By the way, shouldn't ReadGraphOut value look like below?

ReadGraphOut init value:
<?xml version="1.0" encoding="UTF-8"?>
<ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>
    <graphRdOut 
xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>READ_test123</graphRdOut>
</ReadGraphResponse>

or like this:

<?xml version="1.0" encoding="UTF-8"?>
<ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB";>
  <ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>
    <graphRdOut 
xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>READ_test123</graphRdOut>
  </ReadGraphResponse>
</ReadGraphResponse>

or like this:

<?xml version="1.0" encoding="UTF-8"?>
<ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB";>
  <ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>
    <graphRdOut>READ_test123</graphRdOut>
  </ReadGraphResponse>
</ReadGraphResponse>


Darek


-------- Wiadomos'c' oryginalna --------
Temat:  Re: Error: null parent exception in bpel assignLink...
Data:   Thu, 24 Jul 2008 14:43:42 +0200
Nadawca:        Dariusz Dziadek <[EMAIL PROTECTED]>
Adresat:        [email protected]
Odniesienia: <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>



Hi,

Below are the states of viariables at the moment when error occured (see attached servicemix.log):

DoAnalyzeIn value is correct:
<?xml version="1.0" encoding="UTF-8"?>
<message>
<payload>
<typens:AnalyzeGraph xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"; xmlns:typens="http://www.softwaremind.pl/WKI/WP4-test/TestScenario1/types";>
          <typens:graphIdIn>test123</typens:graphIdIn>
    </typens:AnalyzeGraph>
</payload>
</message>

ReadGraphIn value is correct:
<?xml version="1.0" encoding="UTF-8"?>
<message>
<payload>
  <ReadGraph xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>
    <graphIdRdIn>test123</graphIdRdIn>
  </ReadGraph>
</payload>
</message>

Invoking ReadGraph operation at endpoint:
<?xml version="1.0" encoding="UTF-8"?>
<service-ref>
  <jbi:end-point-reference jbi:end-point-name="KBPort"
jbi:service-name="sns:KBService" xmlns:sns="http://www.softwaremind.pl/WKI/WP4-test/KB"/>
</service-ref>
with parameter value:
<?xml version="1.0" encoding="UTF-8"?>
<ReadGraph>
  <graphIdRdIn>test123</graphIdRdIn>
</ReadGraph>
and the result message is correct:
<?xml version="1.0" encoding="UTF-8"?>
<ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB";>
<graphRdOut xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>READ_test123</graphRdOut>
</ReadGraphResponse>

ReadGraphOut init value is CORRECT(!!!):
<?xml version="1.0" encoding="UTF-8"?>
<ReadGraphResponse xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB";>
<graphRdOut xmlns="http://www.softwaremind.pl/WKI/WP4-test/KB/types";>READ_test123</graphRdOut>
</ReadGraphResponse>

AnalyzeGraphIn value is correct:
<?xml version="1.0" encoding="UTF-8"?>
<message>
  <payload>
<AnalyzeGraph xmlns="http://www.softwaremind.pl/WKI/WP4-test/GraphAnalyzer/types";>
      <graphIdIn>test123</graphIdIn>
<ns5:graphIn xmlns:ns5="http://www.softwaremind.pl/WKI/WP4-test/GraphAnalyzer/types"/>
    </AnalyzeGraph>
  </payload>
</message>

But ODE can't read ReadGraphOut variable by $ReadGraphOut.payload/ns3:graphRdOut selection :(
Any idea why?

Darek


Matthieu Riou pisze:
2008/7/23 Dariusz Dziadek <[EMAIL PROTECTED]>:

*Hi!

I'm using Apache ODE 1.2 with ServiceMix 3.2.1. I got an error during
accessing output variable (after invoking WS in BPEL process):*



That's fairly strange, it looks like a DOM level error where the node
structure is not correct. It's raised in the following assignment (when ODE
reads the content of the incoming message variable):

            <copy>
                <from>$ReadGraphOut.payload/ns3:graphRdOut</from>
                <to>$AnalyzeGraphIn.payload/ns5:graphIn</to>
            </copy>

Also is your process persistent or in memory?

Thanks,
Matthieu


15:43:26,567 | DEBUG | pool-4-thread-35 | BpelEventListener        |
mon.evt.DebugBpelEventListener   50 |
VariableReadEvent:
  Type = dataHandling
  VarName = ReadGraphOut
  ScopeId = 2401
  ScopeDeclarationId = 3
  ScopeName = __PROCESS_SCOPE:TestScenario1BPEL
  ParentScopesNames = [__PROCESS_SCOPE:TestScenario1BPEL]
  ProcessInstanceId = 2351
  ProcessId = {urn:/TestScenario1.bpel}TestScenario1BPEL-6
  ProcessName = {urn:/TestScenario1.bpel}TestScenario1BPEL
  Timestamp = Wed Jul 23 15:43:26 CEST 2008
  LineNo = 15
  Class = class org.apache.ode.bpel.evt.VariableReadEvent
15:43:26,567 | ERROR | pool-4-thread-35 | JacobVPU                 |
b.vpu.JacobVPU$JacobThreadImpl  463 | Method "run" in class
"org.apache.ode.bpel.runtime.ASSIGN" threw an unexpected exception.
java.lang.IllegalArgumentException: null parent
  at org.apache.ode.utils.DOMUtils.findChildByName(DOMUtils.java:745)
  at org.apache.ode.utils.DOMUtils.findChildByName(DOMUtils.java:740)
  at
org.apache.ode.bpel.runtime.ScopeFrame.getPartData(ScopeFrame.java:275)
  at
org.apache.ode.bpel.runtime.ScopeFrame.fetchVariableData(ScopeFrame.java:215)
  at
org.apache.ode.bpel.runtime.ExprEvaluationContextImpl.readVariable(ExprEvaluationContextImpl.java:92)
  at
org.apache.ode.bpel.elang.xpath10.runtime.JaxenContexts.getVariableValue(JaxenContexts.java:173)
  at org.jaxen.ContextSupport.getVariableValue(ContextSupport.java:217)
  at org.jaxen.Context.getVariableValue(Context.java:178)
  at
org.jaxen.expr.DefaultVariableReferenceExpr.evaluate(DefaultVariableReferenceExpr.java:107)
  at org.jaxen.expr.DefaultPathExpr.evaluate(DefaultPathExpr.java:139)
  at org.jaxen.expr.DefaultXPathExpr.asList(DefaultXPathExpr.java:102)
  at org.jaxen.BaseXPath.selectNodesForContext(BaseXPath.java:680)
  at org.jaxen.BaseXPath.selectNodes(BaseXPath.java:219)
  at
org.apache.ode.bpel.elang.xpath10.runtime.XPath10ExpressionRuntime.evaluate(XPath10ExpressionRuntime.java:103)
  at
org.apache.ode.bpel.runtime.ExpressionLanguageRuntimeRegistry.evaluate(ExpressionLanguageRuntimeRegistry.java:80)
  at org.apache.ode.bpel.runtime.ASSIGN.evalRValue(ASSIGN.java:196)
  at org.apache.ode.bpel.runtime.ASSIGN.copy(ASSIGN.java:348)
  at org.apache.ode.bpel.runtime.ASSIGN.run(ASSIGN.java:81)
  at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
  at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:451)
  at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
  at
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:835)
  at
org.apache.ode.bpel.engine.BpelProcess.handleWorkEvent(BpelProcess.java:402)
  at
org.apache.ode.bpel.engine.BpelEngineImpl.onScheduledJob(BpelEngineImpl.java:326)
  at
org.apache.ode.bpel.engine.BpelServerImpl.onScheduledJob(BpelServerImpl.java:373)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:337)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:336)
  at
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleScheduler.java:174)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:335)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:332)
  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
  at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  at java.lang.Thread.run(Thread.java:619)
15:43:26,567 | ERROR | pool-4-thread-35 | BpelEngineImpl           |
ode.bpel.engine.BpelEngineImpl  335 | Scheduled job failed;
jobDetail={mexid=hqejbhcnphr3gdiohpk3re, iid=2351, type=INVOKE_RESPONSE,
channel=20}
java.lang.RuntimeException: java.lang.IllegalArgumentException: null parent
  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:835)
  at
org.apache.ode.bpel.engine.BpelProcess.handleWorkEvent(BpelProcess.java:402)
  at
org.apache.ode.bpel.engine.BpelEngineImpl.onScheduledJob(BpelEngineImpl.java:326)
  at
org.apache.ode.bpel.engine.BpelServerImpl.onScheduledJob(BpelServerImpl.java:373)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:337)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler.java:336)
  at
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleScheduler.java:174)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:335)
  at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.java:332)
  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
  at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalArgumentException: null parent
  at org.apache.ode.utils.DOMUtils.findChildByName(DOMUtils.java:745)
  at org.apache.ode.utils.DOMUtils.findChildByName(DOMUtils.java:740)
  at
org.apache.ode.bpel.runtime.ScopeFrame.getPartData(ScopeFrame.java:275)
  at
org.apache.ode.bpel.runtime.ScopeFrame.fetchVariableData(ScopeFrame.java:215)
  at
org.apache.ode.bpel.runtime.ExprEvaluationContextImpl.readVariable(ExprEvaluationContextImpl.java:92)
  at
org.apache.ode.bpel.elang.xpath10.runtime.JaxenContexts.getVariableValue(JaxenContexts.java:173)
  at org.jaxen.ContextSupport.getVariableValue(ContextSupport.java:217)
  at org.jaxen.Context.getVariableValue(Context.java:178)
  at
org.jaxen.expr.DefaultVariableReferenceExpr.evaluate(DefaultVariableReferenceExpr.java:107)
  at org.jaxen.expr.DefaultPathExpr.evaluate(DefaultPathExpr.java:139)
  at org.jaxen.expr.DefaultXPathExpr.asList(DefaultXPathExpr.java:102)
  at org.jaxen.BaseXPath.selectNodesForContext(BaseXPath.java:680)
  at org.jaxen.BaseXPath.selectNodes(BaseXPath.java:219)
  at
org.apache.ode.bpel.elang.xpath10.runtime.XPath10ExpressionRuntime.evaluate(XPath10ExpressionRuntime.java:103)
  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:348)
  at org.apache.ode.bpel.runtime.ASSIGN.run(ASSIGN.java:81)
  at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
  at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:451)
  ... 15 more


*For more clues please refer to attachment that includes servicemix.log
file (DEBUG mode) and my test ServiceUnit (with WSDL and BPEL files).
(logs are starting when I'm sending SOAP message with test123 value by HTTP
BC component)

Have you got any ideas? Any help is appreciated.

Thanks and best regards,

Darek
*




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