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https://issues.apache.org/jira/browse/OPENJPA-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi P Palacherla updated OPENJPA-1407:
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Attachment: OPENJPA-1407-trunk.patch
> 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: 2.0.0-M3
> Reporter: Ravi P Palacherla
> Assignee: Ravi P Palacherla
> Fix For: 2.0.0-M3
>
> Attachments: OPENJPA-1407-trunk.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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