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https://issues.apache.org/jira/browse/OPENJPA-2239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vermeulen updated OPENJPA-2239:
-------------------------------
Attachment: OrderLineRemovalBugTest.java
OrderLine.java
Order.java
Entities and test case which show the bug.
> removing from one List<X> removes all from other List<X> in same entity
> -----------------------------------------------------------------------
>
> Key: OPENJPA-2239
> URL: https://issues.apache.org/jira/browse/OPENJPA-2239
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 2.1.1
> Reporter: Vermeulen
> Attachments: Order.java, OrderLine.java, OrderLineRemovalBugTest.java
>
>
> I have an Order entity that has two separate lists of OrderLine entities:
> ...
> @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
> private List<OrderLine> plannedOrderLines = new ArrayList<OrderLine>();
> @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
> private List<OrderLine> actualOrderLines = new ArrayList<OrderLine>();
> ...
> I remove a single element from actualOrderLines, then merge the entity and
> close the entity manager. When I find the entity again with a different
> entity manager, the plannedOrderLines list is empty.
> OpenJPA generates one join table that contains entries for both lists. I used
> this configuration for a long time and it seems to work fine except for this
> bug. I verified in the database that the entries for planned order lines are
> all removed from the join table.
> Workaround: use @JoinTable or @JoinColumn annotation so that both lists do
> not map to the same join table.
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