Dozer Eclipse plugin doest not resolve the maven dependencies classpath.
This result to errors like "Class *** not found." and "Property *** for *** cannot be read from." as it cannot use the classes in maven classpath to validate dozer XML files.
This is a classic issue when model classes are defined in a particular maven module, and specific mapping files in one other module.
Note that it does not work either with manual related projects configuration in "Java Build Path > Projects".