我使用Motomapia作为参考应用引擎应用来使用Objectify 4.0rc1。
部署应用程序并发送通过调用
保存用户的请求ofy().save().entity(newUser).now();
失败时出现以下异常
com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException: The exception contained within MappableContainerException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NoSuchMethodError: com.google.appengine.api.datastore.Key.getAppIdNamespace()Lcom/google/appengine/api/datastore/AppIdNamespace;
at com.google.appengine.api.datastore.KeyTranslator.convertToPb(KeyTranslator.java:49)
at com.google.appengine.api.datastore.EntityTranslator.convertToPb(EntityTranslator.java:50)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl.doBatchPutBySize(AsyncDatastoreServiceImpl.java:532)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl.doIndexedEntityBatchPutBySize(AsyncDatastoreServiceImpl.java:629)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl.put(AsyncDatastoreServiceImpl.java:464)
at com.googlecode.objectify.cache.CachingAsyncDatastoreService.put(CachingAsyncDatastoreService.java:415)
at com.googlecode.objectify.impl.WriteEngine.save(WriteEngine.java:79)
at com.googlecode.objectify.impl.SaverImpl.entities(SaverImpl.java:60)
at com.googlecode.objectify.impl.SaverImpl.entity(SaverImpl.java:35)
at com.xxxx.controller.user.RegisterController.index(RegisterController.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:45)
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)
答案 0 :(得分：1)
更新到App Engine SDK 1.8.4应解决此问题。
答案 1 :(得分：0)
我发现Objectify的4.0rc1存在同样的问题。恢复到4.0b3解决了这个问题，虽然不是理想的解决方案。