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From james agada <okwuiag...@gmail.com>
Subject Re: What is this error about?
Date Sun, 15 Sep 2013 11:28:02 GMT
Sent from my iPhone

On Sep 15, 2013, at 12:02 PM, Dan Haywood <dan@haywood-associates.co.uk> wrote:

> On 15 September 2013 11:49, james agada <okwuiagada@gmail.com> wrote:
>
>> I am not using the addTo or remove from templates anywhere. If I can
>> find out which part of the code the problem is coming from, I will
>> quiet easily past it.
>> What I will like to know is what can lead to this kind of error.
> I can see that using lifecycle callbacks [1] to create/update/delete
> further objects could cause this.   But I doubt you aren't doing this.
Aha. I am doing this. If this is the problem then I hope your fix will be it.

>
> So, there is a command being created as a side-effect some other way.  You
> could help by putting a breakpoint in IsisTransaction#addCommand, and -
> after a flush has been executed earlier in the stack trace - seeing why it
> is being called.
>
> If you're unable to do that / not sure how, we could arrange a remote
> debugging session this week some evening; it would be useful for me to know
> why this is occurring.
>
> In the meantime, the fix I'm putting in ISIS-533 might address the issue,
> whatever.
How will I get this fix? Do I need to build from source all over again.
>
> Let me know.
>
> Dan
>
>
>
> [1]
> http://isis.apache.org/applib-guide/how-tos/how-to-07-070-How-to-hook-into-the-object-lifecycle-using-callbacks.html
>
>
>
>> Sent from my iPhone
>>
>> On Sep 15, 2013, at 8:28 AM, GESCONSULTOR <o.bou@gesconsultor.com> wrote:
>>
>>> Hi james.
>>>
>>> Have you used both the JDO annotations and the addToXXX / removeFromXXX
>> isis eclipse templates ?
>>>
>>> The latter ones should not be used with JDO as DataNucleus automatically
>> manages the relationships when doing getContainer().flush().
>>>
>>> More info here [1].
>>>
>>> If that's not the case, can you paste on the mail the code defining the
>> relationship?
>>>
>>>
>>> [1]
>> http://isis.apache.org/components/objectstores/jdo/managed-1-to-m-relationships.html
>>>
>>>
>>>
>>> El 14/09/2013, a las 21:16, james agada <okwuiagada@gmail.com> escribió:
>>>
>>>> - java.util.ConcurrentModificationException
>>>> -
>>>> -
>> java.util.AbstractList$Itr#checkForComodification(AbstractList.java:372)
>>>> - java.util.AbstractList$Itr#next(AbstractList.java:343)
>>>> -
>> java.util.Collections$UnmodifiableCollection$1#next(Collections.java:1008)
>>>> -
>> org.apache.isis.objectstore.jdo.datanucleus.DataNucleusObjectStore#executeCommands(DataNucleusObjectStore.java:360)
>>>> -
>> org.apache.isis.objectstore.jdo.datanucleus.DataNucleusObjectStore#execute(DataNucleusObjectStore.java:355)
>>>> -
>> org.apache.isis.core.runtime.system.transaction.IsisTransaction#doFlush(IsisTransaction.java:365)
>>>> -
>> org.apache.isis.core.runtime.system.transaction.IsisTransaction#flush(IsisTransaction.java:331)
>>>> -
>> org.apache.isis.core.runtime.system.transaction.IsisTransactionManager#flushTransaction(IsisTransactionManager.java:298)
>>>> -
>> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#executeActionOnTargetAndProcessResults(ActionPanel.java:181)
>>>> -
>> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#executeActionAndProcessResults(ActionPanel.java:137)
>>>> -
>> org.apache.isis.viewer.wicket.ui.components.actions.ActionParametersFormPanel$ActionParameterForm$1#onSubmit(ActionParametersFormPanel.java:126)
>>>> -
>> org.apache.wicket.markup.html.form.Form#delegateSubmit(Form.java:1253)
>>>> - org.apache.wicket.markup.html.form.Form#process(Form.java:925)
>>>> -
>> org.apache.wicket.markup.html.form.Form#onFormSubmitted(Form.java:771)
>>>> -
>> org.apache.wicket.markup.html.form.Form#onFormSubmitted(Form.java:704)
>>>> -
>> sun.reflect.NativeMethodAccessorImpl#invoke0(NativeMethodAccessorImpl.java:-2)
>>>> -
>> sun.reflect.NativeMethodAccessorImpl#invoke(NativeMethodAccessorImpl.java:39)
>>>> -
>> sun.reflect.DelegatingMethodAccessorImpl#invoke(DelegatingMethodAccessorImpl.java:25)
>>>> - java.lang.reflect.Method#invoke(Method.java:597)
>>>> -
>> org.apache.wicket.RequestListenerInterface#internalInvoke(RequestListenerInterface.java:258)
>>>> -
>> org.apache.wicket.RequestListenerInterface#invoke(RequestListenerInterface.java:216)
>>>> -
>> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#invokeListener(ListenerInterfaceRequestHandler.java:240)
>>>> -
>> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#respond(ListenerInterfaceRequestHandler.java:226)
>>>> -
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor#respond(RequestCycle.java:861)
>>>> -
>> org.apache.wicket.request.RequestHandlerStack#execute(RequestHandlerStack.java:64)
>>>> -
>> org.apache.wicket.request.cycle.RequestCycle#execute(RequestCycle.java:261)
>>>> -
>> org.apache.wicket.request.cycle.RequestCycle#processRequest(RequestCycle.java:218)
>>>> -
>> org.apache.wicket.request.cycle.RequestCycle#processRequestAndDetach(RequestCycle.java:289)
>>>> -
>> org.apache.wicket.protocol.http.WicketFilter#processRequestCycle(WicketFilter.java:259)
>>>> -
>> org.apache.wicket.protocol.http.WicketFilter#processRequest(WicketFilter.java:201)
>>>> -
>> org.apache.wicket.protocol.http.WicketFilter#doFilter(WicketFilter.java:282)
>>>> -
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1326)
>>>> -
>> org.apache.shiro.web.servlet.AbstractShiroFilter#executeChain(AbstractShiroFilter.java:449)
>>>> -
>> org.apache.shiro.web.servlet.AbstractShiroFilter$1#call(AbstractShiroFilter.java:365)
>>>> -
>> org.apache.shiro.subject.support.SubjectCallable#doCall(SubjectCallable.java:90)
>>>> -
>> org.apache.shiro.subject.support.SubjectCallable#call(SubjectCallable.java:83)
>>>> -
>> org.apache.shiro.subject.support.DelegatingSubject#execute(DelegatingSubject.java:383)
>>>> -
>> org.apache.shiro.web.servlet.AbstractShiroFilter#doFilterInternal(AbstractShiroFilter.java:362)
>>>> -
>> org.apache.shiro.web.servlet.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:125)
>>>> -
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1326)
>>>> -
>> org.eclipse.jetty.servlet.ServletHandler#doHandle(ServletHandler.java:479)
>>>> -
>> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:119)
>>>> -
>> org.eclipse.jetty.security.SecurityHandler#handle(SecurityHandler.java:520)
>>>> -
>> org.eclipse.jetty.server.session.SessionHandler#doHandle(SessionHandler.java:227)
>>>> -
>> org.eclipse.jetty.server.handler.ContextHandler#doHandle(ContextHandler.java:940)
>>>> -
>> org.eclipse.jetty.servlet.ServletHandler#doScope(ServletHandler.java:409)
>>>> -
>> org.eclipse.jetty.server.session.SessionHandler#doScope(SessionHandler.java:186)
>>>> -
>> org.eclipse.jetty.server.handler.ContextHandler#doScope(ContextHandler.java:874)
>>>> -
>> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:117)
>>>> -
>> org.eclipse.jetty.server.handler.ContextHandlerCollection#handle(ContextHandlerCollection.java:250)
>>>> -
>> org.eclipse.jetty.server.handler.HandlerCollection#handle(HandlerCollection.java:149)
>>>> -
>> org.eclipse.jetty.server.handler.HandlerWrapper#handle(HandlerWrapper.java:110)
>>>> - org.eclipse.jetty.server.Server#handle(Server.java:349)
>>>> -
>> org.eclipse.jetty.server.HttpConnection#handleRequest(HttpConnection.java:441)
>>>> -
>> org.eclipse.jetty.server.HttpConnection$RequestHandler#content(HttpConnection.java:921)
>>>> - org.eclipse.jetty.http.HttpParser#parseNext(HttpParser.java:784)
>>>> - org.eclipse.jetty.http.HttpParser#parseAvailable(HttpParser.java:223)
>>>> -
>> org.eclipse.jetty.server.AsyncHttpConnection#handle(AsyncHttpConnection.java:46)
>>>> -
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint#handle(SelectChannelEndPoint.java:545)
>>>> -
>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1#run(SelectChannelEndPoint.java:43)
>>>> -
>> org.eclipse.jetty.util.thread.QueuedThreadPool#runJob(QueuedThreadPool.java:598)
>>>> -
>> org.eclipse.jetty.util.thread.QueuedThreadPool$3#run(QueuedThreadPool.java:533)
>>>> - java.lang.Thread#run(Thread.java:680)
>>>>
>>>> POWERED BY: APACHE ISIS <http://isis.apache.org/>
>>

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