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From "Ying Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FALCON-2073) Handle with NULL corner cases
Date Tue, 12 Jul 2016 22:32:20 GMT

     [ https://issues.apache.org/jira/browse/FALCON-2073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ying Zheng updated FALCON-2073:
-------------------------------
    Summary: Handle with NULL corner cases  (was: Handle with NULL corner case)

> Handle with NULL corner cases
> -----------------------------
>
>                 Key: FALCON-2073
>                 URL: https://issues.apache.org/jira/browse/FALCON-2073
>             Project: Falcon
>          Issue Type: Bug
>            Reporter: Ying Zheng
>            Assignee: Ying Zheng
>
> Coverity scan finds quite a few places where the return value of an object could be NULL
but Falcon tries to access its member without handling with the corner NULL case. For example,
in OozieWorkflowEngine::updateDependents, we will run into an error if there is no dependency
edge for the oldEntity:
> {code}
>         Set<Entity> affectedEntities = EntityGraph.get().getDependents(oldEntity);
>         for (Entity affectedEntity : affectedEntities) {
>                  ......
>         }
> {code}



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