App Engine 1.9.18，JDO 3.1.3 java.lang.ClassCastException java.lang.Long 无法转换为 java.lang.Double
app enigine 1.9.18, JDO 3.1.3 java.lang.ClassCastException java.lang.Long cannot be cast to java.lang.Double
我在调用
时遇到了这个异常
jobInDatabase = pm.getObjectById(DAOJob.class, job.getKey());
导致以下异常
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Double
at com.eurekaapp.server.dao.mappedobjects.DAOJob.jdoReplaceField(DAOJob.java)
at com.eurekaapp.server.dao.mappedobjects.DAOJob.jdoReplaceFields(DAOJob.java)
at org.datanucleus.state.JDOStateManager.replaceFields(JDOStateManager.java:1935)
at org.datanucleus.state.JDOStateManager.replaceFields(JDOStateManager.java:1962)
at com.google.appengine.datanucleus.DatastorePersistenceHandler.fetchObject(DatastorePersistenceHandler.java:567)
at org.datanucleus.state.JDOStateManager.loadFieldsFromDatastore(JDOStateManager.java:1638)
at org.datanucleus.state.JDOStateManager.validate(JDOStateManager.java:3511)
at org.datanucleus.ObjectManagerImpl.findObject(ObjectManagerImpl.java:3379)
at org.datanucleus.api.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1722)
at org.datanucleus.api.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1740)
at com.eurekaapp.server.dao.GoogleCloud.getJob(GoogleCloud.java:712)
at com.eurekaapp.server.service.DAOServiceImpl.getJob(DAOServiceImpl.java:661)
at com.eurekaapp.server.api.client.AddJobEvent.doPost(AddJobEvent.java:55)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:254)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:527)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:444)
at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:220)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:745)
我不确定是哪个字段抛出了这个异常？
我在 obj 中有 3 个双打 -
权重 0
交货经度 0
配送纬度 0
其余数字都是多头。目前只有这一个对象会发生这种情况。
如果没有传入任何值，这些值将默认设置。展望未来，如果我将这些默认值设置为代表实际的双打，可能会纠正这个问题。
以下是导致异常发生的服务器上的一些日志：
I 12:16:05.092 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,091 DEBUG Request 6CDEEF07 class:doPost:45 - user.isParsingSuccessfull()
I 12:16:05.093 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,092 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1830 - isReceivedVersionCorrect(): starting
I 12:16:05.094 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,093 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1833 - isReceivedVersionCorrect(): try
I 12:16:05.095 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,094 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1837 - isReceivedVersionCorrect(): version correct, version[17]
I 12:16:05.096 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,095 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1846 - isReceivedVersionCorrect(): successfull true
I 12:16:05.097 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,096 DEBUG Request 6CDEEF07 class:doPost:47 - daoService.isReceivedVersionCorrect(passedJSONArray.getJSONObject(0))
I 12:16:05.098 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,097 DEBUG Request 6CDEEF07 class:doPost:49 - passedJSONArray[1]
I 12:16:05.099 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,098 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1962 - isReceivedJobEventValid(): starting
I 12:16:05.100 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,099 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1965 - isReceivedJobEventValid(): try
I 12:16:05.101 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,100 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1989 - DAOJobEvent() jobEvent.setParsingSuccessfull(true); DAOJobEvent [key=null, localID=95, jobID=5351674944159744, eventType=11, eventTime=Sun Mar 22 19:07:08 UTC 2015, latitude=53.325, longitude=-6.32569, notes=This job has been finished automatically by the phone, storedEventTime=Mon Mar 23 12:16:05 UTC 2015, companyID=6037653766012928, userID=6012377212387328, nanoTime=3020586876124620, sequence=null]
I 12:16:05.102 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,101 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1996 - DAOJobEvent() returning
I 12:16:05.103 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,102 DEBUG Request 6CDEEF07 class:getJob:706 - getJob(): starting
I 12:16:05.104 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,103 DEBUG Request 6CDEEF07 Cache:debug:58 - Level 1 Cache of type "soft" initialised
I 12:16:05.105 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,104 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object Manager "org.datanucleus.ObjectManagerImpl@1456e6b" opened for datastore "com.google.appengine.datanucleus.DatastoreManager@ba090c" with txn="org.datanucleus.TransactionImpl@1544f26"
I 12:16:05.107 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,106 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id "com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" not found in Level 1 cache [cache size = 0]
I 12:16:05.108 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,107 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id "com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" not found in Level 2 cache
I 12:16:05.109 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,108 DEBUG Request 6CDEEF07 Cache:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") added to Level 1 cache (loadedFlags="[NNNNNNNNNNNNNNNNNNNNYNNNNNNNNNNNNNNNNNNNNNNN]")
I 12:16:05.181 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,109 DEBUG Request 6CDEEF07 Lifecycle:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") has a lifecycle change : "HOLLOW"->"P_NONTRANS"
I 12:16:05.182 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,181 DEBUG Request 6CDEEF07 Connection:debug:58 - Created ManagedConnection using DatastoreService = com.google.appengine.api.datastore.DatastoreServiceImpl@191c505
I 12:16:05.183 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,182 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection added to the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.185 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,184 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection found in the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.186 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,185 DEBUG Request 6CDEEF07 Native:debug:58 - Getting entity of kind DAOJob with key DAOJob(5351674944159744)
I 12:16:05.196 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,195 DEBUG Request 6CDEEF07 Retrieve:debug:58 - Fetching object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id=5351674944159744) fields [acceptStatus,check1,check2,check3,check4,check5,collectionAddress,companyID,containerCode,customerName,customerref,deliveryLatitude,deliveryLongitude,deliveryaddress,deliverytime,enumStatus,groupID,instructions,jobType,jobTypeID,key,lastmodified,localID,notes,parsingSuccessfull,quantity1,quantity2,quantity3,quantity4,ref1,ref2,ref3,ref4,ref5,required_ItemCount,required_Note,required_POD,required_Signature,required_SignatureName,trailerCode,uniqueField,userID,vehicleCode,weight]
I 12:16:05.197 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,196 DEBUG Request 6CDEEF07 Retrieve:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="5351674944159744") being retrieved from AppEngine
I 12:16:05.199 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,197 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") is having the value in field "deliverytime" replaced by a SCO wrapper
I 12:16:05.200 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,199 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") is having the value in field "lastmodified" replaced by a SCO wrapper
I 12:16:05.201 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,200 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection found in the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc] but owner object closing so closing connection
I 12:16:05.202 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,201 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection removed from the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.203 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,202 DEBUG Request 6CDEEF07 Persistence:debug:58 - Disconnecting com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a from StateManager[pc=com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a, lifecycle=P_NONTRANS]
I 12:16:05.204 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,203 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" being removed from Level 1 cache [current cache size = 1]
I 12:16:05.205 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,204 DEBUG Request 6CDEEF07 Cache:debug:58 - Level 1 Cache cleared
I 12:16:05.206 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,205 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object Manager "org.datanucleus.ObjectManagerImpl@1456e6b" closed
-有什么建议吗？
上面的用户 Andrei Volgin 评论是正确的。
数据存储查看器字段只有 float 和 int 类型。我编辑了一个 double 值并将其存储为 Long。
我试图通过更新一个字段来重现这个问题，但最初它没有重现，因为它是从 JDO 缓存中获取原始对象。
一旦新实例在 GAE 上启动
"This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application."
并且 JDO 去退休我新更新的对象，我得到一个 java.lang.Long cannot be cast to java.lang.Double。
底线，不要使用数据存储查看器更新双精度值
我在调用
时遇到了这个异常jobInDatabase = pm.getObjectById(DAOJob.class, job.getKey());
导致以下异常
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Double
at com.eurekaapp.server.dao.mappedobjects.DAOJob.jdoReplaceField(DAOJob.java)
at com.eurekaapp.server.dao.mappedobjects.DAOJob.jdoReplaceFields(DAOJob.java)
at org.datanucleus.state.JDOStateManager.replaceFields(JDOStateManager.java:1935)
at org.datanucleus.state.JDOStateManager.replaceFields(JDOStateManager.java:1962)
at com.google.appengine.datanucleus.DatastorePersistenceHandler.fetchObject(DatastorePersistenceHandler.java:567)
at org.datanucleus.state.JDOStateManager.loadFieldsFromDatastore(JDOStateManager.java:1638)
at org.datanucleus.state.JDOStateManager.validate(JDOStateManager.java:3511)
at org.datanucleus.ObjectManagerImpl.findObject(ObjectManagerImpl.java:3379)
at org.datanucleus.api.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1722)
at org.datanucleus.api.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1740)
at com.eurekaapp.server.dao.GoogleCloud.getJob(GoogleCloud.java:712)
at com.eurekaapp.server.service.DAOServiceImpl.getJob(DAOServiceImpl.java:661)
at com.eurekaapp.server.api.client.AddJobEvent.doPost(AddJobEvent.java:55)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:254)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:527)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:444)
at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:220)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:745)
我不确定是哪个字段抛出了这个异常？ 我在 obj 中有 3 个双打 - 权重 0 交货经度 0 配送纬度 0
其余数字都是多头。目前只有这一个对象会发生这种情况。
如果没有传入任何值，这些值将默认设置。展望未来，如果我将这些默认值设置为代表实际的双打，可能会纠正这个问题。
以下是导致异常发生的服务器上的一些日志：
I 12:16:05.092 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,091 DEBUG Request 6CDEEF07 class:doPost:45 - user.isParsingSuccessfull()
I 12:16:05.093 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,092 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1830 - isReceivedVersionCorrect(): starting
I 12:16:05.094 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,093 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1833 - isReceivedVersionCorrect(): try
I 12:16:05.095 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,094 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1837 - isReceivedVersionCorrect(): version correct, version[17]
I 12:16:05.096 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,095 DEBUG Request 6CDEEF07 class:isReceivedVersionCorrect:1846 - isReceivedVersionCorrect(): successfull true
I 12:16:05.097 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,096 DEBUG Request 6CDEEF07 class:doPost:47 - daoService.isReceivedVersionCorrect(passedJSONArray.getJSONObject(0))
I 12:16:05.098 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,097 DEBUG Request 6CDEEF07 class:doPost:49 - passedJSONArray[1]
I 12:16:05.099 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,098 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1962 - isReceivedJobEventValid(): starting
I 12:16:05.100 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,099 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1965 - isReceivedJobEventValid(): try
I 12:16:05.101 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,100 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1989 - DAOJobEvent() jobEvent.setParsingSuccessfull(true); DAOJobEvent [key=null, localID=95, jobID=5351674944159744, eventType=11, eventTime=Sun Mar 22 19:07:08 UTC 2015, latitude=53.325, longitude=-6.32569, notes=This job has been finished automatically by the phone, storedEventTime=Mon Mar 23 12:16:05 UTC 2015, companyID=6037653766012928, userID=6012377212387328, nanoTime=3020586876124620, sequence=null]
I 12:16:05.102 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,101 DEBUG Request 6CDEEF07 class:isReceivedJobEventValid:1996 - DAOJobEvent() returning
I 12:16:05.103 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,102 DEBUG Request 6CDEEF07 class:getJob:706 - getJob(): starting
I 12:16:05.104 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,103 DEBUG Request 6CDEEF07 Cache:debug:58 - Level 1 Cache of type "soft" initialised
I 12:16:05.105 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,104 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object Manager "org.datanucleus.ObjectManagerImpl@1456e6b" opened for datastore "com.google.appengine.datanucleus.DatastoreManager@ba090c" with txn="org.datanucleus.TransactionImpl@1544f26"
I 12:16:05.107 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,106 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id "com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" not found in Level 1 cache [cache size = 0]
I 12:16:05.108 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,107 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id "com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" not found in Level 2 cache
I 12:16:05.109 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,108 DEBUG Request 6CDEEF07 Cache:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") added to Level 1 cache (loadedFlags="[NNNNNNNNNNNNNNNNNNNNYNNNNNNNNNNNNNNNNNNNNNNN]")
I 12:16:05.181 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,109 DEBUG Request 6CDEEF07 Lifecycle:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") has a lifecycle change : "HOLLOW"->"P_NONTRANS"
I 12:16:05.182 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,181 DEBUG Request 6CDEEF07 Connection:debug:58 - Created ManagedConnection using DatastoreService = com.google.appengine.api.datastore.DatastoreServiceImpl@191c505
I 12:16:05.183 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,182 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection added to the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.185 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,184 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection found in the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.186 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,185 DEBUG Request 6CDEEF07 Native:debug:58 - Getting entity of kind DAOJob with key DAOJob(5351674944159744)
I 12:16:05.196 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,195 DEBUG Request 6CDEEF07 Retrieve:debug:58 - Fetching object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id=5351674944159744) fields [acceptStatus,check1,check2,check3,check4,check5,collectionAddress,companyID,containerCode,customerName,customerref,deliveryLatitude,deliveryLongitude,deliveryaddress,deliverytime,enumStatus,groupID,instructions,jobType,jobTypeID,key,lastmodified,localID,notes,parsingSuccessfull,quantity1,quantity2,quantity3,quantity4,ref1,ref2,ref3,ref4,ref5,required_ItemCount,required_Note,required_POD,required_Signature,required_SignatureName,trailerCode,uniqueField,userID,vehicleCode,weight]
I 12:16:05.197 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,196 DEBUG Request 6CDEEF07 Retrieve:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="5351674944159744") being retrieved from AppEngine
I 12:16:05.199 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,197 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") is having the value in field "deliverytime" replaced by a SCO wrapper
I 12:16:05.200 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,199 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object "com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a" (id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744") is having the value in field "lastmodified" replaced by a SCO wrapper
I 12:16:05.201 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,200 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection found in the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc] but owner object closing so closing connection
I 12:16:05.202 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,201 DEBUG Request 6CDEEF07 Connection:debug:58 - Connection removed from the pool : com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl$DatastoreManagedConnection@11de9d0 for key=org.datanucleus.ObjectManagerImpl@1456e6b in factory=ConnectionFactory:nontx[com.google.appengine.datanucleus.DatastoreConnectionFactoryImpl@f2b4dc]
I 12:16:05.203 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,202 DEBUG Request 6CDEEF07 Persistence:debug:58 - Disconnecting com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a from StateManager[pc=com.eurekaapp.server.dao.mappedobjects.DAOJob@4adf6a, lifecycle=P_NONTRANS]
I 12:16:05.204 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,203 DEBUG Request 6CDEEF07 Cache:debug:58 - Object with id="com.eurekaapp.server.dao.mappedobjects.DAOJob:5351674944159744" being removed from Level 1 cache [current cache size = 1]
I 12:16:05.205 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,204 DEBUG Request 6CDEEF07 Cache:debug:58 - Level 1 Cache cleared
I 12:16:05.206 [s~server-test-/17.383086902326406416].<stdout>: 12:16:05,205 DEBUG Request 6CDEEF07 Persistence:debug:58 - Object Manager "org.datanucleus.ObjectManagerImpl@1456e6b" closed
-有什么建议吗？
上面的用户 Andrei Volgin 评论是正确的。
数据存储查看器字段只有 float 和 int 类型。我编辑了一个 double 值并将其存储为 Long。
我试图通过更新一个字段来重现这个问题，但最初它没有重现，因为它是从 JDO 缓存中获取原始对象。
一旦新实例在 GAE 上启动 "This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application."
并且 JDO 去退休我新更新的对象，我得到一个 java.lang.Long cannot be cast to java.lang.Double。
底线，不要使用数据存储查看器更新双精度值