[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
12:47 p.m.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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1:14 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12354618 ]
Keith Naas commented on JBSEAM-959:
-----------------------------------
Also needed to change isNested.
public boolean isNested()
{
return conversationIdStack != null && conversationIdStack.size()>1;
}
So then changed the constructor to be
if ( isNested() )
{
// get the root conversation entry lock (we want to share the same lock
// among all nested conversations in the same conversation stack)
lock = entries.getConversationEntry( conversationIdStack.get(
conversationIdStack.size()-1 ) ).lock;
}
else
{
lock = new ReentrantLock(true);
}
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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1:38 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12354621 ]
Gavin King commented on JBSEAM-959:
-----------------------------------
OK, and what are you doing to observe this? I have never observed this.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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8:27 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12354698 ]
Keith Naas commented on JBSEAM-959:
-----------------------------------
Excellent question. A small project in our department is encountering this and I have not
had the time to really investigate the real cause of the problem. It could be that a
conversation scoped bean is being abused.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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10:35 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12354715 ]
Pete Muir commented on JBSEAM-959:
----------------------------------
So I saw this as well yesterday - I was trying to start a conversation in a async method
which blew up
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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10:35 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12354716 ]
Pete Muir commented on JBSEAM-959:
----------------------------------
The start was from a @Begin @Create method on a JavaBean
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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10:39 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=all ]
Gavin King updated JBSEAM-959:
------------------------------
Fix Version/s: 1.2.1.GA
Assignee: Pete Muir
Pete, would you please give me instructions on how to reproduce, thanks.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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7:28 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=all ]
Gavin King updated JBSEAM-959:
------------------------------
Fix Version/s: (was: 1.2.1.GA)
De-scheduling, since no-one seems to be able to reproduce this.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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10:44 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Resolved: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=all ]
Pete Muir resolved JBSEAM-959.
------------------------------
Fix Version/s: 1.2.1.GA
Resolution: Out of Date
So, now I'm getting javax.ejb.EJBException: java.lang.IllegalStateException: Do not
start long-running conversations in direct calls to EJBs when I try to reproduce what I
had before, so resolving
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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2:57 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12356597 ]
Andrew commented on JBSEAM-959:
-------------------------------
In terms of being able to reproduce, the full stack trace is below. I got this when I was
using ajaxSingle = true with an AJAX support component from Ajax4JSF. It happens in the
RESTORE_VIEW phase. Also, I saw that there was no stored conversation which also could be
part of the problem as I did have a conversation active at the time (I think maybe my
onblur handler and my onchange handler of a component got fired at the same time).
13:48:00,493 DEBUG [Manager] No stored conversation, or concurrent call to the stored
conversation
13:48:00,546 ERROR [ExceptionLogFilter] An unexpected error was thrown on the server in a
servlet
java.lang.NullPointerException
at org.jboss.seam.core.ConversationEntry.<init>(ConversationEntry.java:44)
at
org.jboss.seam.core.ConversationEntries.createConversationEntry(ConversationEntries.java:50)
at org.jboss.seam.core.Manager.createConversationEntry(Manager.java:649)
at org.jboss.seam.core.Manager.beforeRedirect(Manager.java:796)
at
org.jboss.seam.core.Manager.appendConversationIdFromRedirectFilter(Manager.java:1004)
at
org.jboss.seam.servlet.SeamRedirectFilter$1.sendRedirect(SeamRedirectFilter.java:46)
at
org.apache.myfaces.context.servlet.ServletExternalContextImpl.redirect(ServletExternalContextImpl.java:493)
at
org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:177)
at org.jboss.seam.jsf.SeamViewHandler.restoreView(SeamViewHandler.java:64)
at org.jenia.faces.template.handler.ViewHandler.restoreView(ViewHandler.java:263)
at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:321)
at
org.ajax4jsf.framework.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:116)
at
org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:147)
at
org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:81)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:29)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:190)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
com.outlooksoft.cpm.servlet.AjaxHtmlHeadFilter.doFilter(AjaxHtmlHeadFilter.java:60)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
com.outlooksoft.cpm.servlet.ExceptionLogFilter.doFilter(ExceptionLogFilter.java:43)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.outlooksoft.cpm.security.SecurityFilter.doFilter(SecurityFilter.java:197)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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12:30 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12357344 ]
Andrew commented on JBSEAM-959:
-------------------------------
Please re-open this bug, it is not fixed.
Steps to reproduce:
Attempt a redirect from inside of the RESTORE_VIEW phase.
What happens:
Seam does not initialize the conversation stack until the end of the RESTORE_VIEW phase.
Until then, any redirect will fail with an exception because Seam calls
createConversationEntry() without first creating the stack.
This is easily reproducible with Ajax4Jsf 1.1.0. Try this:
1) Create a page with a RichFaces tree (any A4J enabled component that generates AJAX
events will work).
2) View the page and wait for the session/view to time out
3) Expand a node (generating an AJAX event)
What happens:
1) A4J's view handler sees that no UIViewRoot exists due to session expiration
2) The view handler then sends a redirect to the user to the requested view ID
3) Seam's redirect filter picks up the redirect request and attempts to append the
conversation ID onto the URL
4) This fails because the conversation stack is not created until after RESTORE_VIEW
I'm also approaching this bug from the A4J side:
http://jboss.com/index.html?module=bb&op=viewtopic&p=4031688#4031688
Thank you!
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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1:03 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12357354 ]
Gavin King commented on JBSEAM-959:
-----------------------------------
Don't do redirects from RESTORE_VIEW. I'm not going to reopen. If there is an
incompatibility with a4j, than that should be fixed in a4j.
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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1:15 p.m.
New subject: [jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=comments#action_12357355 ]
Andrew commented on JBSEAM-959:
-------------------------------
"Don't do redirects from RESTORE_VIEW"
Why not? The JSF specification (at least the JavaDoc) does not mention that this is not
allowed, and therefore should be permitted and work without exceptions.
http://tinyurl.com/ytk4ew
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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5:07 a.m.
New subject: [jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-959) NullPointerException in ConversationEntry if stack is null
[ http://jira.jboss.com/jira/browse/JBSEAM-959?page=all ]
Pete Muir closed JBSEAM-959.
----------------------------
NullPointerException in ConversationEntry if stack is null
----------------------------------------------------------
Key: JBSEAM-959
URL: http://jira.jboss.com/jira/browse/JBSEAM-959
Project: JBoss Seam
Issue Type: Bug
Components: Core
Affects Versions: 1.2.0.GA
Reporter: Keith Naas
Assigned To: Pete Muir
Fix For: 1.2.1.GA
When the conversation stack is null, the ConversationEntry constructor throws a
NullPointerException.
There is a conditional check earlier in the constructor that causes the
conversationIdStack to be set to null. Then later it checks to see if the stack size is
greater than 1. Kablooey!
changed to
if ( conversationIdStack != null && conversationIdStack.size()>1 )
--
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6724
days inactive
6890
days old
13 comments
4 participants
participants (4)
-
Andrew (JIRA) -
Gavin King (JIRA)
-
Keith Naas (JIRA)
-
Pete Muir (JIRA)