Incorrect result size: expected 1, actual 0

org.springframework.dao.EmptyResultDataAccessException

/refId,317/refDownload.pml

org.springframework.dao.EmptyResultDataAccessException: Incorrect result size: expected 1, actual 0 at org.springframework.dao.support.DataAccessUtils.requiredSingleResult(DataAccessUtils.java:71) at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:697) at com.seqtek.ac.domain.reader.RefReader.read(RefReader.java:32) at com.seqtek.ac.pt.file.RefDownloadBean.doDownLoad(RefDownloadBean.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.seqtek.pml.parser.handlers.content.bean.ActionBean.invokeMethod(ActionBean.java:92) at com.seqtek.pml.parser.handlers.content.bean.ActionBean.doLoad(ActionBean.java:47) at com.seqtek.ac.pml.AcActionBean.doLoad(AcActionBean.java:119) at com.seqtek.pml.parser.handlers.action.tag.PMLTagHandler.postprocess(PMLTagHandler.java:148) at com.seqtek.pml.parser.Parser.parseDocument(Parser.java:657) at com.seqtek.pml.parser.Parser.parseDocument(Parser.java:706) at com.seqtek.pml.parser.Parser.parseXML(Parser.java:523) at com.seqtek.pml.parser.Parser.load(Parser.java:270) at com.seqtek.pml.parser.Parser.load(Parser.java:238) at com.seqtek.pml.module.SpringModularSiteServlet.postRequest(SpringModularSiteServlet.java:199) at com.seqtek.pml.module.SpringModularSiteServlet.doPost(SpringModularSiteServlet.java:118) at com.seqtek.pml.module.SpringModularSiteServlet.doGet(SpringModularSiteServlet.java:87) at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) at com.seqtek.pml.module.PmlSiteModuleFilter.doFilter(PmlSiteModuleFilter.java:197) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.redisson.tomcat.UpdateValve.invoke(UpdateValve.java:62) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:764) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)