If you are using Eclipse, this can typically be fixed by making a small change to one of your JDO enhanced classes (like, hit space and then delete the space), save the file, and try re-sending the app to Google. I know it sounds strange (you effectively are not doing anything to the actual file in the end), but it works.
On Jan 4, 11:41 am, John Lin <john...@google.com> wrote: > Dear Sir, > > I got this db error on th efirst working day of 2010. Please see the > erros in details. I run theis as an wev application and lunch the GUI > as:http://localhost:8080/index.html > > It seems the db has some changes recently. > > Please advise me. Thanks. > > John > > ****************************errors > HTTP ERROR: 500 > > Persistent class "Class guestbook.Greeting does not seem to have been > enhanced. You may want to rerun the enhancer and check for errors in > the output." has no table in the database, but the operation requires > it. Please check the specification of the MetaData for this class. > > RequestURI=/ > Caused by: > > javax.jdo.JDOUserException: Persistent class "Class guestbook.Greeting > does not seem to have been enhanced. You may want to rerun the > enhancer and check for errors in the output." has no table in the > database, but the operation requires it. Please check the > specification of the MetaData for this class. > at > org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException > (NucleusJDOHelper.java:375) > at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:230) > at org.apache.jsp.guestbookujsp_jsp._jspService > (guestbookujsp_jsp.java:94) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.apache.jasper.servlet.JspServletWrapper.service > (JspServletWrapper.java:324) > at org.apache.jasper.servlet.JspServlet.serviceJspFile > (JspServlet.java:292) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > at com.google.appengine.tools.development.PrivilegedJspServlet.access > $101(PrivilegedJspServlet.java:23) > at com.google.appengine.tools.development.PrivilegedJspServlet$2.run > (PrivilegedJspServlet.java:59) > at java.security.AccessController.doPrivileged(Native Method) > at com.google.appengine.tools.development.PrivilegedJspServlet.service > (PrivilegedJspServlet.java:57) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler.handle > (ServletHandler.java:362) > at org.mortbay.jetty.security.SecurityHandler.handle > (SecurityHandler.java:216) > at org.mortbay.jetty.servlet.SessionHandler.handle > (SessionHandler.java:181) > at org.mortbay.jetty.handler.ContextHandler.handle > (ContextHandler.java:712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > (DevAppEngineWebAppContext.java:54) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) > at > com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsFo > rward > (StaticFileUtils.java:80) > at > com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeW > elcomeFile > (LocalResourceFileServlet.java:254) > at > com.google.appengine.tools.development.LocalResourceFileServlet.doGet > (LocalResourceFileServlet.java:120) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler$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 > $ApiProxyHandler.handle(JettyContainerService.java:342) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete > (HttpConnection.java:830) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) > 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) > NestedThrowablesStackTrace: > Persistent class "Class guestbook.Greeting does not seem to have been > enhanced. You may want to rerun the enhancer and check for errors in > the output." has no table in the database, but the operation requires > it. Please check the specification of the MetaData for this class. > org.datanucleus.store.exceptions.NoTableManagedException: Persistent > class "Class guestbook.Greeting does not seem to have been enhanced. > You may want to rerun the enhancer and check for errors in the > output." has no table in the database, but the operation requires it. > Please check the specification of the MetaData for this class. > at org.datanucleus.store.appengine.DatastoreManager.getDatastoreClass > (DatastoreManager.java:568) > at org.datanucleus.store.appengine.query.DatastoreQuery.performExecute > (DatastoreQuery.java:200) > at org.datanucleus.store.appengine.query.JDOQLQuery.performExecute > (JDOQLQuery.java:84) > at org.datanucleus.store.query.Query.executeQuery(Query.java:1489) > at org.datanucleus.store.query.Query.executeWithArray(Query.java: > 1371) > at org.datanucleus.store.query.Query.execute(Query.java:1344) > at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:221) > at org.apache.jsp.guestbookujsp_jsp._jspService > (guestbookujsp_jsp.java:94) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.apache.jasper.servlet.JspServletWrapper.service > (JspServletWrapper.java:324) > at org.apache.jasper.servlet.JspServlet.serviceJspFile > (JspServlet.java:292) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > at com.google.appengine.tools.development.PrivilegedJspServlet.access > $101(PrivilegedJspServlet.java:23) > at com.google.appengine.tools.development.PrivilegedJspServlet$2.run > (PrivilegedJspServlet.java:59) > at java.security.AccessController.doPrivileged(Native Method) > at com.google.appengine.tools.development.PrivilegedJspServlet.service > (PrivilegedJspServlet.java:57) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler.handle > (ServletHandler.java:362) > at org.mortbay.jetty.security.SecurityHandler.handle > (SecurityHandler.java:216) > at org.mortbay.jetty.servlet.SessionHandler.handle > (SessionHandler.java:181) > at org.mortbay.jetty.handler.ContextHandler.handle > (ContextHandler.java:712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > (DevAppEngineWebAppContext.java:54) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) > at > com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsFo > rward > (StaticFileUtils.java:80) > at > com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeW > elcomeFile > (LocalResourceFileServlet.java:254) > at > com.google.appengine.tools.development.LocalResourceFileServlet.doGet > (LocalResourceFileServlet.java:120) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler$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 > $ApiProxyHandler.handle(JettyContainerService.java:342) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete > (HttpConnection.java:830) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) > 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) > > Caused by: > > Persistent class "Class guestbook.Greeting does not seem to have been > enhanced. You may want to rerun the enhancer and check for errors in > the output." has no table in the database, but the operation requires > it. Please check the specification of the MetaData for this class. > org.datanucleus.store.exceptions.NoTableManagedException: Persistent > class "Class guestbook.Greeting does not seem to have been enhanced. > You may want to rerun the enhancer and check for errors in the > output." has no table in the database, but the operation requires it. > Please check the specification of the MetaData for this class. > at org.datanucleus.store.appengine.DatastoreManager.getDatastoreClass > (DatastoreManager.java:568) > at org.datanucleus.store.appengine.query.DatastoreQuery.performExecute > (DatastoreQuery.java:200) > at org.datanucleus.store.appengine.query.JDOQLQuery.performExecute > (JDOQLQuery.java:84) > at org.datanucleus.store.query.Query.executeQuery(Query.java:1489) > at org.datanucleus.store.query.Query.executeWithArray(Query.java: > 1371) > at org.datanucleus.store.query.Query.execute(Query.java:1344) > at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:221) > at org.apache.jsp.guestbookujsp_jsp._jspService > (guestbookujsp_jsp.java:94) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.apache.jasper.servlet.JspServletWrapper.service > (JspServletWrapper.java:324) > at org.apache.jasper.servlet.JspServlet.serviceJspFile > (JspServlet.java:292) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > at com.google.appengine.tools.development.PrivilegedJspServlet.access > $101(PrivilegedJspServlet.java:23) > at com.google.appengine.tools.development.PrivilegedJspServlet$2.run > (PrivilegedJspServlet.java:59) > at java.security.AccessController.doPrivileged(Native Method) > at com.google.appengine.tools.development.PrivilegedJspServlet.service > (PrivilegedJspServlet.java:57) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler.handle > (ServletHandler.java:362) > at org.mortbay.jetty.security.SecurityHandler.handle > (SecurityHandler.java:216) > at org.mortbay.jetty.servlet.SessionHandler.handle > (SessionHandler.java:181) > at org.mortbay.jetty.handler.ContextHandler.handle > (ContextHandler.java:712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > (DevAppEngineWebAppContext.java:54) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268) > at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) > at > com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsFo > rward > (StaticFileUtils.java:80) > at > com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeW > elcomeFile > (LocalResourceFileServlet.java:254) > at > com.google.appengine.tools.development.LocalResourceFileServlet.doGet > (LocalResourceFileServlet.java:120) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler$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 > $ApiProxyHandler.handle(JettyContainerService.java:342) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete > (HttpConnection.java:830) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) > 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) > > Powered by Jetty:// -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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