Terracotta Discussion Forums (LEGACY READ-ONLY ARCHIVE)

hi,

i am clustering my application httpsession using session cofigurator.
when i click edit on somepage, below exception is thrown.
plz help me.

regards
-narendra

java.lang.StackOverflowError
at com.tc.util.Util.printLogAndMaybeRethrowError(Util.java:51)
at com.tc.util.Util.printLogAndRethrowError(Util.java:42)
at com.tc.object.bytecode.ManagerImpl.lookupExistingOrNull(ManagerImpl.java:603)
at com.tc.object.bytecode.ManagerUtil.lookupExistingOrNull(ManagerUtil.java:130)
at java.util.concurrent.ConcurrentHashMap.__tc_isDsoHashRequired(ConcurrentHashMap.java:639)
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java)
at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:255)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1035)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at javax.swing.tree.DefaultMutableTreeNode.writeObject(DefaultMutableTreeNode.java:1272)

Hello narendra,

Which container are you running this application under? Is this is web-application? I wanted to make sure since I saw references to Java Swing library in the stack trace.

Hi,

i am using apache-tomcat-5.5.23 server.
my application is build upon springmcv,spring,hibernate.

it is not a swingbased application.

i increase the heap size aslo.

still it is giving me the error.

in below method it is throwing error at this statement
request.getSession().setAttribute("oscDemoQuestionSet", oscMagazineInfo.getOscDemoQuestionses());

Regards
-narendra
==============================================

protected void initinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {

super.initBinder(request, binder);
ArrayList list = (ArrayList)getServletContext().getAttribute("catOscCybersourceMerchants");
if(list!=null){
request.setAttribute("cybersourceMerchantsList", list);
}

ArrayList fullFillmentList =(ArrayList)getServletContext().getAttribute("catOscFulfillmentHouse");
if(fullFillmentList !=null){
request.setAttribute("fullfillmenthouse", fullFillmentList);
}

ArrayList storeCategoryList =(ArrayList)getServletContext().getAttribute("catOscStoreCategories");

if(storeCategoryList !=null){
request.setAttribute("storeCategoryList", storeCategoryList);
}

ArrayList activeCsOptionList=(ArrayList)getServletContext().getAttribute("catOscActiveCsOptions");
if(activeCsOptionList !=null){
request.setAttribute("activeCsOptionList",activeCsOptionList);
}

if(oscMagazineInfo.getOscMagazineTermses()!=null){
request.setAttribute("termList", oscMagazineInfo.getOscMagazineTermses());

}else{
request.setAttribute("termList", (ArrayList)getUniOfferTerms());
}

ArrayList payList=(ArrayList)getServletContext().getAttribute("catOscPaymentTypes");
if(payList!=null && payList.size()>0){
request.setAttribute("oscPayTypeList",payList);
}

request.setAttribute("demoQuestionList", oscMagazineInfo.getOscDemoQuestionses());

request.setAttribute("setActiveCsOption",(ArrayList)MagazineUtil.createActiveCsOptionsList(oscMagazineInfo));

List acceptPayementTypeList= MagazineUtil.createAcceptedPaymentsTypesList(oscMagazineInfo);
if(acceptPayementTypeList!=null){
request.setAttribute("accepted",acceptPayementTypeList);
}

//Putting Demoquestion in session
request.getSession().setAttribute("oscDemoQuestionSet", oscMagazineInfo.getOscDemoQuestionses());
//Putting Magazine terms set in session
request.getSession().setAttribute("oscMagazineTermsSet",oscMagazineInfo.getOscMagazineTermses());

binder.registerCustomEditor(Integer.class, new CustomNumberEditor(Integer.class, true));

}

Hi Narendra,

Can you please post the version of Terracotta you are using? Thanks!

i am using 2.4 version.

Regards
-Narendra

What is happening is that the Session Configurator is trying to show you a dialog that displays the object graph of your oscDemoQuestionSet because there are some objects in that graph that are not portable.

Here is an example of the dialog from the online docs:

http://www.terracotta.org/confluence/display/docdraft/Sessions+Configurator+Reference+Guide#SessionsConfiguratorReferenceGuide-SessionsProblemFeedback

Either there is a very large set of non-portable objects in that graph or there is a bug in the handling of that graph, such an infinite-loop.

By default, the non-portable object graph is also printed to your client logs. Look in the logs for the printed graph and post it here. It will help pinpoint the problem.

One more thing you do is limit the depth of the non-portable object graph that will be displayed by passing the Java system property org.terracotta.non-portable.max-walk-depth to your client:

-Dorg.terracotta.non-portable.max-walk-depth=2

This will limit the graph depth to 2 levels.