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https://issues.apache.org/jira/browse/OPENJPA-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790990#action_12790990
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Ravi P Palacherla commented on OPENJPA-1407:
--------------------------------------------
Right now only Kodo has issues with current code. Kodo uses 1.1.x branch and
not the trunk.
As there are no other persistence providers that has this issue other than
kodo, I think it is safe to ignore this patch on trunk.
Regards,
Ravi.
> ClassCastException at DataCacheStoreManager.loadAll
> ---------------------------------------------------
>
> Key: OPENJPA-1407
> URL: https://issues.apache.org/jira/browse/OPENJPA-1407
> Project: OpenJPA
> Issue Type: Bug
> Components: datacache
> Affects Versions: 1.1.1
> Reporter: Ravi P Palacherla
> Assignee: Ravi P Palacherla
> Attachments: OPENJPA-1407-1.1.x.patch
>
>
> the following exception stack trace is seen in kodo :
> [java] Caused by: java.lang.ClassCastException: com.sample.TestTableId
> [java] at
> org.apache.openjpa.datacache.DataCacheStoreManager.loadAll(DataCacheStoreManager.java:461)
> [java] at
> org.apache.openjpa.kernel.DelegatingStoreManager.loadAll(DelegatingStoreManager.java:121)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.findAll(BrokerImpl.java:984)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.findAll(BrokerImpl.java:1027)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.findAll(BrokerImpl.java:913)
> [java] at
> org.apache.openjpa.kernel.AbstractPCData.toRelationFields(AbstractPCData.java:217)
> [java] at
> org.apache.openjpa.kernel.AbstractPCData.toNestedFields(AbstractPCData.java:184)
> [java] at
> org.apache.openjpa.kernel.AbstractPCData.toField(AbstractPCData.java:78)
> [java] at
> org.apache.openjpa.kernel.PCDataImpl.loadField(PCDataImpl.java:197)
> [java] at org.apache.openjpa.kernel.PCDataImpl.load(PCDataImpl.java:147)
> [java] at
> org.apache.openjpa.datacache.DataCacheStoreManager.initialize(DataCacheStoreManager.java:343)
> [java] at
> org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111)
> [java] at
> org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:894)
> [java] at kodo.kernel.KodoBroker.initialize(KodoBroker.java:65)
> Reason behind the above exception is because when application identity class
> is used;
> In openJPA, ObjectId is generated by enhancer generated method
> pcnewObjectIdInstance and it returns wrapped identity class
> like as follows.
> public Object pcNewObjectIdInstance()
> {
> return new ObjectId(ApplicationIdentityIdClass.class, new AppId());
> }
> So, the change was not affected to OpenJPA code.
> However, in OpenJPA derived products like Kodo, pcNewObjectIdInstance
> returns raw application identity class instance.
> Due to this "oidList.add((OpenJPAId) sm.getObjectId())" throws classcast
> exception.
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