[
https://issues.apache.org/jira/browse/CAY-1725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aaron Andersen updated CAY-1725:
--------------------------------
Attachment: cayenne.xml
KeysMap.map.xml
KeysDomainNode.driver.xml
The Cayenne configuration files used to create the database and java classes.
> NullPointerException from call to removeToManyTarget
> ----------------------------------------------------
>
> Key: CAY-1725
> URL: https://issues.apache.org/jira/browse/CAY-1725
> Project: Cayenne
> Issue Type: Bug
> Components: Core Library
> Affects Versions: 3.0.1, 3.0.2
> Reporter: Aaron Andersen
> Attachments: KeysDomainNode.driver.xml, KeysMap.map.xml, cayenne.xml
>
>
> I am using Cayenne version 3.0.1.
> In CayenneModeler I have created an "Approver" DbEntity and a "Department"
> DbEntity (as well as the corresponding ObjEntity classes). I have also
> created an "Authorization" DbEntity to act as a join table for the Approver
> and Department tables. Every Approver object has a list of Department objects
> associated with it, and vice versa so in CayenneModeler I have added a
> "departmentArray" relationship to the Approver object which has "to many,
> list" semantics.
> When I use the Approver method "void addToDepartmentArray (Department)"
> everything works fine, but when I use the Approver method "void
> removeFromDepartmentArray (Department)" (which simple calls
> removeToManyTarget) a NullPointerException is thrown. A backtrace and quick
> debug tells me the null pointer exception originates from:
> org.apache.cayenne.access.DataDomainFlattenedBucket.addFlattenedDelete(DataDomainFlattenedBucket.java:82)
> The code on lines 81 and 82 of this file are as follows:
> [81] List flattenedSnapshots =
> flattenedDeleteInfo.buildJoinSnapshotsForDelete(node);
> [82] if (!flattenedSnapshots.isEmpty()) {
> Inspecting flattenedSnapshots on line 82 shows that flattenedSnapshots is
> null hence accessing the isEmpty method is causing the null pointer exception.
> I have also tested with Cayenne 3.0.2 and the same error occurs.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
