On Feb 27, 2007, at 4:37 PM, Lasantha Ranaweera wrote:
BTW as a solution I changed the given lines in EntityMapLoader
class, then
it goes bit further and failed in Visitor classes again.
ClassLoader loader = context.getTempClassLoader(); //caynne
existing one
ClassLoader loader = persistenceUnit.getClassLoader(); //my
soultion since
We can't use the unit main ClassLoader at the point of loading the
annotations, as annotations processing predates class enhancement,
and we can't pollute the main class loader with unenhanced classes.
Caused by: java.lang.NullPointerException
at
org.apache.cayenne.jpa.conf.ClassAnnotationProcessorFactory
$EntityProcessor.onStartElement
(ClassAnnotationProcessorFactory.java:85)
at
org.apache.cayenne.jpa.conf.EntityMapAnnotationLoader.loadClassMapping
(EntityMapAnnotationLoader.java:202)
at
org.apache.cayenne.jpa.conf.EntityMapLoader.loadFromAnnotations
(EntityMapLoader.java:195)
at
org.apache.cayenne.jpa.conf.EntityMapLoader.loadEntityMap
(EntityMapLoader.java:97)
... 28 more
I assume there is a line mismatch, and the NPE is really at line 84,
so "element.getAnnotation(Entity.class)" returns null:
public void onStartElement(
AnnotatedElement element,
AnnotationProcessorStack context) {
Entity entityAnnotation = element.getAnnotation
(Entity.class);
JpaEntity entity = new JpaEntity();
entity.setClassName(((Class) element).getName());
entity.setAttributes(new JpaAttributes());
if (!Util.isEmptyString(entityAnnotation.name()))
{ // LINE 84
entity.setName(entityAnnotation.name
()); // LINE 85
}
context.push(entity);
}
OpenEJB TemporaryClassLoader has this code that I suspect may causes
this error?? (I can't confirm it - it works in my OpenEJB integration
test environment):
// Annotation classes must be loaded by the normal classloader
if (isAnnotationClass(bytes)) {
return Class.forName(name, resolve, getClass
().getClassLoader());
}
While the bug may still be on Cayenne end, I wonder if Dain or
somebody else from Geronimo can comment on this?
Andrus
