[jira] [Created] (GORA-389) MongoStore: Document or List mapping change cause NPE in clearDirty()

["Damien Raude-Morvan (JIRA)" <ji...@apache.org>]

Damien Raude-Morvan created GORA-389:
----------------------------------------

             Summary: MongoStore: Document or List mapping change cause NPE in clearDirty()
                 Key: GORA-389
                 URL: https://issues.apache.org/jira/browse/GORA-389
             Project: Apache Gora
          Issue Type: Bug
          Components: gora-mongodb
    Affects Versions: 0.5
            Reporter: Damien Raude-Morvan


I've found an issue in current implementation of MongoStore on [Document or List|http://gora.apache.org/current/gora-mongodb.html] mapping type handling.

If your schema contains a field like this :
{noformat}
{ "name": "keywords",
   "type": { "type": "array", "items": "string"},
   "default": null
}
{noformat}
If you choose to latter defaults to an empty array instead of null value like this
{noformat}
{ "name": "keywords",
   "type": { "type": "array", "items": "string"},
   "default": []
}
{noformat}
loading old data will fail because of clearDirty method will try to also clear a null object.
{code}
persistent.clearDirty();
{code}

I implemented and tested a fix which always return a DirtyListWrapper or DirtyMapWrapper instead of previous null value.



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