Question

我们最近更新到AppEngine SDK 1.9.17。当我尝试运行JUnit测试时，每次尝试使用JDO访问数据存储区时都会出错。具体来说，我得到的错误是：

java.lang.NoSuchMethodError: com.google.appengine.repackaged.com.google.io.protocol.ProtocolMessage.storeStringsOnlyAsBytes()Z
at com.google.storage.onestore.v3.OnestoreEntity$Reference.setApp(OnestoreEntity.java:6598)
at com.google.appengine.api.datastore.KeyTranslator.convertToPb(KeyTranslator.java:50)
at com.google.appengine.api.datastore.EntityTranslator.convertToPb(EntityTranslator.java:48)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl$4.toPb(AsyncDatastoreServiceImpl.java:178)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl$4.toPb(AsyncDatastoreServiceImpl.java:155)
at com.google.appengine.api.datastore.Batcher$BatchIterator.<init>(Batcher.java:180)
at com.google.appengine.api.datastore.Batcher$2.<init>(Batcher.java:317)
at com.google.appengine.api.datastore.Batcher.getBatches(Batcher.java:317)
at com.google.appengine.api.datastore.AsyncDatastoreServiceImpl.doBatchPut(AsyncDatastoreServiceImpl.java:365)
at com.google.appengine.api.datastore.BaseAsyncDatastoreServiceImpl.put(BaseAsyncDatastoreServiceImpl.java:293)
at com.google.appengine.api.datastore.BaseAsyncDatastoreServiceImpl$4.runInternal(BaseAsyncDatastoreServiceImpl.java:261)
at com.google.appengine.api.datastore.TransactionRunner.runWriteInTransaction(TransactionRunner.java:53)
at com.google.appengine.api.datastore.BaseAsyncDatastoreServiceImpl.put(BaseAsyncDatastoreServiceImpl.java:258)
at com.google.appengine.api.datastore.BaseAsyncDatastoreServiceImpl.put(BaseAsyncDatastoreServiceImpl.java:234)
at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServiceImpl.java:56)
at com.google.appengine.datanucleus.WrappedDatastoreService.put(WrappedDatastoreService.java:100)
at com.google.appengine.datanucleus.EntityUtils.putEntitiesIntoDatastore(EntityUtils.java:759)
at com.google.appengine.datanucleus.DatastorePersistenceHandler.insertObjectsInternal(DatastorePersistenceHandler.java:314)
at com.google.appengine.datanucleus.DatastorePersistenceHandler.insertObject(DatastorePersistenceHandler.java:218)
at org.datanucleus.state.JDOStateManager.internalMakePersistent(JDOStateManager.java:2381)
at org.datanucleus.state.JDOStateManager.makePersistent(JDOStateManager.java:2357)
at org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1896)
at org.datanucleus.ObjectManagerImpl.persistObjectWork(ObjectManagerImpl.java:1745)
at org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:1602)
at org.datanucleus.api.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:731)
at org.datanucleus.api.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:756)
...

我打开了一些通常依赖的jar，并且重新打包的com.google.io包完全丢失了。

我尝试过的事情：

更新了我的JUnit测试的类路径，从1.9.14到1.9.17
尝试在lib / impl目录中添加额外的google_sql.jar
删除所有lib / impl jar，然后一次添加一个

还有其他人遇到过这个吗？

Answer 1

啊哈哈！作为JUnit和AppEngine的documentation的一部分，您必须将两个文件复制到项目的WEB-INF / lib目录中。

appengine-api-labs.jar
appengine-testing.jar

升级时，您不仅需要在Eclipse中更新JUnit Debug Configuration，还必须从更高版本的SDK更新（复制/覆盖）这两个文件。

升级到SDK 1.9.17后JUnit测试失败

1 个答案: