[rules-users] java.lang.NullPointerException at org.drools.reteoo.ReteooFactHandleFactory.newFactHandle(ReteooFactHandleFactory.java:56)

[Carolina Pellecchia]

of course, the answers are:



> (1) Is the originally posted stack trace complete? What you have
> posted doesn't make sense.
>
it is the stack trace complete of this exception. Now I added some other
log lines.

If  you mean other thing, please let me know.

DEBUG [2012-07-23 16:27:51,374] [Thread-19] (*StorageManager.java:778*)
- Asking a con. to DB: jdbc:postgresql://tass-server/gsn_geo_dev_c => busy:
1, max-size: 8, idle: 2

     [*java*] DEBUG [2012-07-23 16:27:51,375] [Thread-19] (*
StorageManager.java:457*)     - Executing query: select * from __435941104
( Binary Field Linked:false)

     [*java*] DEBUG [2012-07-23 16:27:51,375] [Thread-19] (*
StorageManager.java:778*)     - Asking a con. to DB:
jdbc:postgresql://tass-server/gsn_geo_dev_c => busy: 2, max-size: 8, idle: 1

     [*java*] DEBUG [2012-07-23 16:27:51,382] [Thread-19] (*
ObservationFactory.java:226*)     -
org.dfms.model.observation.ACObservation/1343053671381/920/sim_bidv:1343053671381

     [*java*] ERROR [2012-07-23 16:27:51,385] [Thread-19] (*
ExpertSystemManager.java:162*)     - *java.lang.NullPointerException*

     [*java*] *java.lang.NullPointerException*

     [*java*]       at
org.drools.reteoo.ReteooFactHandleFactory.newFactHandle(*
ReteooFactHandleFactory.java:56*)

     [*java*]       at
org.drools.common.AbstractFactHandleFactory.newFactHandle(*
AbstractFactHandleFactory.java:80*)

     [*java*]       at
org.drools.common.AbstractFactHandleFactory.newFactHandle(*
AbstractFactHandleFactory.java:65*)

     [*java*]       at org.drools.common.NamedEntryPoint.createHandle(*
NamedEntryPoint.java:720*)

     [*java*]       at org.drools.common.NamedEntryPoint.insert(*
NamedEntryPoint.java:280*)

     [*java*]       at org.drools.common.NamedEntryPoint.insert(*
NamedEntryPoint.java:116*)

     [*java*]       at org.drools.common.NamedEntryPoint.insert(*
NamedEntryPoint.java:48*)

     [*java*]       at org.tass.utils.ExpertSystemManager.insertObservation(
*ExpertSystemManager.java:156*)

     [*java*]       at org.tass.vsensor.ExpertVS.dataAvailable(*
ExpertVS.java:59*)

     [*java*]       at gsn.beans.InputStream.executeQuery(*
InputStream.java:277*)

     [*java*]       at gsn.beans.StreamSource.windowSlided(*
StreamSource.java:325*)

     [*java*]       at
gsn.beans.windowing.SQLViewQueryRewriter.dataAvailable(*
SQLViewQueryRewriter.java:83*)

     [*java*]       at
gsn.beans.windowing.TupleBasedSlidingHandler.dataAvailable(*
TupleBasedSlidingHandler.java:56*)

     [*java*]       at gsn.wrappers.AbstractWrapper.postStreamElement(*
AbstractWrapper.java:222*)

     [*java*]       at
gsn.http.rest.LocalDeliveryWrapper.writeStreamElement(*
LocalDeliveryWrapper.java:147*)

     [*java*]       at
gsn.http.rest.DefaultDistributionRequest.deliverStreamElement(*
DefaultDistributionRequest.java:57*)

     [*java*]       at gsn.DataDistributer.flushStreamElement(*
DataDistributer.java:165*)

     [*java*]       at gsn.DataDistributer.run(*DataDistributer.java:220*)

     [*java*]       at java.lang.Thread.run(*Thread.java:662*)

     [*java*] DEBUG [2012-07-23 16:27:51,387] [Thread-19] (*
VirtualSensor.java:112*)     - Enforcing the limit size on the VS table by
: delete from sim_tassllfvs where sim_tassllfvs.timed <= ( SELECT * FROM (
SELECT timed FROM sim_tassllfvs group by sim_tassllfvs.timed ORDER BY
sim_tassllfvs.timed DESC LIMIT 1 offset 5000  ) AS TMP)

     [*java*] DEBUG [2012-07-23 16:27:51,387] [Thread-19] (*
StorageManager.java:778*)     - Asking a con. to DB:
jdbc:postgresql://tass-server/gsn_geo_dev_c => busy: 1, max-size: 8, idle: 2

     [*java*] DEBUG [2012-07-23 16:27:51,389] [Thread-19] (*
VirtualSensor.java:119*)     - 0 old rows dropped from sim_tassllfvs
     [*java*] DEBUG [2012-07-23 16:27:51,391] [Thread-19] (*
InputStream.java:292*)     - Input Stream's result has *1* stream elements


> > In particular the exception (I mentioned above) happens before calling
> the
> > method "SituationManager.createAccessControlEvent":
> >
>
> This isn't possible. The call must have completed, and we're already
> in insert().
>
> We are using drools Fusion and then we are inserting some events(
ACObservation )
through entry point. Is it possible that the error is related to this
insert operation?

Thank you and kindly regards!
Carolina
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