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From "Chris McCubbin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1361) VisibilityEvaluator throws NPE when passed a zero length byte array
Date Tue, 30 Apr 2013 03:24:16 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645189#comment-13645189
] 

Chris McCubbin commented on ACCUMULO-1361:
------------------------------------------

The use case you mention is exactly the one that we want to do: check visibilities against
authorizations outside of a running accumulo, the same way that accumulo would (assuming a
blank visibility default).

If there is a better way to do this than the code snippet I posted, I'd be happy to use that
instead.
                
> VisibilityEvaluator throws NPE when passed a zero length byte array
> -------------------------------------------------------------------
>
>                 Key: ACCUMULO-1361
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1361
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Chris McCubbin
>            Assignee: Corey J. Nolet
>            Priority: Minor
>             Fix For: 1.6.0
>
>
> The following code snippet throws a NPE on a fairly recent version of 1.5. I would expect
it to return true, or at the very least, to throw a meaningful exception.
> {code:title=SadPanda.java|borderStyle=solid}
> VisibilityEvaluator evaluator = new VisibilityEvaluator(new Authorizations("a".getBytes()));
> ColumnVisibility cv = new ColumnVisibility(new byte[0]);
> //The following line throws a NPE
> boolean result = evaluator.evaluate(cv);
> {code}

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