[ODE-231] org.xml.sax.SAXParseException: Premature end of file when invoking external service (TCP)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.1
• Fix Version/s: 1.2
• Component/s: BPEL Runtime
• Environment: Windows XP Pro, JDK 1.5.0.07, Oracle 10g XE, Apache Tomcat 5.5.25, OpenJPA
• Assignee: Matthieu Riou
• Reporter: Alexey Ousov
• Created: 17/Jan/08 07:38
• Updated: 17/Jan/08 16:40
• Resolved: 17/Jan/08 16:40

Description

When invoking external service via TCP using OpenJPA the following error is generated:

DEBUG - LoggingErrorHandler.fatalError(89) | :-1:-1:FATAL:Premature end of file.
ERROR - ODEService.onAxisMessageExchange(179) | Error processing response for MEX {MyRoleMex#hqejbhcnphr2wshoxjstwx [Client hqejbhcnphr2wshoxjstww] calling

{http://www.example.org/registerUser}

registerUser.registerUser(...)}
java.lang.RuntimeException: org.xml.sax.SAXParseException: Premature end of file.
at org.apache.ode.dao.jpa.MessageExchangeDAOImpl.getEPR(MessageExchangeDAOImpl.java:152)
at org.apache.ode.bpel.engine.MessageExchangeImpl.getEndpointReference(MessageExchangeImpl.java:199)
at org.apache.ode.axis2.ODEService.writeHeader(ODEService.java:271)
at org.apache.ode.axis2.ODEService.onResponse(ODEService.java:229)
at org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:172)
at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:69)
at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:50)
at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.xml.sax.SAXParseException: Premature end of file.
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at org.apache.ode.utils.DOMUtils.parse(DOMUtils.java:622)
at org.apache.ode.utils.DOMUtils.stringToDOM(DOMUtils.java:548)
at org.apache.ode.dao.jpa.MessageExchangeDAOImpl.getEPR(MessageExchangeDAOImpl.java:150)
... 26 more

Actually there are 3 places where this error is generated: org.apache.ode.dao.jpa.MessageExchangeDAOImpl.getEPR, PartnerLinkDAOImpl.getPartnerEPR and possibly (not tested) PartnerLinkDAOImpl.getMyEPR(). The cause is: variable which holds xml representation of EPR is not null, but empty string (""). It seems that OpenJPA in conjunction with Oracle uses empty string when restoring these values from database.