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From SĀŽebastien Mosser <mos...@polytech.unice.fr>
Subject XSL goes down after Tomcat restart ...
Date Fri, 11 Jan 2008 16:08:43 GMT
Hi.

Here is a weird problem I'm encountering :
mosser@asmodeus:~/TvShowsOrchestration$ tomcat.sh stop
... bla bla bla ...
16:56:06,224 INFO  [BpelServerImpl] BPEL Server Stopped.
16:56:06,225 INFO  [ODEServer] Shutdown completed.
... bla bla bla ...
mosser@asmodeus:~/TvShowsOrchestration$ tomcat.sh start
... bla bla bla ...
16:56:53,337 INFO  [ODEServer] Using DAO Connection Factory class 
org.apache.ode.dao.jpa.BPELDAOConnectionFactoryImpl.
16:56:54,328 INFO  [BpelServerImpl] BPEL Server Started.
16:56:56,819 INFO  [BpelServerImpl] Registered process 
{http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv}OnTvTonight-10.
16:56:56,871 INFO  [DeploymentPoller] Poller started.
16:56:56,871 INFO  [ODEServer] Process deployment polling started on 
path /opt/tomcat/webapps/ode/WEB-INF/processes.
16:56:56,876 INFO  [ODEServer] ODE Service Engine has been started.
... bla bla bla ...

As far as we are, there is no trouble. Nos, let's try to invoke the 
process (each process using xsl stylesheet has the same weird behaviour) 
(invoke.sh is basically a 'curl | xmllint --format -' script)

mosser@asmodeus:~/TvShowsOrchestration$ invoke.sh 
http://localhost:8080/ode/processes/TvShowsOrchestrations/process
ERROR - GeronimoLog.error(108) | Scheduled job failed; 
jobDetail={type=INVOKE_RESPONSE, inmem=true, mexid=4611686018427387905, 
channel=31, iid=0}
java.lang.RuntimeException: java.lang.NullPointerException
         at 
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:464)
         at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
         at 
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:913)
         at 
org.apache.ode.bpel.engine.BpelProcess.handleWorkEvent(BpelProcess.java:392)
         at 
org.apache.ode.bpel.engine.BpelEngineImpl.onScheduledJob(BpelEngineImpl.java:328)
         at 
org.apache.ode.bpel.engine.BpelServerImpl.onScheduledJob(BpelServerImpl.java:373)
         at 
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:341)
         at 
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:340)
         at 
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleScheduler.java:179)
         at 
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:339)
         at 
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:336)
         at 
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
         at java.util.concurrent.FutureTask.run(FutureTask.java:123)
         at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
         at java.lang.Thread.run(Thread.java:613)
Caused by: java.lang.NullPointerException
         at 
org.apache.ode.utils.xsl.XslTransformHandler.parseXSLSheet(XslTransformHandler.java:84)
         at 
org.apache.ode.utils.xsl.XslTransformHandler.cacheXSLSheet(XslTransformHandler.java:106)
         at 
org.apache.ode.bpel.elang.xpath10.runtime.JaxenContexts$DoXslTransformFunction.call(JaxenContexts.java:367)
         at 
org.jaxen.expr.DefaultFunctionCallExpr.evaluate(DefaultFunctionCallExpr.java:186)
         at 
org.jaxen.expr.DefaultXPathExpr.asList(DefaultXPathExpr.java:112)
         at org.jaxen.BaseXPath.selectNodesForContext(BaseXPath.java:688)
         at org.jaxen.BaseXPath.selectNodes(BaseXPath.java:227)
         at 
org.apache.ode.bpel.elang.xpath10.runtime.XPath10ExpressionRuntime.evaluate(XPath10ExpressionRuntime.java:98)
         at 
org.apache.ode.bpel.runtime.ExpressionLanguageRuntimeRegistry.evaluate(ExpressionLanguageRuntimeRegistry.java:80)
         at org.apache.ode.bpel.runtime.ASSIGN.evalRValue(ASSIGN.java:196)
         at org.apache.ode.bpel.runtime.ASSIGN.copy(ASSIGN.java:362)
         at org.apache.ode.bpel.runtime.ASSIGN.run(ASSIGN.java:79)
         at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:585)
         at 
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:451)
         ... 15 more

Ouch ... it seems that my XSL stylesheet does not work ... BUT ...
let's redeploy the process :

mosser@asmodeus:~/TvShowsOrchestration$ ant deploy
Buildfile: build.xml
compile:

deploy:
      [copy] Copying 1 file to 
/opt/tomcat/webapps/ode/WEB-INF/processes/TvShowsOrchestrations
      [copy] Copying 
/Users/mosser/workspaces/seduite/TvShowsOrchestration/OnTvTonight.cbp to 
/opt/tomcat/webapps/ode/WEB-INF/processes/TvShowsOrchestrations/OnTvTonight.cbp

reload:
    [delete] Deleting 
/opt/tomcat/webapps/ode/WEB-INF/processes/TvShowsOrchestrations.deployed

BUILD SUCCESSFUL
Total time: 2 seconds

Tomcat logs :
17:01:30,054 INFO  [BpelServerImpl] Unregistered process 
{http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv}OnTvTonight-10.
17:01:30,829 INFO  [BpelServerImpl] Registered process 
{http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv}OnTvTonight-11.
17:01:30,829 INFO  [DeploymentPoller] Deployment of artifact 
TvShowsOrchestrations successful: 
[{http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv}OnTvTonight-11]

And now, let's invoke again :
mosser@asmodeus:~/TvShowsOrchestration$ invoke.sh 
http://localhost:8080/ode/processes/TvShowsOrchestrations/process  % 
Total    % Received % Xferd  Average Speed   Time    Time     Time 
Current                                 Dload  Upload   Total   Spent 
  Left  Speed
100  3444    0  3444    0     0   4656      0 --:--:-- --:--:-- --:--:-- 
     0
<?xml version="1.0"?>
<axis2ns7:OnTvTonightResponse 
xmlns:axis2ns7="http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv" 
xmlns:tns="http://rainbow.i3s.unice.fr/mosser/jSeduite/orchestrations/tv">
   <tns:shows>
     <tns:show>
       <tns:channel>Star academy </tns:channel>
       <tns:startAt> 20:50</tns:startAt>
       <tns:showTitle/>
     </tns:show>
     <!-- others french tv shows goes here ... -->
   </tns:shows>
</axis2ns7:OnTvTonightResponse>

So : MY STYLESHEET works ! Let's restart tomcat :
mosser@asmodeus:~/TvShowsOrchestration$ tomcat.sh restart
mosser@asmodeus:~/TvShowsOrchestration$ invoke.sh 
http://localhost:8080/ode/processes/TvShowsOrchestrations/process

And ... null pointer exception again ...

Any ideas ? Processes are deployed with 'in-memory' set to 'true', but 
it does not change anything to change it to 'false'.

-- 
  Sebastian

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