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Posted to dev@falcon.apache.org by "Ying Zheng (JIRA)" <ji...@apache.org> on 2016/07/12 00:22:11 UTC

[jira] [Created] (FALCON-2073) Handle with NULL corner case

Ying Zheng created FALCON-2073:
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             Summary: Handle with NULL corner case
                 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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