Hi,

I am getting the error below in a JSF app when I try to fetch a
List<Template>.

Using this code:
            PersistenceManager pm =
PMF.get().getPersistenceManager();//
            String query = "select from " + Template.class.getName() + "
where owner=='"+owner+"' ";
            this.templates = (List<Template>) pm.newQuery(query).execute();

Can you help figure out what's causing it.

Thanks.

#

   1.
      04-19 01:42PM 52.901 /pages/newcbx.faces 500 18322ms 24015cpu_ms
40api_cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
3.5.30729),gzip(gfe)
      See details

      98.229.74.17 - - [19/Apr/2010:13:43:11 -0700] "POST /pages/
newcbx.faces HTTP/1.1" 500 0 "http://ezcomment.appspot.com/pages/
dusers.faces" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
3.5.30729),gzip(gfe)" "ezcomment.appspot.com"

   2.
      W 04-19 01:43PM 02.874

      [ezcomment/1.341368964543160070].<stderr>: SystemId Unknown;
Line #57; Column #31; Failed calling setMethod method


   3.
      W 04-19 01:43PM 03.367

      [ezcomment/1.341368964543160070].<stderr>: SystemId Unknown;
Line #57; Column #31; Failed calling setMethod method


   4.
      W 04-19 01:43PM 11.177

      /pages/newcbx.faces
      java.lang.RuntimeException: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.DatastoreQuery$2
        at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
361)
        at
com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
341)
        at com.google.apphosting.runtime.jetty.SessionManager
$AppEngineSession.save(SessionManager.java:162)
        at
com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
41)
        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:
238)
        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
$RequestHandler.headerComplete(HttpConnection.java:923)
        at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
404)
        at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
        at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
243)
        at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5485)
        at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5483)
        at
com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
24)
        at
com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398)
        at com.google.net.rpc.impl.Server$2.run(Server.java:852)
        at
com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
56)
        at
com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:
536)
        at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
        at com.google.net.rpc.impl.Server.processRequest(Server.java:
369)
        at
com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:
442)
        at
com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
319)
        at
com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
290)
        at
com.google.net.async.Connection.handleReadEvent(Connection.java:474)
        at
com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
831)
        at
com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
207)
        at
com.google.net.async.EventDispatcher.loop(EventDispatcher.java:103)
        at
com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:
251)
        at com.google.apphosting.runtime.JavaRuntime
$RpcRunnable.run(JavaRuntime.java:404)
        at java.lang.Thread.run(Unknown Source)
      Caused by: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.DatastoreQuery$2
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at java.util.ArrayList.writeObject(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.defaultWriteFields(Unknown
Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.defaultWriteFields(Unknown
Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at java.util.HashMap.writeObject(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
358)
        ... 39 more

   5.
      C 04-19 01:43PM 11.197

      Uncaught exception from servlet
      java.lang.RuntimeException: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.DatastoreQuery$2
        at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
361)
        at
com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
341)
        at com.google.apphosting.runtime.jetty.SessionManager
$AppEngineSession.save(SessionManager.java:162)
        at
com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
41)
        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:
238)
        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
$RequestHandler.headerComplete(HttpConnection.java:923)
        at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
404)
        at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
        at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
243)
        at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5485)
        at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5483)
        at
com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
24)
        at
com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398)
        at com.google.net.rpc.impl.Server$2.run(Server.java:852)
        at
com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
56)
        at
com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:
536)
        at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
        at com.google.net.rpc.impl.Server.processRequest(Server.java:
369)
        at
com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:
442)
        at
com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
319)
        at
com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
290)
        at
com.google.net.async.Connection.handleReadEvent(Connection.java:474)
        at
com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
831)
        at
com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
207)
        at
com.google.net.async.EventDispatcher.loop(EventDispatcher.java:103)
        at
com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:
251)
        at com.google.apphosting.runtime.JavaRuntime
$RpcRunnable.run(JavaRuntime.java:404)
        at java.lang.Thread.run(Unknown Source)
      Caused by: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.DatastoreQuery$2
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at java.util.ArrayList.writeObject(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.defaultWriteFields(Unknown
Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.defaultWriteFields(Unknown
Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at java.util.HashMap.writeObject(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
        at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
        at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)
        at java.io.ObjectOutputStream.writeObject0(Unknown Source)
        at java.io.ObjectOutputStream.writeObject(Unknown Source)
        at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
358)
        ... 39 more

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