[Ds-java-dev] [jira] Resolved: (DS-262) Exception occur when opening the tracer

[sumedha rubasinghe (JIRA)]

     [ https://wso2.org/jira/browse/DS-262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sumedha rubasinghe resolved DS-262.
-----------------------------------

    Fix Version/s: 1.0-RC1
       Resolution: Fixed

> Exception occur when opening the tracer 
> ----------------------------------------
>
>                 Key: DS-262
>                 URL: https://wso2.org/jira/browse/DS-262
>             Project: WSO2 Data Services
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.0-beta9
>         Environment: Windows XP
> Firefox 3
> JDK 1.5
>            Reporter: Suminda Chamara Silva
>            Assignee: sumedha rubasinghe
>            Priority: Critical
>             Fix For: 1.0-RC1
>
>         Attachments: SQL_Distinct_My_At.dbs, untitled.JPG
>
>
> Steps to Recreate
> 1. load SQL_Distinct_My_At.dbs (File has known error)
> 2. Go try it (java.lang.NullPointerException coour )
> 3. Go to the tracer
> Console Error
> ERROR -  Exception occurred while trying to invoke service method getMessages {org.apache.axis2.engine.AxisEngine}
> org.apache.axis2.AxisFault: Exception occurred while trying to invoke service method getMessages
> 	at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:158)
> 	at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
> 	at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:100)
> 	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176)
> 	at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
> 	at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:133)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
> 	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
> 	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	at org.wso2.carbon.bridge.BridgeServlet.service(BridgeServlet.java:116)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	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:210)
> 	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:870)
> 	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:685)
> 	at java.lang.Thread.run(Thread.java:595)
> Caused by: java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:585)
> 	at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
> 	at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
> 	... 27 more
> Caused by: java.lang.NullPointerException
> 	at com.ctc.wstx.sw.BaseNsStreamWriter.doWriteAttr(BaseNsStreamWriter.java:468)
> 	at com.ctc.wstx.sw.SimpleNsStreamWriter.writeAttribute(SimpleNsStreamWriter.java:96)
> 	at org.apache.axiom.om.impl.MTOMXMLStreamWriter.writeAttribute(MTOMXMLStreamWriter.java:183)
> 	at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:438)
> 	at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeStartpart(OMSerializerUtil.java:197)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:901)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:889)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:905)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:889)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:905)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:889)
> 	at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:213)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:889)
> 	at org.apache.axiom.om.impl.llom.OMNodeImpl.serialize(OMNodeImpl.java:375)
> 	at org.apache.axiom.om.impl.llom.OMElementImpl.toString(OMElementImpl.java:1051)
> 	at org.wso2.carbon.tracer.TracerUtils.getPrettyString(TracerUtils.java:39)
> 	at org.wso2.carbon.tracer.module.MemoryBasedTracePersister.getMessages(MemoryBasedTracePersister.java:78)
> 	at org.wso2.carbon.tracer.service.TracerService.getMessage(TracerService.java:179)
> 	at org.wso2.carbon.tracer.service.TracerService.getMessages(TracerService.java:113)
> 	... 33 more

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