PCEnhancer does not find meta data for entities using annotations
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Key: OPENJPA-1891
URL: https://issues.apache.org/jira/browse/OPENJPA-1891
Project: OpenJPA
Issue Type: Bug
Components: Enhance
Affects Versions: 1.2.2
Environment: Windows XP SP2
Spring 2.5.6
Tomcat 6.0.28
Reporter: Xavi Arias
Priority: Minor
The problem comes while enhancing entities at runtime by the Spring load time
weaver mechanism.
Spring load time weaver is configured with
"org.springframework.instrument.classloading.ReflectiveLoadTimeWeaver" and
Tomcat webapp class loader with
"org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader".
Everything works without any exception, but the enhancer does not find any
entity meta data. The log message for every entity is the following:
18:09:24,431 WARN openjpa.Enhance - Type "class model.Contact" has no
metadata; enhancing as persistence aware. If you intended for "class
com.rhodia.interactive.domain.model.profile.MyFavorite" to be
persistence-capable, then this means that OpenJPA could not find any metadata
for "class com.rhodia.interactive.domain.model.profile.MyFavorite". This can
happen if the directory containing your metadata is not in your CLASSPATH, or
if your metadata files are not named properly. See the documentation on
metadata placement for more information.
After debugging, that the problem seems to come from the method
parseClassAnnotations in AnnotationPersistenceMetaDataParser. The call to
J2DoPriv5Helper.isAnnotationPresentAction(_cls, Entity.class) always return
false, while the class is actually annotated as an entity. This is because the
javax.persistence.Entity class passed as parameter is not the same as the one
in the entity class annotation map, so the subsequent call to
getAnnotation(Entity.class) always returns null.
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