Class not found defined in dbObj exception in OSGI

[Maarten]

Hi,

I'm trying to load some results from morphia, but outside the OSGI
container my tests run fine, but within it fails. I have the following
code:

myMorphia.map(ConfigurationEntity.class)
.map(GroupEntity.class)
.map(ObjectEntity.class)
.map(StructureEntity.class);

List<ConfigurationEntity> configurationEntityList =
myDataStore.find(ConfigurationEntity.class).asList();

I've tried 0.99 and the latest revision from the svn repository.

The stack trace is as follows:

WARNING: Class not found defined in dbObj:
java.lang.ClassNotFoundException: entity.ConfigurationEntity
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1516)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1361)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at
com.google.code.morphia.mapping.DefaultCreator.getClass(DefaultCreator.java:
84)
at
com.google.code.morphia.mapping.DefaultCreator.createInstance(DefaultCreator.java:
38)
at com.google.code.morphia.mapping.Mapper.fromDBObject(Mapper.java:
273)
at
com.google.code.morphia.query.MorphiaIterator.convertItem(MorphiaIterator.java:
66)
at
com.google.code.morphia.query.MorphiaIterator.processItem(MorphiaIterator.java:
53)
at
com.google.code.morphia.query.MorphiaIterator.next(MorphiaIterator.java:
48)
at com.google.code.morphia.query.QueryImpl.asList(QueryImpl.java:264)

I hope anyone can shed some on it.

Regards,

Maarten

[Scott Hernandez]

What version are you using? You would have to do something like this:
http://code.google.com/p/morphia/issues/detail?id=208

[Maarten]

I'm using the latest SVN trunk. Last checkout time was an hour ago.
I've looked at that issue, but it looks resolved in the current trunk.
Still, I'm getting those errors.

I forgot to mention that the morphia jar is not deployed as a bundle,
but it is included in the same bundle as the code in question.

[Scott Hernandez]

Are you overriding getClassLoaderPerClass in your ObjectFactory like
this (as shown in the issue)?

morphia.getMapper().getOptions().setObjectFactory(new DefaultCreator() {
@Override
protected ClassLoader getClassLoaderForClass(String
clazz, DBObject object) {
// we're the only bundle for now using Morphia so
we can be sure that in any case
// the classloader of this bundle has to be used
return MongoBundleActivator.getBundleClassLoader();
}
});

[Maarten]

I just changed the following line in
com.google.code.morphia.mapping.DefaultCreator:

line 83:
try {
c = Class.forName(className);
} catch (ClassNotFoundException e) {

It was : c = Class.forName(className, true,
getClassLoaderForClass(className, dbObj));

getClassLoaderForClass only calls :
Thread.currentThread().getContextClassLoader();

This breaks the class loading in my Felix OSGI environment, so it
looks like this class loader is the problem. I'm not sure why, any
ideas?

[Maarten]

Many thanks! This works and for some reason I missed that part from
the ticket. This completely solves the problem.

Regards,

Maarten