Exception in setVariableData

Question

What is wrong with this: setVariableData("output", "payload", "/result", new String(nodeValue)), where nodeValue is the value I get in the Jave Exec after some calculations. This is throwing up the following exception trace:
04/09/01 13:30:10 Exception thrown while getting node value faultName: {{http:/
/schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {null}
code: {null}
summary: {null}
detail: {null}
04/09/01 13:30:10 com.collaxa.cube.engine.types.BPELFault: faultName: {{http://s
chemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {null}
code: {null}
summary: {null}
detail: {null}
04/09/01 13:30:10 at com.collaxa.cube.engine.ext.BPELXExecLet.setVariableD
ata(BPELXExecLet.java:523)
04/09/01 13:30:10 at bpel._1_0.ExecLetBxExe2.execute(ExecLetBxExe2.java:10
4)
04/09/01 13:30:10 at com.collaxa.cube.engine.ext.wmp.BPELXExecWMP.__execut
eStatements(BPELXExecWMP.java:58)
04/09/01 13:30:10 at com.collaxa.cube.engine.ext.wmp.BPELActivityWMP.perfo
rm(BPELActivityWMP.java:154)
04/09/01 13:30:10 at com.collaxa.cube.engine.CubeEngine.performActivity(Cu
beEngine.java:3215)
04/09/01 13:30:10 at com.collaxa.cube.engine.CubeEngine.handleWorkItem(Cub
eEngine.java:1636)
04/09/01 13:30:10 at com.collaxa.cube.engine.dispatch.message.instance.Per
formMessageHandler.handleLocal(PerformMessageHandler.java:57)
04/09/01 13:30:10 at com.collaxa.cube.engine.dispatch.DispatchHelper.handl
eLocalMessage(DispatchHelper.java:81)
04/09/01 13:30:10 at com.collaxa.cube.engine.dispatch.DispatchHelper.sendM
emory(DispatchHelper.java:134)
04/09/01 13:30:10 at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEng
ine.java:5266)
04/09/01 13:30:10 at com.collaxa.cube.engine.CubeEngine.createAndInvoke(Cu
beEngine.java:1164)
04/09/01 13:30:10 at com.collaxa.cube.engine.bean.CubeEngineBean.createAnd
Invoke(CubeEngineBean.java:115)
04/09/01 13:30:10 at com.collaxa.cube.engine.bean.CubeEngineBean.syncCreat
eAndInvoke(CubeEngineBean.java:137)
04/09/01 13:30:10 at ICubeEngineBean_StatelessSessionBeanWrapper2.syncCrea
teAndInvoke(ICubeEngineBean_StatelessSessionBeanWrapper2.java:486)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.BaseDispatcherService
.initialRequestAnyType(BaseDispatcherService.java:753)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.BaseDispatcherService
.initialRequest(BaseDispatcherService.java:340)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.BaseDispatcherService
.request(BaseDispatcherService.java:241)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.DispatcherService.req
uest(DispatcherService.java:66)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.DeliveryService.reque
st(DeliveryService.java:80)
04/09/01 13:30:10 at com.oracle.bpel.client.dispatch.DeliveryService.reque
st(DeliveryService.java:58)
04/09/01 13:30:10 at ngDoInitiate.jspService(_ngDoInitiate.java:157)
04/09/01 13:30:10 at com.orionserver.http.OrionHttpJspPage.service(OrionHt
tpJspPage.java:56)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspPageTable.service(JspPageTabl
e.java:347)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspServlet.internalService(JspSe
rvlet.java:509)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspServlet.service(JspServlet.ja
va:413)
04/09/01 13:30:10 at javax.servlet.http.HttpServlet.service(HttpServlet.ja
va:853)
04/09/01 13:30:10 at com.evermind.server.http.ServletRequestDispatcher.inv
oke(ServletRequestDispatcher.java:765)
04/09/01 13:30:10 at com.evermind.server.http.ServletRequestDispatcher.inc
lude(ServletRequestDispatcher.java:121)
04/09/01 13:30:10 at com.evermind.server.http.EvermindPageContext.include(
EvermindPageContext.java:267)
04/09/01 13:30:10 at displayProcess.jspService(_displayProcess.java:261)
04/09/01 13:30:10 at com.orionserver.http.OrionHttpJspPage.service(OrionHt
tpJspPage.java:56)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspPageTable.service(JspPageTabl
e.java:347)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspServlet.internalService(JspSe
rvlet.java:509)
04/09/01 13:30:10 at oracle.jsp.runtimev2.JspServlet.service(JspServlet.ja
va:413)
04/09/01 13:30:10 at javax.servlet.http.HttpServlet.service(HttpServlet.ja
va:853)
04/09/01 13:30:10 at com.evermind.server.http.ServletRequestDispatcher.inv
oke(ServletRequestDispatcher.java:765)
04/09/01 13:30:10 at com.evermind.server.http.ServletRequestDispatcher.for
wardInternal(ServletRequestDispatcher.java:317)
04/09/01 13:30:10 at com.evermind.server.http.HttpRequestHandler.processRe
quest(HttpRequestHandler.java:790)
04/09/01 13:30:10 at com.evermind.server.http.HttpRequestHandler.run(HttpR
equestHandler.java:270)
04/09/01 13:30:10 at com.evermind.server.http.HttpRequestHandler.run(HttpR
equestHandler.java:112)
04/09/01 13:30:10 at com.evermind.util.ReleasableResourcePooledExecutor$My
Worker.run(ReleasableResourcePooledExecutor.java:192)
04/09/01 13:30:10 at java.lang.Thread.run(Thread.java:534)

Answer 1

I looked at your bpel, the problem is the "output" variable is not initialized. thats why when you apply the "/result" query in setVariableData() it returns zero node. I changed two things in your bpel.
1. initialized the output variable
<assign>
<copy>
<from> <TestResponse xmlns="http://www.yasutech.com"><result/></TestResponse> </from>
<to variable="output" part="payload"/>
</copy>
</assign>
2.Changed the query in <bpelx:exec> setVariableData()
setVariableData("output", "payload", "/tns:TestResponse/tns:result", new String(nodeValue));
From 2.0.10, we do strict xpath evaluation. All xpath queries should be qualified now. which means all your xpath steps should have prefix associated like "/pfx1:a/pfx1:b/pfx2:c".