CDI-577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13144405#comment-13144405 ] 

Mark Struberg commented on CDI-577:

+1 for detecting this user error at startup .

> Non-Dependent scope specified on Decorator
> ------------------------------------------
>                 Key: CDI-577
>                 URL: https://issues.jboss.org/browse/CDI-577
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>          Components: Decorators
>    Affects Versions: 1.0, 1.2.Final
>            Reporter: Emily Jiang
>            Priority: Minor
> In CDI specification, there lacks a clarification about what will happen if a scope other than Dependent specified on Decorators/Interceptors. 
> At the moment, if the RequestScoped is specified on a decorator, Weld throws NPE. I talked to Martin. Martin logged https://issues.jboss.org/browse/WELD-2085 to fix this. It is better for the spec to clearly define the behaviour.
> Obviously, the lifecycle of interceptors/decorators are dependent on the bean instance they decorate. The spec should specify clearly what should happen if a scope other than Dependent is specified on decorators/interceptors. How about add the following on the spec:
> If an interceptor or decorator specifies any scope other than Dependent, the container automatically detects the problem and threats as a definition error. 

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