Jaber C. Mourad [http://community.jboss.org/people/newbeewan] replied to the 
discussion

"Unable to load JBPM 4.3 in spring web application context"

To view the discussion, visit: http://community.jboss.org/message/543751#543751

--------------------------------------------------------------
Thanks for the info but it doesn't help.

I add a context.xml with :
<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" path="/my-jbpm-webapp">
  <Manager pathname=""/>
</Context>


And it doesn't change anything...

The only workaround (heavy !) is :
* undeploy from tomcat,
* restart tomcat,
* redeploy the application...
It's not really a good solution, but I can continue to work ahead, before 
finding for a better solution !

The thread you point is interesting, but I'm not using jbpm installation tools, 
i'm using maven to build.
My theory is jbpm stay loaded when trying to redeploy so the new classloader is 
in conflic with the previously loaded one...

There is a background task launching an hibernate session regularly as I see 
some SQL request launch every 2 au 3 seconds :
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKOWNER_ is null) and jobimpl0_.RETRIES_>0 and 
jobimpl0_.STATE_<>'suspended' order by jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKEXPTIME_ is null or jobimpl0_.LOCKEXPTIME_<=?) 
and (jobimpl0_.DUEDATE_ is null or jobimpl0_.DUEDATE_<=?) and 
jobimpl0_.RETRIES_>0 and jobimpl0_.STATE_<>'suspended' order by 
jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKOWNER_ is null) and jobimpl0_.RETRIES_>0 and 
jobimpl0_.STATE_<>'suspended' order by jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKEXPTIME_ is null or jobimpl0_.LOCKEXPTIME_<=?) 
and (jobimpl0_.DUEDATE_ is null or jobimpl0_.DUEDATE_<=?) and 
jobimpl0_.RETRIES_>0 and jobimpl0_.STATE_<>'suspended' order by 
jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKOWNER_ is null) and jobimpl0_.RETRIES_>0 and 
jobimpl0_.STATE_<>'suspended' order by jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKEXPTIME_ is null or jobimpl0_.LOCKEXPTIME_<=?) 
and (jobimpl0_.DUEDATE_ is null or jobimpl0_.DUEDATE_<=?) and 
jobimpl0_.RETRIES_>0 and jobimpl0_.STATE_<>'suspended' order by 
jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKOWNER_ is null) and jobimpl0_.RETRIES_>0 and 
jobimpl0_.STATE_<>'suspended' order by jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKEXPTIME_ is null or jobimpl0_.LOCKEXPTIME_<=?) 
and (jobimpl0_.DUEDATE_ is null or jobimpl0_.DUEDATE_<=?) and 
jobimpl0_.RETRIES_>0 and jobimpl0_.STATE_<>'suspended' order by 
jobimpl0_.DUEDATE_ asc limit ?
Hibernate: select jobimpl0_.DBID_ as DBID1_6_, jobimpl0_.DBVERSION_ as 
DBVERSION3_6_, jobimpl0_.DUEDATE_ as DUEDATE4_6_, jobimpl0_.STATE_ as 
STATE5_6_, jobimpl0_.ISEXCLUSIVE_ as ISEXCLUS6_6_, jobimpl0_.LOCKOWNER_ as 
LOCKOWNER7_6_, jobimpl0_.LOCKEXPTIME_ as LOCKEXPT8_6_, jobimpl0_.EXCEPTION_ as 
EXCEPTION9_6_, jobimpl0_.RETRIES_ as RETRIES10_6_, jobimpl0_.PROCESSINSTANCE_ 
as PROCESS11_6_, jobimpl0_.EXECUTION_ as EXECUTION12_6_, jobimpl0_.CFG_ as 
CFG13_6_, jobimpl0_.SIGNAL_ as SIGNAL14_6_, jobimpl0_.EVENT_ as EVENT15_6_, 
jobimpl0_.REPEAT_ as REPEAT16_6_, jobimpl0_.CLASS_ as CLASS2_6_ from JBPM4_JOB 
jobimpl0_ where (jobimpl0_.LOCKOWNER_ is null) and jobimpl0_.RETRIES_>0 and 
jobimpl0_.STATE_<>'suspended' order by jobimpl0_.DUEDATE_ asc limit ?


I suspect that thread to never been stopped so the old classloader is never 
dereferenced ...

Is there a possibility to end that thread (with an application listener for 
example) ?

Regards

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