RE: ModalWindow detach/serialize crashes wicket app

2011-04-04 Thread Russell Morrisey
Clint, Pedro,

Thank you both for your replies. Based on your comments, and from looking at a 
heap dump, I am thinking the problem may stem from an inner class created by 
our app's wicket Session. I have made the inner class static, so that it will 
no longer hold a reference to the Session. The inner class is a model which 
loads a reference to a User object.

Any hints on how to reproduce the problem, so I can prove it? I'm not clear on 
what triggers the serialization process that causes the error to be thrown.


RUSSELL E. MORRISEY
Programmer Analyst Professional
Mission Solutions Engineering, LLC

| russell.morri...@missionse.com | www.missionse.com
304 West Route 38, Moorestown, NJ 08057-3212

-Original Message-
From: Clint Checketts [mailto:checke...@gmail.com]
Sent: Friday, April 01, 2011 7:06 PM
To: users@wicket.apache.org
Subject: Re: ModalWindow detach/serialize crashes wicket app

Do you have a propetymodel with the session as its object?

On Friday, April 1, 2011, Pedro Santos pedros...@gmail.com wrote:
 looks like your page is referencing session or pagemap somehow

 On Fri, Apr 1, 2011 at 4:15 PM, Russell Morrisey 
 russell.morri...@missionse.com wrote:

 Guys,

 I'm having an intermittent issue in development where use of a ModalWindow
 on a page completely crashes wicket.

 I don't know of the ModalWindow is the root cause. I am hoping that someone
 with intimate knowledge of wicket's page store can help me narrow it down.
 Hints appreciated. =)

 The X button and other ajax controls within the ModalWindow's content
 page stop responding to user input. When I try to hit the same bookmarkable
 URL again for the containing page, wicket seems to have stopped running
 entirely, and I get a Tomcat HTTP 404 error.

 The JVM outputs a StackOverflowError which looks like it happens during
 page serialization.
 Apr 1, 2011 2:53:14 PM org.apache.catalina.core.StandardWrapperValve invoke
 SEVERE: Servlet.service() for servlet default threw exception
 java.lang.StackOverflowError
 The two blocks below occur multiple times, each, within a single trace:
 ...
   at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
   at
 org.apache.wicket.protocol.http.pagestore.DiskPageStore.prepareForSerialization(DiskPageStore.java:1190)
   at
 org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.writeObject(SecondLevelCacheSessionStore.java:386)
 ...
   at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:288)
   at org.apache.wicket.Page.writeReplace(Page.java:1383)

 In our application's init() method, we have this setting:

 Objects.setObjectStreamFactory(null); // jdk serialization

 I have tried to reproduce the problem in a quickstart; but, I have not had
 much luck, so far.

 We don't really have any custom code in our app that deals with object
 serialization. Any help would be appreciated. We are currently using wicket
 1.4.9; if you guys think this might be fixed in a later version, we'd be
 happy to upgrade. I searched briefly through the JIRA, and nothing popped
 out at me.

 

 RUSSELL E. MORRISEY
 Programmer Analyst Professional
 Mission Solutions Engineering, LLC

 | russell.morri...@missionse.com | www.missionse.com
 http://www.missionse.com/
 304 West Route 38, Moorestown, NJ 08057-3212


 
 This is a PRIVATE message. If you are not the intended recipient, please
 delete without copying and kindly advise us by e-mail of the mistake in
 delivery.
 NOTE: Regardless of content, this e-mail shall not operate to bind MSE to
 any order or other contract unless pursuant to explicit written agreement or
 government initiative expressly permitting the use of e-mail for such
 purpose.




 --
 Pedro Henrique Oliveira dos Santos



This is a PRIVATE message. If you are not the intended recipient, please delete 
without copying and kindly advise us by e-mail of the mistake in delivery.
NOTE: Regardless of content, this e-mail shall not operate to bind MSE to any 
order or other contract unless pursuant to explicit written agreement or 
government initiative expressly permitting the use of e-mail for such purpose

ModalWindow detach/serialize crashes wicket app

2011-04-01 Thread Russell Morrisey
Guys,

I'm having an intermittent issue in development where use of a ModalWindow on a 
page completely crashes wicket.

I don't know of the ModalWindow is the root cause. I am hoping that someone 
with intimate knowledge of wicket's page store can help me narrow it down. 
Hints appreciated. =)

The X button and other ajax controls within the ModalWindow's content page 
stop responding to user input. When I try to hit the same bookmarkable URL 
again for the containing page, wicket seems to have stopped running entirely, 
and I get a Tomcat HTTP 404 error.

The JVM outputs a StackOverflowError which looks like it happens during page 
serialization.
Apr 1, 2011 2:53:14 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet default threw exception
java.lang.StackOverflowError
The two blocks below occur multiple times, each, within a single trace:
...
   at 
org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at 
org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at 
org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
   at 
org.apache.wicket.protocol.http.pagestore.DiskPageStore.prepareForSerialization(DiskPageStore.java:1190)
   at 
org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.writeObject(SecondLevelCacheSessionStore.java:386)
...
   at 
org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at 
org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at 
org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:288)
   at org.apache.wicket.Page.writeReplace(Page.java:1383)

In our application's init() method, we have this setting:

Objects.setObjectStreamFactory(null); // jdk serialization

I have tried to reproduce the problem in a quickstart; but, I have not had much 
luck, so far.

We don't really have any custom code in our app that deals with object 
serialization. Any help would be appreciated. We are currently using wicket 
1.4.9; if you guys think this might be fixed in a later version, we'd be happy 
to upgrade. I searched briefly through the JIRA, and nothing popped out at me.



RUSSELL E. MORRISEY
Programmer Analyst Professional
Mission Solutions Engineering, LLC

| russell.morri...@missionse.com | www.missionse.comhttp://www.missionse.com/
304 West Route 38, Moorestown, NJ 08057-3212



This is a PRIVATE message. If you are not the intended recipient, please delete 
without copying and kindly advise us by e-mail of the mistake in delivery.
NOTE: Regardless of content, this e-mail shall not operate to bind MSE to any 
order or other contract unless pursuant to explicit written agreement or 
government initiative expressly permitting the use of e-mail for such purpose.


Re: ModalWindow detach/serialize crashes wicket app

2011-04-01 Thread Pedro Santos
looks like your page is referencing session or pagemap somehow

On Fri, Apr 1, 2011 at 4:15 PM, Russell Morrisey 
russell.morri...@missionse.com wrote:

 Guys,

 I'm having an intermittent issue in development where use of a ModalWindow
 on a page completely crashes wicket.

 I don't know of the ModalWindow is the root cause. I am hoping that someone
 with intimate knowledge of wicket's page store can help me narrow it down.
 Hints appreciated. =)

 The X button and other ajax controls within the ModalWindow's content
 page stop responding to user input. When I try to hit the same bookmarkable
 URL again for the containing page, wicket seems to have stopped running
 entirely, and I get a Tomcat HTTP 404 error.

 The JVM outputs a StackOverflowError which looks like it happens during
 page serialization.
 Apr 1, 2011 2:53:14 PM org.apache.catalina.core.StandardWrapperValve invoke
 SEVERE: Servlet.service() for servlet default threw exception
 java.lang.StackOverflowError
 The two blocks below occur multiple times, each, within a single trace:
 ...
   at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
   at
 org.apache.wicket.protocol.http.pagestore.DiskPageStore.prepareForSerialization(DiskPageStore.java:1190)
   at
 org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.writeObject(SecondLevelCacheSessionStore.java:386)
 ...
   at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
   at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
   at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
   at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:288)
   at org.apache.wicket.Page.writeReplace(Page.java:1383)

 In our application's init() method, we have this setting:

 Objects.setObjectStreamFactory(null); // jdk serialization

 I have tried to reproduce the problem in a quickstart; but, I have not had
 much luck, so far.

 We don't really have any custom code in our app that deals with object
 serialization. Any help would be appreciated. We are currently using wicket
 1.4.9; if you guys think this might be fixed in a later version, we'd be
 happy to upgrade. I searched briefly through the JIRA, and nothing popped
 out at me.

 

 RUSSELL E. MORRISEY
 Programmer Analyst Professional
 Mission Solutions Engineering, LLC

 | russell.morri...@missionse.com | www.missionse.com
 http://www.missionse.com/
 304 West Route 38, Moorestown, NJ 08057-3212


 
 This is a PRIVATE message. If you are not the intended recipient, please
 delete without copying and kindly advise us by e-mail of the mistake in
 delivery.
 NOTE: Regardless of content, this e-mail shall not operate to bind MSE to
 any order or other contract unless pursuant to explicit written agreement or
 government initiative expressly permitting the use of e-mail for such
 purpose.




-- 
Pedro Henrique Oliveira dos Santos


Re: ModalWindow detach/serialize crashes wicket app

2011-04-01 Thread Clint Checketts
Do you have a propetymodel with the session as its object?

On Friday, April 1, 2011, Pedro Santos pedros...@gmail.com wrote:
 looks like your page is referencing session or pagemap somehow

 On Fri, Apr 1, 2011 at 4:15 PM, Russell Morrisey 
 russell.morri...@missionse.com wrote:

 Guys,

 I'm having an intermittent issue in development where use of a ModalWindow
 on a page completely crashes wicket.

 I don't know of the ModalWindow is the root cause. I am hoping that someone
 with intimate knowledge of wicket's page store can help me narrow it down.
 Hints appreciated. =)

 The X button and other ajax controls within the ModalWindow's content
 page stop responding to user input. When I try to hit the same bookmarkable
 URL again for the containing page, wicket seems to have stopped running
 entirely, and I get a Tomcat HTTP 404 error.

 The JVM outputs a StackOverflowError which looks like it happens during
 page serialization.
 Apr 1, 2011 2:53:14 PM org.apache.catalina.core.StandardWrapperValve invoke
 SEVERE: Servlet.service() for servlet default threw exception
 java.lang.StackOverflowError
 The two blocks below occur multiple times, each, within a single trace:
 ...
       at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
       at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
       at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
       at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203)
       at
 org.apache.wicket.protocol.http.pagestore.DiskPageStore.prepareForSerialization(DiskPageStore.java:1190)
       at
 org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.writeObject(SecondLevelCacheSessionStore.java:386)
 ...
       at
 org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121)
       at
 java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
       at
 org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1130)
       at
 org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:288)
       at org.apache.wicket.Page.writeReplace(Page.java:1383)

 In our application's init() method, we have this setting:

 Objects.setObjectStreamFactory(null); // jdk serialization

 I have tried to reproduce the problem in a quickstart; but, I have not had
 much luck, so far.

 We don't really have any custom code in our app that deals with object
 serialization. Any help would be appreciated. We are currently using wicket
 1.4.9; if you guys think this might be fixed in a later version, we'd be
 happy to upgrade. I searched briefly through the JIRA, and nothing popped
 out at me.

 

 RUSSELL E. MORRISEY
 Programmer Analyst Professional
 Mission Solutions Engineering, LLC

 | russell.morri...@missionse.com | www.missionse.com
 http://www.missionse.com/
 304 West Route 38, Moorestown, NJ 08057-3212


 
 This is a PRIVATE message. If you are not the intended recipient, please
 delete without copying and kindly advise us by e-mail of the mistake in
 delivery.
 NOTE: Regardless of content, this e-mail shall not operate to bind MSE to
 any order or other contract unless pursuant to explicit written agreement or
 government initiative expressly permitting the use of e-mail for such
 purpose.




 --
 Pedro Henrique Oliveira dos Santos


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