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Posted to java-user@axis.apache.org by Greg Logan <gr...@usask.ca> on 2009/06/17 17:33:56 UTC
Re: Axis2 1.5 + EclipseLink + Tomcat 6 = Exceptions, but only sometimes
There was a missing getter, but adding it in had no effect on the
exception. Any other suggestions?
I've created the JIRA report at
https://issues.apache.org/jira/browse/AXIS2-4389
Thanks,
G
Andreas Veithen wrote:
> This may be caused by a missing getter method for one of the
> properties in the class(es) returned by your service. Can you check
> this?
>
> Can you also open a JIRA report, please?
>
> Andreas
>
> On Wed, Jun 17, 2009 at 05:21, Greg Logan<gr...@usask.ca> wrote:
>> Hi all,
>>
>> I'm having this weird problem when I try and use certain Axis2 web
>> services, but not others. What I'm trying to do is make a call, and
>> have the service return data from the DB using JPA queries via
>> Eclipselink. Unfortunately Axis appears to be throwing
>> NullPointerExceptions for some of the calls and I have no idea why.
>>
>> I've attached the full exception text, but the top few lines are thus:
>>
>> [ERROR] java.lang.NullPointerException
>> org.apache.axiom.om.OMException: java.lang.NullPointerException
>> at
>> org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:260)
>> at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:335)
>>
>> which is generated in response to the function:
>>
>> public Act[] getAllScenes(Common common) throws Exception {
>>
>> //get the entity manager and begin a transaction
>> EntityManager em = emf.createEntityManager();
>>
>> //Find the appropriate video
>> Episode ep = em.find(Episode.class, common.getVideoid());
>>
>> ...
>>
>> //Get the list of acts in the video
>> List<Act> results = t.getScenes();
>> if (results == null) {
>> logger.debug("Error: No list of acts found");
>> return null;
>> }
>>
>> //Sort them into the appropriate order and return
>> Act[] ary = new Act[results.size()];
>> results.toArray(ary);
>> Arrays.sort(ary);
>> em.close();
>> return ary;
>> }
>>
>> I've tried playing the debug-statement game, and I found that the line
>> throwing the exception is sometime *after* the return statement -
>> everything else is valid, including the data being pulled from the DB.
>>
>> On the flip side, I have a very similar function in a different service
>> (but still the same Eclipse project, persistence unit, build script and
>> deployed WAR file) which works fine for no apparent reason.
>>
>> Is there something here that I'm doing wrong, or anything that stands
>> out? I've been blocked on this for a couple of days now and I would
>> really like to be able to make some progress again :)
>>
>> Thanks,
>> G
>>
>> [ERROR] java.lang.NullPointerException
>> org.apache.axiom.om.OMException: java.lang.NullPointerException
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:260)
>> at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:335)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.build(OMElementImpl.java:737)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.detach(OMElementImpl.java:706)
>> at org.apache.axiom.om.impl.llom.OMNodeImpl.setParent(OMNodeImpl.java:124)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:297)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:213)
>> at org.apache.axiom.soap.impl.llom.SOAPBodyImpl.addChild(SOAPBodyImpl.java:231)
>> at org.apache.axis2.rpc.receivers.RPCUtil.processResponseAsDocLitWrapped(RPCUtil.java:381)
>> at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:138)
>> at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
>> at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
>> at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
>> at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167)
>> at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:142)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.util.HttpServletRequestWrapperFilter.doFilter(HttpServletRequestWrapperFilter.java:50)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:177)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:132)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:177)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:132)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
>> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
>> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
>> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
>> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
>> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
>> at java.lang.Thread.run(Thread.java:619)
>> Caused by: java.lang.NullPointerException
>> at org.apache.axis2.databinding.utils.BeanUtil.getPropertyQnameList(BeanUtil.java:239)
>> at org.apache.axis2.databinding.utils.BeanUtil.getPullParser(BeanUtil.java:67)
>> at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.processProperties(ADBXMLStreamReaderImpl.java:998)
>> at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.next(ADBXMLStreamReaderImpl.java:835)
>> at org.apache.axis2.util.StreamWrapper.next(StreamWrapper.java:71)
>> at javax.xml.stream.util.StreamReaderDelegate.next(StreamReaderDelegate.java:60)
>> at org.apache.axiom.om.impl.builder.SafeXMLStreamReader.next(SafeXMLStreamReader.java:183)
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:597)
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:172)
>> ... 43 more
>> [ERROR] java.lang.NullPointerException
>> org.apache.axis2.AxisFault: java.lang.NullPointerException
>> at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
>> at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:161)
>> at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
>> at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
>> at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
>> at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167)
>> at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:142)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.util.HttpServletRequestWrapperFilter.doFilter(HttpServletRequestWrapperFilter.java:50)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:177)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:132)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:177)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:132)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
>> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
>> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
>> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
>> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
>> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
>> at java.lang.Thread.run(Thread.java:619)
>> Caused by: org.apache.axiom.om.OMException: java.lang.NullPointerException
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:260)
>> at org.apache.axiom.om.impl.llom.OMNodeImpl.build(OMNodeImpl.java:335)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.build(OMElementImpl.java:737)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.detach(OMElementImpl.java:706)
>> at org.apache.axiom.om.impl.llom.OMNodeImpl.setParent(OMNodeImpl.java:124)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:297)
>> at org.apache.axiom.om.impl.llom.OMElementImpl.addChild(OMElementImpl.java:213)
>> at org.apache.axiom.soap.impl.llom.SOAPBodyImpl.addChild(SOAPBodyImpl.java:231)
>> at org.apache.axis2.rpc.receivers.RPCUtil.processResponseAsDocLitWrapped(RPCUtil.java:381)
>> at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:138)
>> ... 34 more
>> Caused by: java.lang.NullPointerException
>> at org.apache.axis2.databinding.utils.BeanUtil.getPropertyQnameList(BeanUtil.java:239)
>> at org.apache.axis2.databinding.utils.BeanUtil.getPullParser(BeanUtil.java:67)
>> at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.processProperties(ADBXMLStreamReaderImpl.java:998)
>> at org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl.next(ADBXMLStreamReaderImpl.java:835)
>> at org.apache.axis2.util.StreamWrapper.next(StreamWrapper.java:71)
>> at javax.xml.stream.util.StreamReaderDelegate.next(StreamReaderDelegate.java:60)
>> at org.apache.axiom.om.impl.builder.SafeXMLStreamReader.next(SafeXMLStreamReader.java:183)
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:597)
>> at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:172)
>> ... 43 more
>>