Hello ,
I have my GWT application deployed in apache tomcat , but
when I tried to save a JDO object , it gives me an error. Does anyone
aware of this error ?
java.lang.NullPointerException: No API environment is registered for
this thread.
at
com.google.appengine.api.datastore.DatastoreApiHelper.getCurrentAppId
(DatastoreApiHelper.java:63)
at
com.google.appengine.api.datastore.DatastoreApiHelper.getCurrentAppIdNamespace
(DatastoreApiHelper.java:73)
at com.google.appengine.api.datastore.Key.<init>(Key.java:100)
at com.google.appengine.api.datastore.Key.<init>(Key.java:85)
at com.google.appengine.api.datastore.Key.<init>(Key.java:81)
at com.google.appengine.api.datastore.Entity.<init>
(Entity.java:103)
at com.google.appengine.api.datastore.Entity.<init>
(Entity.java:84)
at org.datanucleus.store.appengine.DatastoreFieldManager.<init>
(DatastoreFieldManager.java:167)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess
(DatastorePersistenceHandler.java:316)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects
(DatastorePersistenceHandler.java:236)
at
org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject
(DatastorePersistenceHandler.java:225)
at
org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent
(JDOStateManagerImpl.java:3185)
at org.datanucleus.state.JDOStateManagerImpl.makePersistent
(JDOStateManagerImpl.java:3161)
at org.datanucleus.ObjectManagerImpl.persistObjectInternal
(ObjectManagerImpl.java:1298)
at org.datanucleus.ObjectManagerImpl.persistObject
(ObjectManagerImpl.java:1175)
at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent
(JDOPersistenceManager.java:669)
at org.datanucleus.jdo.JDOPersistenceManager.makePersistent
(JDOPersistenceManager.java:694)
at it.codegen.hpms.server.dbUtil.JDOCity.insert(JDOCity.java:
70)
at it.codegen.hpms.client.service.HPMSSavable.save
(HPMSSavable.java:30)
at it.codegen.hpms.server.service.HPMSServiceImpl.save
(HPMSServiceImpl.java:212)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:527)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
(RemoteServiceServlet.java:166)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(RemoteServiceServlet.java:86)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
729)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service
(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:873)
at org.apache.coyote.http11.Http11BaseProtocol
$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket
(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt
(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool
$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
Thanks in advance
Buminda
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