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Posted to user@cayenne.apache.org by Emilian Bold <em...@gmail.com> on 2007/09/12 17:18:54 UTC
DataRowStore.sendUpdateNotification NullPointerException
Hy,
I keep getting this exception:
java.lang.NullPointerException
at org.apache.cayenne.access.DataRowStore.sendUpdateNotification(DataRowStore.java:673)
at org.apache.cayenne.access.DataRowStore.processSnapshotChanges(DataRowStore.java:538)
at org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects(DataRowStore.java:278)
at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows(ObjectResolver.java:121)
at org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataRows(ObjectResolver.java:97)
at org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConversion(DataDomainQueryAction.java:319)
at org.apache.cayenne.access.DataDomainQueryAction.execute(DataDomainQueryAction.java:116)
at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
at org.apache.cayenne.util.ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:217)
at org.apache.cayenne.access.DataContextQueryAction.execute(DataContextQueryAction.java:54)
at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:1387)
at org.apache.cayenne.access.DataContext.performQuery(DataContext.java:1376)
...
on Cayenne 2.0.2.
This seems to happen always for the same Local EJB, while other Local
EJBs that use Cayenne in the same way seem to work. From a previous
email, it seems this has something to do with the serialization of the
objectStore.
What can I do to get rid of this ?
Thanks,
Emilian Bold
--
Emilian Bold
+40 740235562
http://www.emilianbold.ro
Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
Thanks for the info. Still not sure what we are going to do about
though...
[FYI, for the actual patch you can check subversion tab in Jira]
https://issues.apache.org/cayenne/browse/CAY-796?
page=com.atlassian.jira.plugin.ext.subversion:subversion-commits-
tabpanel
Andrus
On Oct 17, 2007, at 9:54 AM, Emilian Bold wrote:
> Hy,
>
> I just tested my code with the 2.0.4 jar from the link you gave me
> (and the 2.0.4 official release). It still throws that
> NullPointerException if I don't init the EventManager properly.
>
> So I think CAY-796 doesn't solve this as it's not actually a
> serialization issue, just a null EventManager that's propagated to the
> children. (I assume your patch was some readResolve() of some kind so
> it's not so unexpected for me to still have the NPE).
>
> Emilian
>
>
> On 10/8/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>> Before we make any other changes, could you confirm that with a
>>> CAY-796 fix you can use DataDomain without EventManager?
>>
>> BTW, while the Cayenne developers are voting to make an official
>> 2.0.4 release, you can download the unofficial release files from
>> here:
>>
>> http://people.apache.org/~aadamchik/release/2.0.4/
>>
>> Andrus
>>
>>
>> On Oct 8, 2007, at 11:11 AM, Andrus Adamchik wrote:
>>> Hi Emilian,
>>>
>>> I agree with your general point about the obscure nature of this
>>> behavior. However CAY-796 fix was already supposed to address the
>>> underlying deserialization bug (something I did not consider in my
>>> previous reply). Before we make any other changes, could you
>>> confirm that with a CAY-796 fix you can use DataDomain without
>>> EventManager?
>>>
>>> Andrus
>>>
>>>
>>> On Oct 7, 2007, at 1:54 AM, Emilian Bold wrote:
>>>> Well, not quite a cayenne "bug" just a design decision that
>>>> impacts API users.
>>>>
>>>> I don't *need* to listen to events to why am I forced to set a
>>>> manager
>>>> ? Not to mention there's no warning and the 1st error I got sent
>>>> me on
>>>> a serialization wild goose chase.
>>>>
>>>> That was my whole idea: just use some default if no manager
>>>> provided.
>>>>
>>>> Emilian
>>>>
>>>> On 10/4/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>>>> I see. Yes, EventManager needs to be provided to the
>>>>> DataDomain. So
>>>>> this is not a bug in Cayenne, and I am not sure how we can
>>>>> "fix" it.
>>>>> Injection of EventManager is tied to the lifecycle, so using an
>>>>> arbitrary EM doesn't seem to be a good solution. Maybe we'll
>>>>> simply
>>>>> document this behavior via Javadocs....
>>>>>
>>>>> A side note regarding the *default* EventManager, there are
>>>>> plans to
>>>>> deprecate and avoid using it in Cayenne internally, as the
>>>>> singleton
>>>>> makes configuration much less flexible.
>>>>>
>>>>> Andrus
>>>>>
>>>>> On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
>>>>>
>>>>>> I finally figured out what my bug was (it wasn't CAY-796
>>>>>> actually).
>>>>>>
>>>>>> See https://issues.apache.org/cayenne/browse/CAY-871
>>>>>>
>>>>>> Emilian
>>>>>>
>>>>>> On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
>>>>>>> Thanks, that's great. I'll wait for the official 2.0.4 as I've
>>>>>>> found a
>>>>>>> workaround in my situation (still trying to figure out the exact
>>>>>>> cause, I think some rich-client is serializing
>>>>>>> CayenneDataObjects
>>>>>>> directly instead of client classes).
>>>>>>>
>>>>>>> Emilian
>>>>>>>
>>>>>>>
>>>>>>> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>>>>>>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
>>>>>>>> version you can either build the code from Subversion [1,2] or
>>>>>>>> wait
>>>>>>>> till 2.0.4 comes out.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Andrus
>>>>>>>>
>>>>>>>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
>>>>>>>> STABLE-2.0/
>>>>>>>> [2] http://cayenne.apache.org/legacy-ant-build.html
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
>>>>>>>>> Hi there,
>>>>>>>>>
>>>>>>>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed
>>>>>>>>> it, but
>>>>>>>>> looks like we did not. Ok, adding that to a TODO list...
>>>>>>>>>
>>>>>>>>> In the meantime try to check the "Use Shared Cache" checkbox
>>>>>>>>> in the
>>>>>>>>> Modeler - this would hopefully take care of the problem (and
>>>>>>>>> probably improve your performance if you could live with a
>>>>>>>>> bit of
>>>>>>>>> object caching in your app).
>>>>>>>>>
>>>>>>>>> Andrus
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>>>>>>>>>
>>>>>>>>>> Hy,
>>>>>>>>>>
>>>>>>>>>> I keep getting this exception:
>>>>>>>>>>
>>>>>>>>>> java.lang.NullPointerException
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>>>>>>>>>> (DataRowStore.java:673)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>>>>>>>>>> (DataRowStore.java:538)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObj
>>>>>>>>>> ec
>>>>>>>>>> ts
>>>>>>>>>> (DataRowStore.java:278)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>>>>>>>>>> (ObjectResolver.java:121)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsF
>>>>>>>>>> ro
>>>>>>>>>> mDa
>>>>>>>>>> taR
>>>>>>>>>> ows(ObjectResolver.java:97)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObje
>>>>>>>>>> ct
>>>>>>>>>> Con
>>>>>>>>>> ver
>>>>>>>>>> sion(DataDomainQueryAction.java:319)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataDomainQueryAction.execute
>>>>>>>>>> (DataDomainQueryAction.java:116)
>>>>>>>>>> at org.apache.cayenne.access.DataDomain.onQuery
>>>>>>>>>> (DataDomain.java:730)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>>>>>>>>>> (ObjectContextQueryAction.java:217)
>>>>>>>>>> at
>>>>>>>>>> org.apache.cayenne.access.DataContextQueryAction.execute
>>>>>>>>>> (DataContextQueryAction.java:54)
>>>>>>>>>> at org.apache.cayenne.access.DataContext.onQuery
>>>>>>>>>> (DataContext.java:
>>>>>>>>>> 1387)
>>>>>>>>>> at org.apache.cayenne.access.DataContext.performQuery
>>>>>>>>>> (DataContext.java:1376)
>>>>>>>>>> ...
>>>>>>>>>>
>>>>>>>>>> on Cayenne 2.0.2.
>>>>>>>>>>
>>>>>>>>>> This seems to happen always for the same Local EJB, while
>>>>>>>>>> other
>>>>>>>>>> Local
>>>>>>>>>> EJBs that use Cayenne in the same way seem to work. From a
>>>>>>>>>> previous
>>>>>>>>>> email, it seems this has something to do with the
>>>>>>>>>> serialization of
>>>>>>>>>> the
>>>>>>>>>> objectStore.
>>>>>>>>>>
>>>>>>>>>> What can I do to get rid of this ?
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>> Emilian Bold
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Emilian Bold
>>>>>>>>>> +40 740235562
>>>>>>>>>> http://www.emilianbold.ro
>>>>>>>>>>
>>>>>>>>>> Java and NetBeans Platform-loving consulting services from
>>>>>>>>>> Timisoara, Romania.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Emilian Bold
>>>>>>> +40 740235562
>>>>>>> http://www.emilianbold.ro
>>>>>>>
>>>>>>> Java and NetBeans Platform-loving consulting services from
>>>>>>> Timisoara, Romania.
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Emilian Bold
>>>>>> +40 740235562
>>>>>> http://www.emilianbold.ro
>>>>>>
>>>>>> Java and NetBeans Platform-loving consulting services from
>>>>>> Timisoara, Romania.
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Emilian Bold
>>>> +40 740235562
>>>> http://www.emilianbold.ro
>>>>
>>>> Java and NetBeans Platform-loving consulting services from
>>>> Timisoara, Romania.
>>>>
>>>
>>>
>>
>>
>
>
> --
> Emilian Bold
> +40 740235562
> http://www.emilianbold.ro
>
> Java and NetBeans Platform-loving consulting services from
> Timisoara, Romania.
>
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Emilian Bold <em...@gmail.com>.
Hy,
I just tested my code with the 2.0.4 jar from the link you gave me
(and the 2.0.4 official release). It still throws that
NullPointerException if I don't init the EventManager properly.
So I think CAY-796 doesn't solve this as it's not actually a
serialization issue, just a null EventManager that's propagated to the
children. (I assume your patch was some readResolve() of some kind so
it's not so unexpected for me to still have the NPE).
Emilian
On 10/8/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> > Before we make any other changes, could you confirm that with a
> > CAY-796 fix you can use DataDomain without EventManager?
>
> BTW, while the Cayenne developers are voting to make an official
> 2.0.4 release, you can download the unofficial release files from here:
>
> http://people.apache.org/~aadamchik/release/2.0.4/
>
> Andrus
>
>
> On Oct 8, 2007, at 11:11 AM, Andrus Adamchik wrote:
> > Hi Emilian,
> >
> > I agree with your general point about the obscure nature of this
> > behavior. However CAY-796 fix was already supposed to address the
> > underlying deserialization bug (something I did not consider in my
> > previous reply). Before we make any other changes, could you
> > confirm that with a CAY-796 fix you can use DataDomain without
> > EventManager?
> >
> > Andrus
> >
> >
> > On Oct 7, 2007, at 1:54 AM, Emilian Bold wrote:
> >> Well, not quite a cayenne "bug" just a design decision that
> >> impacts API users.
> >>
> >> I don't *need* to listen to events to why am I forced to set a
> >> manager
> >> ? Not to mention there's no warning and the 1st error I got sent
> >> me on
> >> a serialization wild goose chase.
> >>
> >> That was my whole idea: just use some default if no manager provided.
> >>
> >> Emilian
> >>
> >> On 10/4/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> >>> I see. Yes, EventManager needs to be provided to the DataDomain. So
> >>> this is not a bug in Cayenne, and I am not sure how we can "fix" it.
> >>> Injection of EventManager is tied to the lifecycle, so using an
> >>> arbitrary EM doesn't seem to be a good solution. Maybe we'll simply
> >>> document this behavior via Javadocs....
> >>>
> >>> A side note regarding the *default* EventManager, there are plans to
> >>> deprecate and avoid using it in Cayenne internally, as the singleton
> >>> makes configuration much less flexible.
> >>>
> >>> Andrus
> >>>
> >>> On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
> >>>
> >>>> I finally figured out what my bug was (it wasn't CAY-796 actually).
> >>>>
> >>>> See https://issues.apache.org/cayenne/browse/CAY-871
> >>>>
> >>>> Emilian
> >>>>
> >>>> On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
> >>>>> Thanks, that's great. I'll wait for the official 2.0.4 as I've
> >>>>> found a
> >>>>> workaround in my situation (still trying to figure out the exact
> >>>>> cause, I think some rich-client is serializing CayenneDataObjects
> >>>>> directly instead of client classes).
> >>>>>
> >>>>> Emilian
> >>>>>
> >>>>>
> >>>>> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> >>>>>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
> >>>>>> version you can either build the code from Subversion [1,2] or
> >>>>>> wait
> >>>>>> till 2.0.4 comes out.
> >>>>>>
> >>>>>> Cheers,
> >>>>>> Andrus
> >>>>>>
> >>>>>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
> >>>>>> STABLE-2.0/
> >>>>>> [2] http://cayenne.apache.org/legacy-ant-build.html
> >>>>>>
> >>>>>>
> >>>>>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
> >>>>>>> Hi there,
> >>>>>>>
> >>>>>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed
> >>>>>>> it, but
> >>>>>>> looks like we did not. Ok, adding that to a TODO list...
> >>>>>>>
> >>>>>>> In the meantime try to check the "Use Shared Cache" checkbox
> >>>>>>> in the
> >>>>>>> Modeler - this would hopefully take care of the problem (and
> >>>>>>> probably improve your performance if you could live with a
> >>>>>>> bit of
> >>>>>>> object caching in your app).
> >>>>>>>
> >>>>>>> Andrus
> >>>>>>>
> >>>>>>>
> >>>>>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
> >>>>>>>
> >>>>>>>
> >>>>>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
> >>>>>>>
> >>>>>>>> Hy,
> >>>>>>>>
> >>>>>>>> I keep getting this exception:
> >>>>>>>>
> >>>>>>>> java.lang.NullPointerException
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
> >>>>>>>> (DataRowStore.java:673)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
> >>>>>>>> (DataRowStore.java:538)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjec
> >>>>>>>> ts
> >>>>>>>> (DataRowStore.java:278)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
> >>>>>>>> (ObjectResolver.java:121)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFro
> >>>>>>>> mDa
> >>>>>>>> taR
> >>>>>>>> ows(ObjectResolver.java:97)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObject
> >>>>>>>> Con
> >>>>>>>> ver
> >>>>>>>> sion(DataDomainQueryAction.java:319)
> >>>>>>>> at org.apache.cayenne.access.DataDomainQueryAction.execute
> >>>>>>>> (DataDomainQueryAction.java:116)
> >>>>>>>> at org.apache.cayenne.access.DataDomain.onQuery
> >>>>>>>> (DataDomain.java:730)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.util.ObjectContextQueryAction.runQuery
> >>>>>>>> (ObjectContextQueryAction.java:217)
> >>>>>>>> at
> >>>>>>>> org.apache.cayenne.access.DataContextQueryAction.execute
> >>>>>>>> (DataContextQueryAction.java:54)
> >>>>>>>> at org.apache.cayenne.access.DataContext.onQuery
> >>>>>>>> (DataContext.java:
> >>>>>>>> 1387)
> >>>>>>>> at org.apache.cayenne.access.DataContext.performQuery
> >>>>>>>> (DataContext.java:1376)
> >>>>>>>> ...
> >>>>>>>>
> >>>>>>>> on Cayenne 2.0.2.
> >>>>>>>>
> >>>>>>>> This seems to happen always for the same Local EJB, while other
> >>>>>>>> Local
> >>>>>>>> EJBs that use Cayenne in the same way seem to work. From a
> >>>>>>>> previous
> >>>>>>>> email, it seems this has something to do with the
> >>>>>>>> serialization of
> >>>>>>>> the
> >>>>>>>> objectStore.
> >>>>>>>>
> >>>>>>>> What can I do to get rid of this ?
> >>>>>>>>
> >>>>>>>> Thanks,
> >>>>>>>> Emilian Bold
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> --
> >>>>>>>> Emilian Bold
> >>>>>>>> +40 740235562
> >>>>>>>> http://www.emilianbold.ro
> >>>>>>>>
> >>>>>>>> Java and NetBeans Platform-loving consulting services from
> >>>>>>>> Timisoara, Romania.
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Emilian Bold
> >>>>> +40 740235562
> >>>>> http://www.emilianbold.ro
> >>>>>
> >>>>> Java and NetBeans Platform-loving consulting services from
> >>>>> Timisoara, Romania.
> >>>>>
> >>>>
> >>>>
> >>>> --
> >>>> Emilian Bold
> >>>> +40 740235562
> >>>> http://www.emilianbold.ro
> >>>>
> >>>> Java and NetBeans Platform-loving consulting services from
> >>>> Timisoara, Romania.
> >>>>
> >>>
> >>>
> >>
> >>
> >> --
> >> Emilian Bold
> >> +40 740235562
> >> http://www.emilianbold.ro
> >>
> >> Java and NetBeans Platform-loving consulting services from
> >> Timisoara, Romania.
> >>
> >
> >
>
>
--
Emilian Bold
+40 740235562
http://www.emilianbold.ro
Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
> Before we make any other changes, could you confirm that with a
> CAY-796 fix you can use DataDomain without EventManager?
BTW, while the Cayenne developers are voting to make an official
2.0.4 release, you can download the unofficial release files from here:
http://people.apache.org/~aadamchik/release/2.0.4/
Andrus
On Oct 8, 2007, at 11:11 AM, Andrus Adamchik wrote:
> Hi Emilian,
>
> I agree with your general point about the obscure nature of this
> behavior. However CAY-796 fix was already supposed to address the
> underlying deserialization bug (something I did not consider in my
> previous reply). Before we make any other changes, could you
> confirm that with a CAY-796 fix you can use DataDomain without
> EventManager?
>
> Andrus
>
>
> On Oct 7, 2007, at 1:54 AM, Emilian Bold wrote:
>> Well, not quite a cayenne "bug" just a design decision that
>> impacts API users.
>>
>> I don't *need* to listen to events to why am I forced to set a
>> manager
>> ? Not to mention there's no warning and the 1st error I got sent
>> me on
>> a serialization wild goose chase.
>>
>> That was my whole idea: just use some default if no manager provided.
>>
>> Emilian
>>
>> On 10/4/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>> I see. Yes, EventManager needs to be provided to the DataDomain. So
>>> this is not a bug in Cayenne, and I am not sure how we can "fix" it.
>>> Injection of EventManager is tied to the lifecycle, so using an
>>> arbitrary EM doesn't seem to be a good solution. Maybe we'll simply
>>> document this behavior via Javadocs....
>>>
>>> A side note regarding the *default* EventManager, there are plans to
>>> deprecate and avoid using it in Cayenne internally, as the singleton
>>> makes configuration much less flexible.
>>>
>>> Andrus
>>>
>>> On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
>>>
>>>> I finally figured out what my bug was (it wasn't CAY-796 actually).
>>>>
>>>> See https://issues.apache.org/cayenne/browse/CAY-871
>>>>
>>>> Emilian
>>>>
>>>> On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
>>>>> Thanks, that's great. I'll wait for the official 2.0.4 as I've
>>>>> found a
>>>>> workaround in my situation (still trying to figure out the exact
>>>>> cause, I think some rich-client is serializing CayenneDataObjects
>>>>> directly instead of client classes).
>>>>>
>>>>> Emilian
>>>>>
>>>>>
>>>>> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>>>>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
>>>>>> version you can either build the code from Subversion [1,2] or
>>>>>> wait
>>>>>> till 2.0.4 comes out.
>>>>>>
>>>>>> Cheers,
>>>>>> Andrus
>>>>>>
>>>>>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
>>>>>> STABLE-2.0/
>>>>>> [2] http://cayenne.apache.org/legacy-ant-build.html
>>>>>>
>>>>>>
>>>>>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
>>>>>>> Hi there,
>>>>>>>
>>>>>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed
>>>>>>> it, but
>>>>>>> looks like we did not. Ok, adding that to a TODO list...
>>>>>>>
>>>>>>> In the meantime try to check the "Use Shared Cache" checkbox
>>>>>>> in the
>>>>>>> Modeler - this would hopefully take care of the problem (and
>>>>>>> probably improve your performance if you could live with a
>>>>>>> bit of
>>>>>>> object caching in your app).
>>>>>>>
>>>>>>> Andrus
>>>>>>>
>>>>>>>
>>>>>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
>>>>>>>
>>>>>>>
>>>>>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>>>>>>>
>>>>>>>> Hy,
>>>>>>>>
>>>>>>>> I keep getting this exception:
>>>>>>>>
>>>>>>>> java.lang.NullPointerException
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>>>>>>>> (DataRowStore.java:673)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>>>>>>>> (DataRowStore.java:538)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjec
>>>>>>>> ts
>>>>>>>> (DataRowStore.java:278)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>>>>>>>> (ObjectResolver.java:121)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFro
>>>>>>>> mDa
>>>>>>>> taR
>>>>>>>> ows(ObjectResolver.java:97)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObject
>>>>>>>> Con
>>>>>>>> ver
>>>>>>>> sion(DataDomainQueryAction.java:319)
>>>>>>>> at org.apache.cayenne.access.DataDomainQueryAction.execute
>>>>>>>> (DataDomainQueryAction.java:116)
>>>>>>>> at org.apache.cayenne.access.DataDomain.onQuery
>>>>>>>> (DataDomain.java:730)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>>>>>>>> (ObjectContextQueryAction.java:217)
>>>>>>>> at
>>>>>>>> org.apache.cayenne.access.DataContextQueryAction.execute
>>>>>>>> (DataContextQueryAction.java:54)
>>>>>>>> at org.apache.cayenne.access.DataContext.onQuery
>>>>>>>> (DataContext.java:
>>>>>>>> 1387)
>>>>>>>> at org.apache.cayenne.access.DataContext.performQuery
>>>>>>>> (DataContext.java:1376)
>>>>>>>> ...
>>>>>>>>
>>>>>>>> on Cayenne 2.0.2.
>>>>>>>>
>>>>>>>> This seems to happen always for the same Local EJB, while other
>>>>>>>> Local
>>>>>>>> EJBs that use Cayenne in the same way seem to work. From a
>>>>>>>> previous
>>>>>>>> email, it seems this has something to do with the
>>>>>>>> serialization of
>>>>>>>> the
>>>>>>>> objectStore.
>>>>>>>>
>>>>>>>> What can I do to get rid of this ?
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Emilian Bold
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Emilian Bold
>>>>>>>> +40 740235562
>>>>>>>> http://www.emilianbold.ro
>>>>>>>>
>>>>>>>> Java and NetBeans Platform-loving consulting services from
>>>>>>>> Timisoara, Romania.
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Emilian Bold
>>>>> +40 740235562
>>>>> http://www.emilianbold.ro
>>>>>
>>>>> Java and NetBeans Platform-loving consulting services from
>>>>> Timisoara, Romania.
>>>>>
>>>>
>>>>
>>>> --
>>>> Emilian Bold
>>>> +40 740235562
>>>> http://www.emilianbold.ro
>>>>
>>>> Java and NetBeans Platform-loving consulting services from
>>>> Timisoara, Romania.
>>>>
>>>
>>>
>>
>>
>> --
>> Emilian Bold
>> +40 740235562
>> http://www.emilianbold.ro
>>
>> Java and NetBeans Platform-loving consulting services from
>> Timisoara, Romania.
>>
>
>
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
Hi Emilian,
I agree with your general point about the obscure nature of this
behavior. However CAY-796 fix was already supposed to address the
underlying deserialization bug (something I did not consider in my
previous reply). Before we make any other changes, could you confirm
that with a CAY-796 fix you can use DataDomain without EventManager?
Andrus
On Oct 7, 2007, at 1:54 AM, Emilian Bold wrote:
> Well, not quite a cayenne "bug" just a design decision that impacts
> API users.
>
> I don't *need* to listen to events to why am I forced to set a manager
> ? Not to mention there's no warning and the 1st error I got sent me on
> a serialization wild goose chase.
>
> That was my whole idea: just use some default if no manager provided.
>
> Emilian
>
> On 10/4/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>> I see. Yes, EventManager needs to be provided to the DataDomain. So
>> this is not a bug in Cayenne, and I am not sure how we can "fix" it.
>> Injection of EventManager is tied to the lifecycle, so using an
>> arbitrary EM doesn't seem to be a good solution. Maybe we'll simply
>> document this behavior via Javadocs....
>>
>> A side note regarding the *default* EventManager, there are plans to
>> deprecate and avoid using it in Cayenne internally, as the singleton
>> makes configuration much less flexible.
>>
>> Andrus
>>
>> On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
>>
>>> I finally figured out what my bug was (it wasn't CAY-796 actually).
>>>
>>> See https://issues.apache.org/cayenne/browse/CAY-871
>>>
>>> Emilian
>>>
>>> On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
>>>> Thanks, that's great. I'll wait for the official 2.0.4 as I've
>>>> found a
>>>> workaround in my situation (still trying to figure out the exact
>>>> cause, I think some rich-client is serializing CayenneDataObjects
>>>> directly instead of client classes).
>>>>
>>>> Emilian
>>>>
>>>>
>>>> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>>>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
>>>>> version you can either build the code from Subversion [1,2] or
>>>>> wait
>>>>> till 2.0.4 comes out.
>>>>>
>>>>> Cheers,
>>>>> Andrus
>>>>>
>>>>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
>>>>> STABLE-2.0/
>>>>> [2] http://cayenne.apache.org/legacy-ant-build.html
>>>>>
>>>>>
>>>>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
>>>>>> Hi there,
>>>>>>
>>>>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed it,
>>>>>> but
>>>>>> looks like we did not. Ok, adding that to a TODO list...
>>>>>>
>>>>>> In the meantime try to check the "Use Shared Cache" checkbox
>>>>>> in the
>>>>>> Modeler - this would hopefully take care of the problem (and
>>>>>> probably improve your performance if you could live with a bit of
>>>>>> object caching in your app).
>>>>>>
>>>>>> Andrus
>>>>>>
>>>>>>
>>>>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
>>>>>>
>>>>>>
>>>>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>>>>>>
>>>>>>> Hy,
>>>>>>>
>>>>>>> I keep getting this exception:
>>>>>>>
>>>>>>> java.lang.NullPointerException
>>>>>>> at
>>>>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>>>>>>> (DataRowStore.java:673)
>>>>>>> at
>>>>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>>>>>>> (DataRowStore.java:538)
>>>>>>> at
>>>>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObject
>>>>>>> s
>>>>>>> (DataRowStore.java:278)
>>>>>>> at
>>>>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>>>>>>> (ObjectResolver.java:121)
>>>>>>> at
>>>>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFrom
>>>>>>> Da
>>>>>>> taR
>>>>>>> ows(ObjectResolver.java:97)
>>>>>>> at
>>>>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectC
>>>>>>> on
>>>>>>> ver
>>>>>>> sion(DataDomainQueryAction.java:319)
>>>>>>> at org.apache.cayenne.access.DataDomainQueryAction.execute
>>>>>>> (DataDomainQueryAction.java:116)
>>>>>>> at org.apache.cayenne.access.DataDomain.onQuery
>>>>>>> (DataDomain.java:730)
>>>>>>> at
>>>>>>> org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>>>>>>> (ObjectContextQueryAction.java:217)
>>>>>>> at org.apache.cayenne.access.DataContextQueryAction.execute
>>>>>>> (DataContextQueryAction.java:54)
>>>>>>> at org.apache.cayenne.access.DataContext.onQuery
>>>>>>> (DataContext.java:
>>>>>>> 1387)
>>>>>>> at org.apache.cayenne.access.DataContext.performQuery
>>>>>>> (DataContext.java:1376)
>>>>>>> ...
>>>>>>>
>>>>>>> on Cayenne 2.0.2.
>>>>>>>
>>>>>>> This seems to happen always for the same Local EJB, while other
>>>>>>> Local
>>>>>>> EJBs that use Cayenne in the same way seem to work. From a
>>>>>>> previous
>>>>>>> email, it seems this has something to do with the
>>>>>>> serialization of
>>>>>>> the
>>>>>>> objectStore.
>>>>>>>
>>>>>>> What can I do to get rid of this ?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Emilian Bold
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Emilian Bold
>>>>>>> +40 740235562
>>>>>>> http://www.emilianbold.ro
>>>>>>>
>>>>>>> Java and NetBeans Platform-loving consulting services from
>>>>>>> Timisoara, Romania.
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Emilian Bold
>>>> +40 740235562
>>>> http://www.emilianbold.ro
>>>>
>>>> Java and NetBeans Platform-loving consulting services from
>>>> Timisoara, Romania.
>>>>
>>>
>>>
>>> --
>>> Emilian Bold
>>> +40 740235562
>>> http://www.emilianbold.ro
>>>
>>> Java and NetBeans Platform-loving consulting services from
>>> Timisoara, Romania.
>>>
>>
>>
>
>
> --
> Emilian Bold
> +40 740235562
> http://www.emilianbold.ro
>
> Java and NetBeans Platform-loving consulting services from
> Timisoara, Romania.
>
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Emilian Bold <em...@gmail.com>.
Well, not quite a cayenne "bug" just a design decision that impacts API users.
I don't *need* to listen to events to why am I forced to set a manager
? Not to mention there's no warning and the 1st error I got sent me on
a serialization wild goose chase.
That was my whole idea: just use some default if no manager provided.
Emilian
On 10/4/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> I see. Yes, EventManager needs to be provided to the DataDomain. So
> this is not a bug in Cayenne, and I am not sure how we can "fix" it.
> Injection of EventManager is tied to the lifecycle, so using an
> arbitrary EM doesn't seem to be a good solution. Maybe we'll simply
> document this behavior via Javadocs....
>
> A side note regarding the *default* EventManager, there are plans to
> deprecate and avoid using it in Cayenne internally, as the singleton
> makes configuration much less flexible.
>
> Andrus
>
> On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
>
> > I finally figured out what my bug was (it wasn't CAY-796 actually).
> >
> > See https://issues.apache.org/cayenne/browse/CAY-871
> >
> > Emilian
> >
> > On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
> >> Thanks, that's great. I'll wait for the official 2.0.4 as I've
> >> found a
> >> workaround in my situation (still trying to figure out the exact
> >> cause, I think some rich-client is serializing CayenneDataObjects
> >> directly instead of client classes).
> >>
> >> Emilian
> >>
> >>
> >> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> >>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
> >>> version you can either build the code from Subversion [1,2] or wait
> >>> till 2.0.4 comes out.
> >>>
> >>> Cheers,
> >>> Andrus
> >>>
> >>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
> >>> STABLE-2.0/
> >>> [2] http://cayenne.apache.org/legacy-ant-build.html
> >>>
> >>>
> >>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
> >>>> Hi there,
> >>>>
> >>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
> >>>> looks like we did not. Ok, adding that to a TODO list...
> >>>>
> >>>> In the meantime try to check the "Use Shared Cache" checkbox in the
> >>>> Modeler - this would hopefully take care of the problem (and
> >>>> probably improve your performance if you could live with a bit of
> >>>> object caching in your app).
> >>>>
> >>>> Andrus
> >>>>
> >>>>
> >>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
> >>>>
> >>>>
> >>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
> >>>>
> >>>>> Hy,
> >>>>>
> >>>>> I keep getting this exception:
> >>>>>
> >>>>> java.lang.NullPointerException
> >>>>> at
> >>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
> >>>>> (DataRowStore.java:673)
> >>>>> at
> >>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
> >>>>> (DataRowStore.java:538)
> >>>>> at
> >>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
> >>>>> (DataRowStore.java:278)
> >>>>> at
> >>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
> >>>>> (ObjectResolver.java:121)
> >>>>> at
> >>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDa
> >>>>> taR
> >>>>> ows(ObjectResolver.java:97)
> >>>>> at
> >>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectCon
> >>>>> ver
> >>>>> sion(DataDomainQueryAction.java:319)
> >>>>> at org.apache.cayenne.access.DataDomainQueryAction.execute
> >>>>> (DataDomainQueryAction.java:116)
> >>>>> at org.apache.cayenne.access.DataDomain.onQuery
> >>>>> (DataDomain.java:730)
> >>>>> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
> >>>>> (ObjectContextQueryAction.java:217)
> >>>>> at org.apache.cayenne.access.DataContextQueryAction.execute
> >>>>> (DataContextQueryAction.java:54)
> >>>>> at org.apache.cayenne.access.DataContext.onQuery
> >>>>> (DataContext.java:
> >>>>> 1387)
> >>>>> at org.apache.cayenne.access.DataContext.performQuery
> >>>>> (DataContext.java:1376)
> >>>>> ...
> >>>>>
> >>>>> on Cayenne 2.0.2.
> >>>>>
> >>>>> This seems to happen always for the same Local EJB, while other
> >>>>> Local
> >>>>> EJBs that use Cayenne in the same way seem to work. From a
> >>>>> previous
> >>>>> email, it seems this has something to do with the serialization of
> >>>>> the
> >>>>> objectStore.
> >>>>>
> >>>>> What can I do to get rid of this ?
> >>>>>
> >>>>> Thanks,
> >>>>> Emilian Bold
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Emilian Bold
> >>>>> +40 740235562
> >>>>> http://www.emilianbold.ro
> >>>>>
> >>>>> Java and NetBeans Platform-loving consulting services from
> >>>>> Timisoara, Romania.
> >>>>>
> >>>>
> >>>>
> >>>
> >>>
> >>
> >>
> >> --
> >> Emilian Bold
> >> +40 740235562
> >> http://www.emilianbold.ro
> >>
> >> Java and NetBeans Platform-loving consulting services from
> >> Timisoara, Romania.
> >>
> >
> >
> > --
> > Emilian Bold
> > +40 740235562
> > http://www.emilianbold.ro
> >
> > Java and NetBeans Platform-loving consulting services from
> > Timisoara, Romania.
> >
>
>
--
Emilian Bold
+40 740235562
http://www.emilianbold.ro
Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
I see. Yes, EventManager needs to be provided to the DataDomain. So
this is not a bug in Cayenne, and I am not sure how we can "fix" it.
Injection of EventManager is tied to the lifecycle, so using an
arbitrary EM doesn't seem to be a good solution. Maybe we'll simply
document this behavior via Javadocs....
A side note regarding the *default* EventManager, there are plans to
deprecate and avoid using it in Cayenne internally, as the singleton
makes configuration much less flexible.
Andrus
On Oct 4, 2007, at 4:09 PM, Emilian Bold wrote:
> I finally figured out what my bug was (it wasn't CAY-796 actually).
>
> See https://issues.apache.org/cayenne/browse/CAY-871
>
> Emilian
>
> On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
>> Thanks, that's great. I'll wait for the official 2.0.4 as I've
>> found a
>> workaround in my situation (still trying to figure out the exact
>> cause, I think some rich-client is serializing CayenneDataObjects
>> directly instead of client classes).
>>
>> Emilian
>>
>>
>> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
>>> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
>>> version you can either build the code from Subversion [1,2] or wait
>>> till 2.0.4 comes out.
>>>
>>> Cheers,
>>> Andrus
>>>
>>> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/
>>> STABLE-2.0/
>>> [2] http://cayenne.apache.org/legacy-ant-build.html
>>>
>>>
>>> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
>>>> Hi there,
>>>>
>>>> Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
>>>> looks like we did not. Ok, adding that to a TODO list...
>>>>
>>>> In the meantime try to check the "Use Shared Cache" checkbox in the
>>>> Modeler - this would hopefully take care of the problem (and
>>>> probably improve your performance if you could live with a bit of
>>>> object caching in your app).
>>>>
>>>> Andrus
>>>>
>>>>
>>>> [1] https://issues.apache.org/cayenne/browse/CAY-796
>>>>
>>>>
>>>> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>>>>
>>>>> Hy,
>>>>>
>>>>> I keep getting this exception:
>>>>>
>>>>> java.lang.NullPointerException
>>>>> at
>>>>> org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>>>>> (DataRowStore.java:673)
>>>>> at
>>>>> org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>>>>> (DataRowStore.java:538)
>>>>> at
>>>>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
>>>>> (DataRowStore.java:278)
>>>>> at
>>>>> org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>>>>> (ObjectResolver.java:121)
>>>>> at
>>>>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDa
>>>>> taR
>>>>> ows(ObjectResolver.java:97)
>>>>> at
>>>>> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectCon
>>>>> ver
>>>>> sion(DataDomainQueryAction.java:319)
>>>>> at org.apache.cayenne.access.DataDomainQueryAction.execute
>>>>> (DataDomainQueryAction.java:116)
>>>>> at org.apache.cayenne.access.DataDomain.onQuery
>>>>> (DataDomain.java:730)
>>>>> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>>>>> (ObjectContextQueryAction.java:217)
>>>>> at org.apache.cayenne.access.DataContextQueryAction.execute
>>>>> (DataContextQueryAction.java:54)
>>>>> at org.apache.cayenne.access.DataContext.onQuery
>>>>> (DataContext.java:
>>>>> 1387)
>>>>> at org.apache.cayenne.access.DataContext.performQuery
>>>>> (DataContext.java:1376)
>>>>> ...
>>>>>
>>>>> on Cayenne 2.0.2.
>>>>>
>>>>> This seems to happen always for the same Local EJB, while other
>>>>> Local
>>>>> EJBs that use Cayenne in the same way seem to work. From a
>>>>> previous
>>>>> email, it seems this has something to do with the serialization of
>>>>> the
>>>>> objectStore.
>>>>>
>>>>> What can I do to get rid of this ?
>>>>>
>>>>> Thanks,
>>>>> Emilian Bold
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Emilian Bold
>>>>> +40 740235562
>>>>> http://www.emilianbold.ro
>>>>>
>>>>> Java and NetBeans Platform-loving consulting services from
>>>>> Timisoara, Romania.
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>> --
>> Emilian Bold
>> +40 740235562
>> http://www.emilianbold.ro
>>
>> Java and NetBeans Platform-loving consulting services from
>> Timisoara, Romania.
>>
>
>
> --
> Emilian Bold
> +40 740235562
> http://www.emilianbold.ro
>
> Java and NetBeans Platform-loving consulting services from
> Timisoara, Romania.
>
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Emilian Bold <em...@gmail.com>.
I finally figured out what my bug was (it wasn't CAY-796 actually).
See https://issues.apache.org/cayenne/browse/CAY-871
Emilian
On 9/17/07, Emilian Bold <em...@gmail.com> wrote:
> Thanks, that's great. I'll wait for the official 2.0.4 as I've found a
> workaround in my situation (still trying to figure out the exact
> cause, I think some rich-client is serializing CayenneDataObjects
> directly instead of client classes).
>
> Emilian
>
>
> On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> > Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
> > version you can either build the code from Subversion [1,2] or wait
> > till 2.0.4 comes out.
> >
> > Cheers,
> > Andrus
> >
> > [1] http://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-2.0/
> > [2] http://cayenne.apache.org/legacy-ant-build.html
> >
> >
> > On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
> > > Hi there,
> > >
> > > Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
> > > looks like we did not. Ok, adding that to a TODO list...
> > >
> > > In the meantime try to check the "Use Shared Cache" checkbox in the
> > > Modeler - this would hopefully take care of the problem (and
> > > probably improve your performance if you could live with a bit of
> > > object caching in your app).
> > >
> > > Andrus
> > >
> > >
> > > [1] https://issues.apache.org/cayenne/browse/CAY-796
> > >
> > >
> > > On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
> > >
> > >> Hy,
> > >>
> > >> I keep getting this exception:
> > >>
> > >> java.lang.NullPointerException
> > >> at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
> > >> (DataRowStore.java:673)
> > >> at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
> > >> (DataRowStore.java:538)
> > >> at
> > >> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
> > >> (DataRowStore.java:278)
> > >> at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
> > >> (ObjectResolver.java:121)
> > >> at
> > >> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataR
> > >> ows(ObjectResolver.java:97)
> > >> at
> > >> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConver
> > >> sion(DataDomainQueryAction.java:319)
> > >> at org.apache.cayenne.access.DataDomainQueryAction.execute
> > >> (DataDomainQueryAction.java:116)
> > >> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
> > >> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
> > >> (ObjectContextQueryAction.java:217)
> > >> at org.apache.cayenne.access.DataContextQueryAction.execute
> > >> (DataContextQueryAction.java:54)
> > >> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:
> > >> 1387)
> > >> at org.apache.cayenne.access.DataContext.performQuery
> > >> (DataContext.java:1376)
> > >> ...
> > >>
> > >> on Cayenne 2.0.2.
> > >>
> > >> This seems to happen always for the same Local EJB, while other Local
> > >> EJBs that use Cayenne in the same way seem to work. From a previous
> > >> email, it seems this has something to do with the serialization of
> > >> the
> > >> objectStore.
> > >>
> > >> What can I do to get rid of this ?
> > >>
> > >> Thanks,
> > >> Emilian Bold
> > >>
> > >>
> > >>
> > >>
> > >> --
> > >> Emilian Bold
> > >> +40 740235562
> > >> http://www.emilianbold.ro
> > >>
> > >> Java and NetBeans Platform-loving consulting services from
> > >> Timisoara, Romania.
> > >>
> > >
> > >
> >
> >
>
>
> --
> Emilian Bold
> +40 740235562
> http://www.emilianbold.ro
>
> Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
>
--
Emilian Bold
+40 740235562
http://www.emilianbold.ro
Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Emilian Bold <em...@gmail.com>.
Thanks, that's great. I'll wait for the official 2.0.4 as I've found a
workaround in my situation (still trying to figure out the exact
cause, I think some rich-client is serializing CayenneDataObjects
directly instead of client classes).
Emilian
On 9/15/07, Andrus Adamchik <an...@objectstyle.org> wrote:
> Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
> version you can either build the code from Subversion [1,2] or wait
> till 2.0.4 comes out.
>
> Cheers,
> Andrus
>
> [1] http://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-2.0/
> [2] http://cayenne.apache.org/legacy-ant-build.html
>
>
> On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
> > Hi there,
> >
> > Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
> > looks like we did not. Ok, adding that to a TODO list...
> >
> > In the meantime try to check the "Use Shared Cache" checkbox in the
> > Modeler - this would hopefully take care of the problem (and
> > probably improve your performance if you could live with a bit of
> > object caching in your app).
> >
> > Andrus
> >
> >
> > [1] https://issues.apache.org/cayenne/browse/CAY-796
> >
> >
> > On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
> >
> >> Hy,
> >>
> >> I keep getting this exception:
> >>
> >> java.lang.NullPointerException
> >> at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
> >> (DataRowStore.java:673)
> >> at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
> >> (DataRowStore.java:538)
> >> at
> >> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
> >> (DataRowStore.java:278)
> >> at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
> >> (ObjectResolver.java:121)
> >> at
> >> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataR
> >> ows(ObjectResolver.java:97)
> >> at
> >> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConver
> >> sion(DataDomainQueryAction.java:319)
> >> at org.apache.cayenne.access.DataDomainQueryAction.execute
> >> (DataDomainQueryAction.java:116)
> >> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
> >> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
> >> (ObjectContextQueryAction.java:217)
> >> at org.apache.cayenne.access.DataContextQueryAction.execute
> >> (DataContextQueryAction.java:54)
> >> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:
> >> 1387)
> >> at org.apache.cayenne.access.DataContext.performQuery
> >> (DataContext.java:1376)
> >> ...
> >>
> >> on Cayenne 2.0.2.
> >>
> >> This seems to happen always for the same Local EJB, while other Local
> >> EJBs that use Cayenne in the same way seem to work. From a previous
> >> email, it seems this has something to do with the serialization of
> >> the
> >> objectStore.
> >>
> >> What can I do to get rid of this ?
> >>
> >> Thanks,
> >> Emilian Bold
> >>
> >>
> >>
> >>
> >> --
> >> Emilian Bold
> >> +40 740235562
> >> http://www.emilianbold.ro
> >>
> >> Java and NetBeans Platform-loving consulting services from
> >> Timisoara, Romania.
> >>
> >
> >
>
>
--
Emilian Bold
+40 740235562
http://www.emilianbold.ro
Java and NetBeans Platform-loving consulting services from Timisoara, Romania.
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
Ok, I fixed CAY-796 for 1.2, 2.0, 3.0 branches. To get a fixed
version you can either build the code from Subversion [1,2] or wait
till 2.0.4 comes out.
Cheers,
Andrus
[1] http://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-2.0/
[2] http://cayenne.apache.org/legacy-ant-build.html
On Sep 12, 2007, at 7:54 PM, Andrus Adamchik wrote:
> Hi there,
>
> Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
> looks like we did not. Ok, adding that to a TODO list...
>
> In the meantime try to check the "Use Shared Cache" checkbox in the
> Modeler - this would hopefully take care of the problem (and
> probably improve your performance if you could live with a bit of
> object caching in your app).
>
> Andrus
>
>
> [1] https://issues.apache.org/cayenne/browse/CAY-796
>
>
> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>
>> Hy,
>>
>> I keep getting this exception:
>>
>> java.lang.NullPointerException
>> at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>> (DataRowStore.java:673)
>> at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>> (DataRowStore.java:538)
>> at
>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
>> (DataRowStore.java:278)
>> at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>> (ObjectResolver.java:121)
>> at
>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataR
>> ows(ObjectResolver.java:97)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConver
>> sion(DataDomainQueryAction.java:319)
>> at org.apache.cayenne.access.DataDomainQueryAction.execute
>> (DataDomainQueryAction.java:116)
>> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
>> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>> (ObjectContextQueryAction.java:217)
>> at org.apache.cayenne.access.DataContextQueryAction.execute
>> (DataContextQueryAction.java:54)
>> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:
>> 1387)
>> at org.apache.cayenne.access.DataContext.performQuery
>> (DataContext.java:1376)
>> ...
>>
>> on Cayenne 2.0.2.
>>
>> This seems to happen always for the same Local EJB, while other Local
>> EJBs that use Cayenne in the same way seem to work. From a previous
>> email, it seems this has something to do with the serialization of
>> the
>> objectStore.
>>
>> What can I do to get rid of this ?
>>
>> Thanks,
>> Emilian Bold
>>
>>
>>
>>
>> --
>> Emilian Bold
>> +40 740235562
>> http://www.emilianbold.ro
>>
>> Java and NetBeans Platform-loving consulting services from
>> Timisoara, Romania.
>>
>
>
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Kevin Menard <km...@servprise.com>.
While CAY-796 wasn't addressed in 2.0.3, it probably wouldn't be a terrible
idea to upgrade to that either.
--
Kevin
On 9/12/07 12:54 PM, "Andrus Adamchik" <an...@objectstyle.org> wrote:
> Hi there,
>
> Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
> looks like we did not. Ok, adding that to a TODO list...
>
> In the meantime try to check the "Use Shared Cache" checkbox in the
> Modeler - this would hopefully take care of the problem (and probably
> improve your performance if you could live with a bit of object
> caching in your app).
>
> Andrus
>
>
> [1] https://issues.apache.org/cayenne/browse/CAY-796
>
>
> On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
>
>> Hy,
>>
>> I keep getting this exception:
>>
>> java.lang.NullPointerException
>> at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
>> (DataRowStore.java:673)
>> at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
>> (DataRowStore.java:538)
>> at
>> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
>> (DataRowStore.java:278)
>> at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
>> (ObjectResolver.java:121)
>> at
>> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataRo
>> ws(ObjectResolver.java:97)
>> at
>> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConvers
>> ion(DataDomainQueryAction.java:319)
>> at org.apache.cayenne.access.DataDomainQueryAction.execute
>> (DataDomainQueryAction.java:116)
>> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
>> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
>> (ObjectContextQueryAction.java:217)
>> at org.apache.cayenne.access.DataContextQueryAction.execute
>> (DataContextQueryAction.java:54)
>> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:
>> 1387)
>> at org.apache.cayenne.access.DataContext.performQuery
>> (DataContext.java:1376)
>> ...
>>
>> on Cayenne 2.0.2.
>>
>> This seems to happen always for the same Local EJB, while other Local
>> EJBs that use Cayenne in the same way seem to work. From a previous
>> email, it seems this has something to do with the serialization of the
>> objectStore.
>>
>> What can I do to get rid of this ?
>>
>> Thanks,
>> Emilian Bold
>>
>>
>>
>>
>> --
>> Emilian Bold
>> +40 740235562
>> http://www.emilianbold.ro
>>
>> Java and NetBeans Platform-loving consulting services from
>> Timisoara, Romania.
>>
>
--
Re: DataRowStore.sendUpdateNotification NullPointerException
Posted by Andrus Adamchik <an...@objectstyle.org>.
Hi there,
Yeah, looks like CAY-796 [1] to me. I could swear we fixed it, but
looks like we did not. Ok, adding that to a TODO list...
In the meantime try to check the "Use Shared Cache" checkbox in the
Modeler - this would hopefully take care of the problem (and probably
improve your performance if you could live with a bit of object
caching in your app).
Andrus
[1] https://issues.apache.org/cayenne/browse/CAY-796
On Sep 12, 2007, at 6:18 PM, Emilian Bold wrote:
> Hy,
>
> I keep getting this exception:
>
> java.lang.NullPointerException
> at org.apache.cayenne.access.DataRowStore.sendUpdateNotification
> (DataRowStore.java:673)
> at org.apache.cayenne.access.DataRowStore.processSnapshotChanges
> (DataRowStore.java:538)
> at
> org.apache.cayenne.access.DataRowStore.snapshotsUpdatedForObjects
> (DataRowStore.java:278)
> at org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
> (ObjectResolver.java:121)
> at
> org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataRo
> ws(ObjectResolver.java:97)
> at
> org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConvers
> ion(DataDomainQueryAction.java:319)
> at org.apache.cayenne.access.DataDomainQueryAction.execute
> (DataDomainQueryAction.java:116)
> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:730)
> at org.apache.cayenne.util.ObjectContextQueryAction.runQuery
> (ObjectContextQueryAction.java:217)
> at org.apache.cayenne.access.DataContextQueryAction.execute
> (DataContextQueryAction.java:54)
> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:
> 1387)
> at org.apache.cayenne.access.DataContext.performQuery
> (DataContext.java:1376)
> ...
>
> on Cayenne 2.0.2.
>
> This seems to happen always for the same Local EJB, while other Local
> EJBs that use Cayenne in the same way seem to work. From a previous
> email, it seems this has something to do with the serialization of the
> objectStore.
>
> What can I do to get rid of this ?
>
> Thanks,
> Emilian Bold
>
>
>
>
> --
> Emilian Bold
> +40 740235562
> http://www.emilianbold.ro
>
> Java and NetBeans Platform-loving consulting services from
> Timisoara, Romania.
>