org.apache.openjpa.meta.ClassMetaData.validateAppIdClass() does not take
@MappedSuperclass into account
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Key: OPENJPA-386
URL: https://issues.apache.org/jira/browse/OPENJPA-386
Project: OpenJPA
Issue Type: Bug
Components: kernel
Affects Versions: 1.0.0, 0.9.7
Environment: BEA WebLogic 10.0 under Windows XP SP1
Reporter: Matthew L. Schwickerath
We have a @MappedSuperclass that is the base for all of our entity bean
classes. This class contains the @Version (and @Column for the version field)
that all of our entity beans use. But, in ClassMetaData.validateAppIdClass(),
if an entity bean class has a superclass, and the entity bean has an @IdClass,
it expects that superclass to have an @IdClass also. All of our entity beans
have an @IdClass (even if they only have a single part key), but our
@MappedSuperclass does not have an @IdClass. This scenario works under JBoss
4.2.0 and Sun AS 9, but produces a NullPointerException in OpenJPA at:
if (_super != null) {
// concrete superclass oids must match or be parent of ours
ClassMetaData sup = getPCSuperclassMetaData();
if (!sup.getObjectIdType().isAssignableFrom(_objectId)) // <---
NullPointerException here
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