i'm having the exact same problem. did you ever resolve this? On Sep 22, 7:04 pm, Angel <[email protected]> wrote: > I have this class and all run everything works perfectly. > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > public class AlumnRecord extends BaseRecord implements Serializable { > > private static final long serialVersionUID = 4731284321979088514L; > > @PrimaryKey > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > @Extension(vendorName = "datanucleus", key = "gae.encoded-pk", value > = "true") > private String id; > > @Persistent > private String name; > > @Persistent > List<String> notes; > > } > > But, when I change the List<String> notes; > for > List<NoteRecord> notes; > > Where NoteRecord is: > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > public class NoteRecord extends BaseRecord implements Serializable { > > private static final long serialVersionUID = -8671791949089673525L; > > @PrimaryKey > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > @Extension(vendorName="datanucleus", key="gae.encoded-pk", > value="true") > private String id; > > @Persistent > private String text; > > } > > throws and exception: > > 23-sep-2009 0:51:51 > com.google.appengine.tools.development.ApiProxyLocalImpl log > SEVERE: [1253659911281000] javax.servlet.ServletContext log: Exception > while dispatching incoming RPC call > com.google.gwt.user.client.rpc.SerializationException: Type > 'org.datanucleus.sco.backed.List' was not included in the set of types > which can be serialized by this SerializationPolicy or its Class > object could not be loaded. For security purposes, this type will not > be serialized. > at > com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSerialize > (StandardSerializationPolicy.java:83) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize > (ServerSerializationStreamWriter.java:591) > at > com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject > (AbstractSerializationStreamWriter.java:129) > at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter > $ValueWriter$8.write(ServerSerializationStreamWriter.java:146) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue > (ServerSerializationStreamWriter.java:530) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass > (ServerSerializationStreamWriter.java:636) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl > (ServerSerializationStreamWriter.java:666) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize > (ServerSerializationStreamWriter.java:593) > at > com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject > (AbstractSerializationStreamWriter.java:129) > at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter > $ValueWriter$8.write(ServerSerializationStreamWriter.java:146) > at > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue > (ServerSerializationStreamWriter.java:530) > at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:573) > at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess > (RPC.java:441) > at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse > (RPC.java:529) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall > (RemoteServiceServlet.java:166) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost > (RemoteServiceServlet.java:86) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1093) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter > (TransactionCleanupFilter.java:43) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1084) > at com.google.appengine.tools.development.StaticFileFilter.doFilter > (StaticFileFilter.java:121) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1084) > at org.mortbay.jetty.servlet.ServletHandler.handle > (ServletHandler.java:360) > at org.mortbay.jetty.security.SecurityHandler.handle > (SecurityHandler.java:216) > at org.mortbay.jetty.servlet.SessionHandler.handle > (SessionHandler.java:181) > at org.mortbay.jetty.handler.ContextHandler.handle > (ContextHandler.java:712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > (DevAppEngineWebAppContext.java:54) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:313) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection$RequestHandler.content > (HttpConnection.java:844) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) > at org.mortbay.io.nio.SelectChannelEndPoint.run > (SelectChannelEndPoint.java:396) > at org.mortbay.thread.BoundedThreadPool$PoolThread.run > (BoundedThreadPool.java:442) > > Thanks.
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