Hi All.
I'm getting the following error while calling a data service.
I have the data service successfully deployed in the server and datasources
are referenced correctly in the data service as well.
*TID: [0] [AS] [2016-08-21 11:57:00,299] ERROR
{org.wso2.carbon.dataservices.core.description.query.SQLQuery} -
{org.wso2.carbon.dataservices.core.description.query.SQLQuery}*
*java.lang.NullPointerException*
*TID: [0] [AS] [2016-08-21 11:57:00,300] ERROR
{org.wso2.carbon.dataservices.core.description.query.SQLQuery} - DS Fault
Message: Error in 'SQLQuery.processNormalQuery'*
*DS Code: DATABASE_ERROR*
*Nested Exception:-*
*java.lang.NullPointerException*
* {org.wso2.carbon.dataservices.core.description.query.SQLQuery}*
*DS Fault Message: Error in 'SQLQuery.processNormalQuery'*
*DS Code: DATABASE_ERROR*
*Nested Exception:-*
*java.lang.NullPointerException*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:863)*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2247)*
* at
org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:259)*
* at
org.wso2.carbon.dataservices.core.engine.CallQuery.executeElement(CallQuery.java:179)*
* at
org.wso2.carbon.dataservices.core.engine.CallQueryGroup.executeElement(CallQueryGroup.java:111)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElementGroup.executeElement(OutputElementGroup.java:106)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89)*
* at
org.wso2.carbon.dataservices.core.description.query.Query.writeResultEntry(Query.java:342)*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:857)*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2247)*
* at
org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:259)*
* at
org.wso2.carbon.dataservices.core.engine.CallQuery.executeElement(CallQuery.java:179)*
* at
org.wso2.carbon.dataservices.core.engine.CallQueryGroup.executeElement(CallQueryGroup.java:111)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElementGroup.executeElement(OutputElementGroup.java:106)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89)*
* at
org.wso2.carbon.dataservices.core.description.query.Query.writeResultEntry(Query.java:342)*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:857)*
* at
org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2247)*
* at
org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:259)*
* at
org.wso2.carbon.dataservices.core.engine.CallQuery.executeElement(CallQuery.java:179)*
* at
org.wso2.carbon.dataservices.core.engine.CallQueryGroup.executeElement(CallQueryGroup.java:111)*
* at
org.wso2.carbon.dataservices.core.engine.OutputElement.execute(OutputElement.java:89)*
* at
org.wso2.carbon.dataservices.core.description.resource.Resource.execute(Resource.java:66)*
* at
org.wso2.carbon.dataservices.core.engine.DataService.invoke(DataService.java:548)*
* at
org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:101)*
* at
org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:112)*
* at
org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:85)*
* at
org.apache.axiom.om.impl.llom.OMSourcedElementImpl.serializeAndConsume(OMSourcedElementImpl.java:800)*
* at
org.apache.axis2.transport.http.ApplicationXMLFormatter.writeTo(ApplicationXMLFormatter.java:143)*
* at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.sendUsingOutputStream(CommonsHTTPTransportSender.java:411)*
* at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:288)*
* at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)*
* at
org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:45)*
* at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)*
* at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)*
* at
org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:144)*
* at
org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:139)*
* at
org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.processURLRequest(AxisServlet.java:837)*
* at
org.wso2.carbon.core.transports.CarbonServlet.handleRestRequest(CarbonServlet.java:303)*
* at
org.wso2.carbon.core.transports.CarbonServlet.doGet(CarbonServlet.java:152)*
* at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)*
* at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)*
* at
org.eclipse.equinox.http.helper.FilterServletAdaptor$FilterChainImpl.doFilter(FilterServletAdaptor.java:56)*
* at
org.wso2.carbon.mashup.jsservices.custom.ui.CustomUIServletFilter.doFilter(CustomUIServletFilter.java:233)*
* at
org.eclipse.equinox.http.helper.FilterServletAdaptor.service(FilterServletAdaptor.java:37)*
* at
org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)*
* at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)*
* at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)*
* at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)*
* at
org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)*
* at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)*
* at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)*
* at
org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61)*
* at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)*
* at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)*
* at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)*
* at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)*
* at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)*
* at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)*
* at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)*
* at org.wso2.carbon.ui.valve.XSSValve.invoke(XSSValve.java:118)*
* at org.wso2.carbon.ui.valve.CSRFValve.invoke(CSRFValve.java:72)*
* at
org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:178)*
* at
org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve$1.invoke(CarbonTomcatValve.java:47)*
* at
org.wso2.carbon.webapp.mgt.TenantLazyLoaderValve.invoke(TenantLazyLoaderValve.java:56)*
* at
org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:47)*
* at
org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:141)*
* at
org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:156)*
* at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)*
* at
org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:52)*
* at
org.wso2.carbon.tomcat.ext.valves.CarbonTomcatSessionReplicationValve.invoke(CarbonTomcatSessionReplicationValve.java:39)*
* at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)*
* at
org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)*
* at
org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)*
* at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)*
* at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)*
* at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)*
* at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1653)*
* at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)*
* at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)*
* at java.lang.Thread.run(Thread.java:745)*
*Caused by: java.lang.NullPointerException*
Any idea on the root cause for such an issue?
Thanks.
Regards,
Dilhasha
--
Fathima Dilhasha
*Software Engineer*
Mobile : +94 (0) 771663314 <%2B94%20%280%29%20773655496>
<%2B94%20%280%29%20773%20451194>
[email protected] <[email protected]>
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