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https://issues.apache.org/jira/browse/ODE-508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthick Sankarachary closed ODE-508.
-------------------------------------
> Handle Multiple Variable References In XPath
> --------------------------------------------
>
> Key: ODE-508
> URL: https://issues.apache.org/jira/browse/ODE-508
> Project: ODE
> Issue Type: Bug
> Components: BPEL Runtime
> Affects Versions: 1.3.1
> Environment: Ode trunk somewhat prior to revision 741158 deployed in
> tomcat 6.0.14 as a web app.
> Reporter: Douglas Scott Jackson
> Assignee: Karthick Sankarachary
> Priority: Critical
> Fix For: 1.3.1
>
> Attachments: test.zip
>
>
> In an if condition the access of a variable throws a null pointer exception
> as follows:
> <variable name="i-unsuccessful" type="xsd:boolean" />
> <variable name="m-unsuccessful" type="xsd:boolean" />
> ...
> <if name="If__m_and_i_successful">
> <condition>($m-unsuccessful or $i-unsuccessful) = false</condition>
> LineNo = 2530
> Class = class org.apache.ode.bpel.evt.ActivityEnabledEvent
> DEBUG - GeronimoLog.debug(66) |
> ActivityExecStartEvent:
> Type = activityLifecycle
> ActivityId = 197
> ActivityName = If__m_and_i_successful
> ActivityType = OSwitch
> ActivityDeclarationId = 1771
> ScopeId = 28269
> ScopeDeclarationId = 3
> ScopeName = __PROCESS_SCOPE:dtran
> ParentScopesNames = [__PROCESS_SCOPE:dtran]
> ProcessInstanceId = 28202
> ProcessId = {http://xxx/yyy}dtran-64
> ProcessName = {http://xxx/yyy}dtran
> Timestamp = Thu Feb 05 13:21:49 CST 2009
>
> LineNo = 2530
> Class = class org.apache.ode.bpel.evt.ActivityExecStartEvent
> DEBUG - GeronimoLog.debug(66) | Resolving variable m-unsuccessful
> DEBUG - GeronimoLog.debug(66) |
> VariableReadEvent:
> Type = dataHandling
> VarName = m-unsuccessful
> ScopeId = 28269
> ScopeDeclarationId = 3
> ScopeName = __PROCESS_SCOPE:dtran
> ParentScopesNames = [__PROCESS_SCOPE:dtran]
> ProcessInstanceId = 28202
> ProcessId = {http://xxx/yyy}dtran-64
> ProcessName = {http://xxx/yyy}dtran
> Timestamp = Thu Feb 05 13:21:49 CST 2009
> LineNo = 30
> Class = class org.apache.ode.bpel.evt.VariableReadEvent
> DEBUG - GeronimoLog.debug(66) | Resolving variable i-unsuccessful
> DEBUG - GeronimoLog.debug(70) | Could not evaluate expression because of
> java.lang.NullPointerException
> at
> org.apache.ode.bpel.rtrep.v2.ExprEvaluationContextImpl.readVariable(ExprEvaluationContextImpl.java:74)
> at
> org.apache.ode.bpel.rtrep.v2.xpath20.JaxpVariableResolver.resolveVariable(JaxpVariableResolver.java:97)
> at
> net.sf.saxon.xpath.JAXPVariable.evaluateVariable(JAXPVariable.java:110)
> at
> net.sf.saxon.expr.VariableReference.evaluateVariable(VariableReference.java:480)
> at
> net.sf.saxon.expr.VariableReference.iterate(VariableReference.java:433)
> at
> net.sf.saxon.expr.Expression.effectiveBooleanValue(Expression.java:421)
> at
> net.sf.saxon.expr.BooleanExpression.effectiveBooleanValue(BooleanExpression.java:185)
> at
> net.sf.saxon.expr.BooleanExpression.evaluateItem(BooleanExpression.java:172)
> at net.sf.saxon.expr.Expression.iterate(Expression.java:370)
> at
> net.sf.saxon.expr.GeneralComparison.effectiveBooleanValue(GeneralComparison.java:511)
> at
> net.sf.saxon.xpath.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:310)
> at
> org.apache.ode.bpel.rtrep.v2.xpath20.XPath20ExpressionRuntime.evaluate(XPath20ExpressionRuntime.java:236)
> at
> org.apache.ode.bpel.rtrep.v2.xpath20.XPath20ExpressionRuntime.evaluateAsBoolean(XPath20ExpressionRuntime.java:87)
> at
> org.apache.ode.bpel.rtrep.v2.ExpressionLanguageRuntimeRegistry.evaluateAsBoolean(ExpressionLanguageRuntimeRegistry.java:71)
> at org.apache.ode.bpel.rtrep.v2.SWITCH.run(SWITCH.java:50)
> at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> 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.rtrep.v2.RuntimeInstanceImpl.execute(RuntimeInstanceImpl.java:639)
> at
> org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:593)
> at
> org.apache.ode.bpel.engine.ODEProcess.executeContinueInstancePartnerRoleResponseReceived(ODEProcess.java:473)
> at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl$UnreliableInvoker$2.run(PartnerLinkPartnerRoleImpl.java:395)
> at org.apache.ode.bpel.engine.Contexts$1.call(Contexts.java:86)
> at org.apache.ode.bpel.engine.Contexts$1.call(Contexts.java:85)
> at
> org.apache.ode.bpel.engine.Contexts.execTransaction(Contexts.java:106)
> at org.apache.ode.bpel.engine.Contexts.execTransaction(Contexts.java:83)
> at
> org.apache.ode.bpel.engine.BpelServerImpl$TransactedRunnable.run(BpelServerImpl.java:981)
> at
> org.apache.ode.bpel.engine.BpelInstanceWorker$2.call(BpelInstanceWorker.java:143)
> at
> org.apache.ode.bpel.engine.BpelInstanceWorker$2.call(BpelInstanceWorker.java:142)
> at
> org.apache.ode.bpel.engine.BpelInstanceWorker.doInstanceWork(BpelInstanceWorker.java:174)
> at
> org.apache.ode.bpel.engine.BpelInstanceWorker.run(BpelInstanceWorker.java:141)
> at
> org.apache.ode.bpel.engine.ODEProcess$ProcessRunnable.run(ODEProcess.java:1158)
> at
> org.apache.ode.bpel.engine.BpelServerImpl$ServerRunnable.run(BpelServerImpl.java:923)
> at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
> at java.util.concurrent.FutureTask.run(Unknown Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> ERROR - GeronimoLog.error(108) |
> {http://docs.oasis-open.org/wsbpel/2.0/process/executable}subLanguageExecutionFault:
> null
> org.apache.ode.bpel.common.FaultException:
> {http://docs.oasis-open.org/wsbpel/2.0/process/executable}subLanguageExecutionFault:
> null
> ==============================================
> Immediately prior to that a debug statement worked fine:
> LineNo = 2523
> Class = class org.apache.ode.bpel.evt.ActivityExecStartEvent
> DEBUG - GeronimoLog.debug(66) | Assign.copy({OCopy {OXPath10Expression
> $debug-output}={OXPath10Expression
> dbg:debugString(concat(xsd:string($m-unsuccessful), ' & ',
> xsd:string($i-unsuccessful)), 'm-unsuccessful & i-unsuccessful')}})
> DEBUG - GeronimoLog.debug(66) | Evaluating FROM expression
> "{OXPath10Expression dbg:debugString(concat(xsd:string($m-unsuccessful), ' &
> ', xsd:string($i-unsuccessful)), 'm-unsuccessful & i-unsuccessful')}".
> DEBUG - GeronimoLog.debug(66) | Resolving variable m-unsuccessful
> DEBUG - GeronimoLog.debug(66) |
> VariableReadEvent:
> Type = dataHandling
> VarName = m-unsuccessful
> ScopeId = 28269
> ScopeDeclarationId = 3
> ScopeName = __PROCESS_SCOPE:dtran
> ParentScopesNames = [__PROCESS_SCOPE:dtran]
> ProcessInstanceId = 28202
> ProcessId = {http://xxx/yyy}dtran-64
> ProcessName = {http://xxx/yyy}dtran
> Timestamp = Thu Feb 05 13:21:49 CST 2009
> LineNo = 30
>
> Class = class org.apache.ode.bpel.evt.VariableReadEvent
> DEBUG - GeronimoLog.debug(66) | Resolving variable i-unsuccessful
> DEBUG - GeronimoLog.debug(66) |
> VariableReadEvent:
> Type = dataHandling
> VarName = i-unsuccessful
> ScopeId = 28269
> ScopeDeclarationId = 3
> ScopeName = __PROCESS_SCOPE:dtran
> ParentScopesNames = [__PROCESS_SCOPE:dtran]
> ProcessInstanceId = 28202
> ProcessId = {http://xxx/yyy}dtran-64
> ProcessName = {http://xxx/yyy}dtran
> Timestamp = Thu Feb 05 13:21:49 CST 2009
> LineNo = 30
> Class = class org.apache.ode.bpel.evt.VariableReadEvent
> m-unsuccessful & i-unsuccessful -> false & false
> DEBUG - GeronimoLog.debug(66) | Expression {OXPath10Expression
> dbg:debugString(concat(xsd:string($m-unsuccessful), ' & ',
> xsd:string($i-unsuccessful)), 'm-unsuccessful & i-unsuccessful')} generated
> result false & false - type=java.lang.String
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