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blake1024
 Post subject: could not initialize proxy - no Session
PostPosted: Sun Apr 03, 2016 12:36 pm 
Newbie

Joined: Fri Dec 08, 2006 5:44 pm
Posts: 13
Hi,

I am using Hibernate 3.6.10.Final. I have a huge app (9500 classes) built on Hibernate that runs fine. Recently a client requested that my screen show all records rather than a page at a time. There are no writes. All I changed was for the system to get all of the records (440) instead of a page (40). Now I am getting an error "could not initialize proxy - no Session". The session is not being closed until the end. The error is occurring when a lazy loaded element is accessed. This is what it seems is happening:

1. I spin through 440 records reading them into a list.

2. I go back through the list to get some internal elements (causing lazy loads). The session has not been closed until way after this.

When I read 40 records everything works fine. When I read 440 records I get the listed error on step 2.

It seems what is happening is that after X records Hibernate disconnects earlier records. Is that normal behavior? Am I missing something?

Any help would sure be appreciated.

Thanks!

Blake McBride
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vlad
 Post subject: Re: could not initialize proxy - no Session
PostPosted: Sun Apr 03, 2016 2:26 pm 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1628
Location: Romania
This is not a normal behavior at all. Unfortunately, you use a very old version, so even if it's a bug, I don't think there will be any 3.x releases any more.
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blake1024
 Post subject: Re: could not initialize proxy - no Session
PostPosted: Sat Apr 09, 2016 6:34 pm 
Newbie

Joined: Fri Dec 08, 2006 5:44 pm
Posts: 13
Thanks! Could you please recommend some pointers to instructions on updating from 3.6.10 all the way to the current version?

Thanks!

Blake McBride
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vlad
 Post subject: Re: could not initialize proxy - no Session
PostPosted: Sun Apr 10, 2016 12:02 am 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1628
Location: Romania
Sure, you can do it in 2 steps:

1. Migrate 3 to 4
2. Migrate 4 to5
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blake1024
 Post subject: Re: could not initialize proxy - no Session
PostPosted: Mon May 02, 2016 7:59 pm 
Newbie

Joined: Fri Dec 08, 2006 5:44 pm
Posts: 13
Okay, I updated from Hibernate 3.6.10.Final to 5.1.0.Final. I am still getting the same error. Here is what I am getting now:

Code:
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[WARN ] [internal.StatefulPersistenceContext] - HHH000179: Narrowing proxy to class com.arahant.beans.CompanyDetail - this operation breaks ==
[ERROR] [createTimesheetInvoice.CreateTimesheetInvoiceOps] - Error in com.arahant.services.standard.billing.createTimesheetInvoice.CreateTimesheetInvoiceOps.searchBillableTimesheets
[ERROR] [createTimesheetInvoice.CreateTimesheetInvoiceOps] - could not initialize proxy - no Session
[ERROR] [createTimesheetInvoice.CreateTimesheetInvoiceOps] - org.hibernate.LazyInitializationException: could not initialize proxy - no Session
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
   at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:147)
   at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:260)
   at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:68)
   at com.arahant.beans.Employee_$$_jvst270_42.getFname(Employee_$$_jvst270_42.java)
   at com.arahant.business.BTimesheet.getFirstName(BTimesheet.java:484)
   at com.arahant.services.standard.billing.createTimesheetInvoice.SearchBillableTimesheetsReturnItem.<init>(SearchBillableTimesheetsReturnItem.java:32)
   at com.arahant.services.standard.billing.createTimesheetInvoice.SearchBillableTimesheetsReturn.setItem(SearchBillableTimesheetsReturn.java:42)
   at com.arahant.services.standard.billing.createTimesheetInvoice.CreateTimesheetInvoiceOps.searchBillableTimesheets(CreateTimesheetInvoiceOps.java:143)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:250)
   at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:149)
   at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:94)
   at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:961)
   at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:910)
   at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:873)
   at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:775)
   at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:386)
   at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:640)
   at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:263)
   at com.sun.xml.ws.transport.http.servlet.ServletAdapter.invokeAsync(ServletAdapter.java:218)
   at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:159)
   at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:194)
   at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:80)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.catalina.filters.CorsFilter.handleSimpleCORS(CorsFilter.java:302)
   at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:170)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
   at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
   at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
   at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
   at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
   at java.lang.Thread.run(Thread.java:745)
[ERROR] [createTimesheetInvoice.CreateTimesheetInvoiceOps] - 2016-05-02 18:57:39 org.hibernate.LazyInitializationException: could not initialize proxy - no Session
   at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:147)
   at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:260)
   at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:68)
   at com.arahant.beans.Employee_$$_jvst270_42.getFname(Employee_$$_jvst270_42.java)
   at com.arahant.business.BTimesheet.getFirstName(BTimesheet.java:484)
   at com.arahant.services.standard.billing.createTimesheetInvoice.SearchBillableTimesheetsReturnItem.<init>(SearchBillableTimesheetsReturnItem.java:32)
   at com.arahant.services.standard.billing.createTimesheetInvoice.SearchBillableTimesheetsReturn.setItem(SearchBillableTimesheetsReturn.java:42)
   at com.arahant.services.standard.billing.createTimesheetInvoice.CreateTimesheetInvoiceOps.searchBillableTimesheets(CreateTimesheetInvoiceOps.java:143)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:250)
   at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:149)
   at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:94)
   at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:961)
   at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:910)
   at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:873)
   at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:775)
   at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:386)
   at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:640)
   at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:263)
   at com.sun.xml.ws.transport.http.servlet.ServletAdapter.invokeAsync(ServletAdapter.java:218)
   at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:159)
   at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:194)
   at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:80)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.catalina.filters.CorsFilter.handleSimpleCORS(CorsFilter.java:302)
   at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:170)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
   at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
   at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
   at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
   at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
   at java.lang.Thread.run(Thread.java:745)


Really appreciate some pointers. I am quite lost.

Thanks!

Blake
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blake1024
 Post subject: Re: could not initialize proxy - no Session
PostPosted: Sun May 08, 2016 10:01 pm 
Newbie

Joined: Fri Dec 08, 2006 5:44 pm
Posts: 13
Found the problem. Someone (many programmers built this system) put a clear() in a next() method so it would do a clear() every so many records!! So, there was no session on the clear()'ed records. Makes sense.
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