About merge

81-90 of 108Refresh
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Best practice: Database update/migration of embedded databases in products

changes - for renaming packages, classes and fields. The scenario in your post, of merging
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ClassCastException of same object type

that particular copy? That might be the reason. Try merging the two plugins to one plugin to see if it helps
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com.objectdb.o.InternalException: java.lang.ArrayIndexOutOfBoundsException: null:

.addOwnedElement(ownedElement); // if (ok) { // em.merge(owner
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Complex Schema Upgrade not working

" have been merged into the member.Member class - The member.Member class is now the address.Address class
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Entity listener - event instead of object

). You may create a copy of that object (maybe by JPA's detach + merge or by JDO's detachCopy
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Exception on query

. It will be merged with issue #1080, which according to the stack trace represents the same problem. PG
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Foreign key constraint issue

    private long id;     @OneToMany(cascade = {CascadeType.MERGE, CascadeType.REMOVE}, mappedBy
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Help understanding Entity behavior with JPA

with the IDs they are not managed. You can get the single managed entity of that ID by using find or merge. Non
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Is it possible to remove parent/child entities without refresh?

= { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH })   private ParentEntity parent
Issue
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javax.jdo.JDONullIdentityException: The identity must not be null.

When stopping my JEE 6 Web Profile application in Glassfish 3.1.1, I sometimes get this exception, yielding in not merging athene.odb and athene.odb$. A bug in objectdb?    bjjl@ps2:~$ ls -l /var/db/athene/ total 122080 -rw-r--r-- 1 bjjl webservd   2621440 2012-05-24 16:40 athene.odb -rw-r--r-- 1