[jboss-user] [JBoss jBPM] - Deploying WebService in BPEL Project - selection of size oth

zono do-not-reply at jboss.com
Thu Jan 15 06:10:47 EST 2009


Sorry, because maybe it´s a stupid error. I´m a beginer, and I cannot understan all...

I've been trying to consume a WebService in BPEL 2.0 process with jbpm and the following exception occurs. Any idea what's the problem? 

11:47:03,840 WARN  [ProxyWarnLog] Narrowing proxy to class org.jbpm.bpel.graph.def.CompositeActivity - this operation breaks ==
11:47:03,872 ERROR [XPathEvaluator] selection of size other than one: []

I think is a bad assigment, but I´ve not idea. The webservice works good...

My BPEL file is the next:

<?xml version="1.0" encoding="UTF-8"?>
  | <bpws:process exitOnStandardFault="yes" name="HelloWorld"
  |     targetNamespace="http://jbpm.org/examples/hello"
  |     xmlns:bpws="http://docs.oasis-open.org/wsbpel/2.0/process/executable"
  |     xmlns:ns="http://jbpm.org/examples/helloArtifacts"
  |     xmlns:ns0="http://sundn/"
  |     xmlns:ns1="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://jbpm.org/examples/hello">
  |     <bpws:import importType="http://schemas.xmlsoap.org/wsdl/"
  |         location="hello.wsdl" namespace="http://jbpm.org/examples/hello"/>
  |     <bpws:import importType="http://www.w3.org/2001/XMLSchema"
  |         location="bundleentry://478/cache/www.w3.org/2001/XMLSchema.xsd" namespace="http://www.w3.org/2001/XMLSchema"/>
  |     <bpws:import importType="http://schemas.xmlsoap.org/wsdl/"
  |         location="http://127.0.0.1:8080/webService/webServiceServletName?wsdl" namespace="http://sundn/"/>
  |     <bpws:import importType="http://schemas.xmlsoap.org/wsdl/"
  |         location="helloArtifacts.wsdl" namespace="http://jbpm.org/examples/helloArtifacts"/>
  |     <bpws:partnerLinks>
  |         <bpws:partnerLink myRole="Greeter" name="caller" partnerLinkType="tns:Greeter-Caller">
  |             <bpws:documentation>establishes the relationship with the caller agent</bpws:documentation>
  |         </bpws:partnerLink>
  |         <bpws:partnerLink name="PartnerLink"
  |             partnerLinkType="ns:validationPLT" partnerRole="validationRolePLT"/>
  |     </bpws:partnerLinks>
  |     <bpws:variables>
  |         <bpws:variable messageType="tns:nameMessage" name="request">
  |             <bpws:documentation>holds the incoming message</bpws:documentation>
  |         </bpws:variable>
  |         <bpws:variable messageType="tns:greetingMessage" name="response">
  |             <bpws:documentation>holds the outgoing message</bpws:documentation>
  |         </bpws:variable>
  |         <bpws:variable
  |             messageType="ns0:webServiceName_validNameResponse" name="PartnerLinkResponse"/>
  |         <bpws:variable messageType="ns0:webServiceName_validName" name="PartnerLinkRequest"/>
  |     </bpws:variables>
  |     <bpws:sequence name="MainSeq">
  |         <bpws:receive createInstance="yes" name="ReceiveName"
  |             operation="sayHello" partnerLink="caller"
  |             portType="tns:Greeter" variable="request">
  |             <bpws:documentation>receive the name of a person</bpws:documentation>
  |         </bpws:receive>
  |         <bpws:assign name="Assign" validate="no">
  |             <bpws:copy>
  |                 <bpws:from part="name" variable="request">
  |                     <bpws:query queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"><![CDATA[/tns:name]]></bpws:query>
  |                 </bpws:from>
  |                 <bpws:to part="validName" variable="PartnerLinkRequest">
  |                     <bpws:query queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"><![CDATA[/ns0:webService/ns0:param]]></bpws:query>
  |                 </bpws:to>
  |             </bpws:copy>
  |         </bpws:assign>
  |         <bpws:invoke inputVariable="PartnerLinkRequest" name="Invoke"
  |             operation="validName" outputVariable="PartnerLinkResponse"
  |             partnerLink="PartnerLink" portType="ns0:webServiceName"/>
  |         <bpws:assign name="Assign1" validate="no">
  |             <bpws:copy>
  |                 <bpws:from part="validNameResponse" variable="PartnerLinkResponse">
  |                     <bpws:query queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"><![CDATA[/ns0:webService/ns0:return]]></bpws:query>
  |                 </bpws:from>
  |                 <bpws:to part="greeting" variable="response"/>
  |             </bpws:copy>
  |             <bpws:copy>
  |                 <bpws:from><![CDATA[concat('Hello, ', $request.name, '!')]]></bpws:from>
  |                 <bpws:to part="greeting" variable="response"/>
  |             </bpws:copy>
  |         </bpws:assign>
  |         <bpws:reply name="SendGreeting" operation="sayHello"
  |             partnerLink="caller" portType="tns:Greeter" variable="response">
  |             <bpws:documentation>send greeting back to caller</bpws:documentation>
  |         </bpws:reply>
  |     </bpws:sequence>
  | </bpws:process>

My Artifacts file:

<?xml version="1.0" encoding="UTF-8"?>
  | <definitions name="helloArtifacts" targetNamespace="http://jbpm.org/examples/helloArtifacts" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:plnk="http://docs.oasis-open.org/wsbpel/2.0/plnktype" xmlns:tns="http://jbpm.org/examples/helloArtifacts" xmlns:vprop="http://docs.oasis-open.org/wsbpel/2.0/varprop" xmlns:wsdl="http://jbpm.org/examples/hello" xmlns:wsdl1="http://sundn/">
  | <import location="http://127.0.0.1:8080/webService/webServiceServletName?wsdl" namespace="http://sundn/"/>
  |     
  |     <plnk:partnerLinkType name="validationPLT">
  | <plnk:role name="validationRolePLT" portType="wsdl1:webServiceName"/>
  | </plnk:partnerLinkType>
  |     <import location="http://127.0.0.1:8080/webService/webServiceServletName?wsdl" namespace="http://sundn/"/>
  | </definitions>
  | 

And my WSDL:

<?xml version="1.0" encoding="UTF-8"?>
  | <definitions targetNamespace="http://jbpm.org/examples/hello"
  |   xmlns:tns="http://jbpm.org/examples/hello" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  |   xmlns:plt="http://docs.oasis-open.org/wsbpel/2.0/plnktype"
  |   xmlns="http://schemas.xmlsoap.org/wsdl/">
  | 
  |   <message name="greetingMessage">
  |     <documentation>carries the greeting</documentation>
  |     <part name="greeting" type="xsd:string" />
  |   </message>
  | 
  |   <message name="nameMessage">
  |     <documentation>carries the name of a person</documentation>
  |     <part name="name" type="xsd:string" />
  |     <part name="pass" type="xsd:string"></part>
  |   </message>
  | 
  |   <portType name="Greeter">
  |     <documentation>describes the interface presented to callers</documentation>
  |     <operation name="sayHello">
  |       <input message="tns:nameMessage" />
  |       <output message="tns:greetingMessage" />
  |     </operation>
  |   </portType>
  | 
  |   <plt:partnerLinkType name="Greeter-Caller">
  |     <plt:documentation>
  |       characterizes the relationship between the greeter and its caller
  |     </plt:documentation>
  |     <plt:role name="Greeter" portType="tns:Greeter">
  |       <plt:documentation>
  |         Caller does not provide services to Greeter, hence the "Caller" role is omitted
  |       </plt:documentation>
  |     </plt:role>
  |   </plt:partnerLinkType>
  | 
  | </definitions>

I was finding in the log file, I I have not idea...

2009-01-15 11:27:00,331 DEBUG [org.hibernate.SQL] 
  |     /* load org.jbpm.instantiation.Delegation */ select
  |         delegation0_.ID_ as ID1_10_0_,
  |         delegation0_.CLASSNAME_ as CLASSNAME2_10_0_,
  |         delegation0_.CONFIGURATION_ as CONFIGUR3_10_0_,
  |         delegation0_.CONFIGTYPE_ as CONFIGTYPE4_10_0_,
  |         delegation0_.PROCESSDEFINITION_ as PROCESSD5_10_0_ 
  |     from
  |         JBPM_DELEGATION delegation0_ 
  |     where
  |         delegation0_.ID_=?
  |   | 
  |   | 
  | 
  | ...
  | 
  | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.loader.Loader] done entity load
  |   | 2009-01-15 11:27:00,331 DEBUG [org.jbpm.bpel.graph.scope.FaultActionHandler] handling fault exception: org.jbpm.bpel.graph.exe.ScopeInstance at 1bccddb[name=global,token=/,state=AP]
  |   | org.jbpm.bpel.graph.exe.BpelFaultException: org.jbpm.bpel.graph.exe.FaultInstance at 3bf56f[name={http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure]
  |   | 	at org.jbpm.bpel.sublang.xpath.XPathEvaluator.narrowToSingleNode(XPathEvaluator.java:258)
  |   | 	at org.jbpm.bpel.sublang.xpath.XPathVariableQueryEvaluator.evaluate(XPathVariableQueryEvaluator.java:63)
  |   | 	at org.jbpm.bpel.graph.basic.assign.FromVariable.extract(FromVariable.java:63)
  |   | 	at sun.reflect.GeneratedMethodAccessor254.invoke(Unknown Source)
  |   | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |   | 	at java.lang.reflect.Method.invoke(Method.java:585)
  |   | 	at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:173)
  |   | 	at org.jbpm.bpel.graph.basic.assign.From_$$_javassist_1.extract(From_$$_javassist_1.java)
  |   | 	at org.jbpm.bpel.graph.basic.assign.Copy.execute(Copy.java:36)
  |   | 	at org.jbpm.bpel.graph.basic.Assign.execute(Assign.java:45)
  |   | 	at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:123)
  |   | 	at org.jbpm.graph.def.Transition.take(Transition.java:151)
  |   | 	at org.jbpm.graph.def.Node.leave(Node.java:390)
  |   | 	at org.jbpm.bpel.graph.def.Activity.proceed(Activity.java:241)
  |   | 	at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:229)
  |   | 	at org.jbpm.bpel.graph.basic.Receive.messageReceived(Receive.java:53)
  |   | 	at sun.reflect.GeneratedMethodAccessor252.invoke(Unknown Source)
  |   | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |   | 	at java.lang.reflect.Method.invoke(Method.java:585)
  |   | 	at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:173)
  |   | 	at org.jbpm.bpel.graph.basic.Receive_$$_javassist_19.messageReceived(Receive_$$_javassist_19.java)
  |   | 	at org.jbpm.bpel.integration.def.ReceiveAction.deliverMessage(ReceiveAction.java:98)
  |   | 	at sun.reflect.GeneratedMethodAccessor249.invoke(Unknown Source)
  |   | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |   | 	at java.lang.reflect.Method.invoke(Method.java:585)
  |   | 	at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:173)
  |   | 	at org.jbpm.bpel.integration.def.ReceiveAction_$$_javassist_92.deliverMessage(ReceiveAction_$$_javassist_92.java)
  |   | 	at org.jbpm.bpel.integration.jms.StartListener.deliverRequest(StartListener.java:219)
  |   | 	at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:165)
  |   | 	at org.jboss.mq.SpyMessageConsumer.run(SpyMessageConsumer.java:697)
  |   | 	at java.lang.Thread.run(Thread.java:595)
  |   | 2009-01-15 11:27:00,331 DEBUG [org.jbpm.bpel.graph.exe.ScopeInstance] state change to FP on Scope(global) for Token(/)
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.cache.NonstrictReadWriteCache] Cache lookup: org.jbpm.bpel.graph.scope.Scope.faultHandlers#1861
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.cache.NonstrictReadWriteCache] Cache miss
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.loader.Loader] loading collection: [org.jbpm.bpel.graph.scope.Scope.faultHandlers#1861]
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.jdbc.ConnectionManager] opening JDBC connection
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.SQL] 
  |   |     /* load one-to-many org.jbpm.bpel.graph.scope.Scope.faultHandlers */ select
  |   |         faulthandl0_.SCOPE_ as SCOPE37_1_,
  |   |         faulthandl0_.ID_ as ID1_1_,
  |   |         faulthandl0_.NODECOLLECTIONINDEX_ as NODECOL35_1_,
  |   |         faulthandl0_.ID_ as ID1_5_0_,
  |   |         faulthandl0_.NAME_ as NAME3_5_0_,
  |   |         faulthandl0_.DESCRIPTION_ as DESCRIPT4_5_0_,
  |   |         faulthandl0_.PROCESSDEFINITION_ as PROCESSD5_5_0_,
  |   |         faulthandl0_.ISASYNC_ as ISASYNC6_5_0_,
  |   |         faulthandl0_.ISASYNCEXCL_ as ISASYNCE7_5_0_,
  |   |         faulthandl0_.ACTION_ as ACTION8_5_0_,
  |   |         faulthandl0_.SUPERSTATE_ as SUPERSTATE9_5_0_,
  |   |         faulthandl0_.SUPPRESSJOINFAILURE_ as SUPPRES18_5_0_,
  |   |         faulthandl0_.COMPOSITEACTIVITY_ as COMPOSI19_5_0_,
  |   |         faulthandl0_.JOINCONDITION_ as JOINCON20_5_0_,
  |   |         faulthandl0_.ACTIVITY_ as ACTIVITY33_5_0_,
  |   |         faulthandl0_.VARIABLE_ as VARIABLE24_5_0_,
  |   |         faulthandl0_.FAULTLOCALNAME_ as FAULTLO22_5_0_,
  |   |         faulthandl0_.FAULTNAMESPACE_ as FAULTNA23_5_0_ 
  |   |     from
  |   |         JBPM_NODE faulthandl0_ 
  |   |     where
  |   |         (
  |   |             faulthandl0_.CLASS_ = 'V'
  |   |         )  
  |   |         and faulthandl0_.SCOPE_=?
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to open ResultSet (open ResultSets: 0, globally: 0)
  |   | 2009-01-15 11:27:00,331 DEBUG [org.hibernate.loader.Loader] result set contains (possibly empty) collection: [org.jbpm.bpel.graph.scope.Scope.faultHandlers#1861]
  |   | 
  | 
  | I have modify the queries a lot of times... What must I do??
  | 
  | Thanks!

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