I am trying to use an Ice client in an OSGi context. Running the server and a minimal example client in a non-OSGi environment works fine. With the client in an OSGi environment I get the following exception:
com.zeroc.Ice.NoValueFactoryException
reason = "no value factory found and compact format prevents slicing (the sender should use the sliced format instead)"
type = "::MyModule::Knowledge::CMKnowledge"
However, I am not 100% sure, if the OSGi runtime makes a difference here. The Slice file looks like this:
module MyModule{
module Knowledge{
class KnowledgePart{
string value;
}
class FMKnowledge extends KnowledgePart{}
class CMKnowledge extends KnowledgePart{}
interface IKnowledge{
void sendKnowledge(KnowledgePart knowledge);
FMKnowledge getFMKnowledge();
CMKnowledge getCMKnowledge();
}
}
}
What does this exception mean in this context and how can I fix it? I already tried to set ["format:sliced"] instead of the implicitly used compact format.
The error mean that Ice run-time try to load MyModule.Knowledge.CMKnowledge
class but it failed to do so. You must ensure that the class loader used by the application can load MyModule.Knowledge.CMKnowledge
class.
See also https://doc.zeroc.com/ice/3.7/language-mappings/java-mapping/custom-class-loaders