Boa tarde , estou migrando um projeto pro cloud do google e tenho alguns serviços Rest rodando só que estou recebendo a seguinte exception quando tento deserializar um objeto vindo de outro server
java.lang.NoClassDefFoundError: sun.reflect.ReflectionFactory is a restricted class. Please see the Google App Engine developer's guide for more details.
at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
at com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider.getLazyRefectionFactory(Sun14ReflectionProvider.java:105)
at com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider.getMungedConstructor(Sun14ReflectionProvider.java:97)
at com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider.newInstance(Sun14ReflectionProvider.java:76)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.instantiateNewInstance(AbstractReflectionConverter.java:313)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:162)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:965)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:950)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:893)
at br.com.caelum.vraptor.deserialization.XStreamXMLDeserializer.deserialize(XStreamXMLDeserializer.java:58)
O único reflection provider que o GAE suporta para o Xstream é o PureJavaReflectionProvider e o XStream usa acho por default o Sun14ReflectionProvider , como faço pra trocar o provider padrao , tentei extender br.com.caelum.vraptor.deserialization.XStreamXMLDeserializer mas nao vi modo de sobrescrever esse parametro , sofri o mesmo problema com o restfulie na hora de enviar o xml serializado ai tive que baixar o projeto e trocar o provider pra funcionar tb (até mandei o pull request pra suportar rodar o restfulie no GAE) . Há algum modo de fazer isso atraves de componente ou isso esta fixado nas entranhas do vraptor ??