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From "Yunseong Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (REEF-968) Handle RequiredParameter set to null
Date Tue, 19 Jul 2016 11:38:20 GMT

     [ https://issues.apache.org/jira/browse/REEF-968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yunseong Lee updated REEF-968:
------------------------------
    Assignee: minhyeok kweun

> Handle RequiredParameter set to null
> ------------------------------------
>
>                 Key: REEF-968
>                 URL: https://issues.apache.org/jira/browse/REEF-968
>             Project: REEF
>          Issue Type: Sub-task
>          Components: Tang
>            Reporter: Sergey Dudoladov
>            Assignee: minhyeok kweun
>
> Attempt to set a {{RequiredParameter}}  to null should probably use a default value if
available or throw a meaningful exception.
> To reproduce, see [the comment to REEF-932 | https://issues.apache.org/jira/browse/REEF-932?focusedCommentId=15009618&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15009618]
> I modified that patch to include the default value for 
> {code}
> @NamedParameter(default_value = "abc")
>   class FooStringness implements Name<String> {
>   }
> {code}
>  but that code also throws {{IllegalStateException}}. 
> We probably should use the default value instead and log (a) the warning that the {{RequiredParameter}}
is set to null (b) the default we use.



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