net.sf.jasperreports.engine.JRException: Error retrieving field value from bean :
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:116)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getFieldValue(JRAbstractBeanDataSource.java:93)
at net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.getFieldValue(JRBeanCollectionDataSource.java:104)
at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:791)
at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:755)
at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1019)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:126)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:758)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:685)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:89)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:601)
at cn.edu.hlju.oa.kygl.action.ILabRDSystemCodeAction.executeBusiniess(ILabRDSystemCodeAction.java:93)
at cn.edu.hlju.oa.kygl.action.GeneralAction.process(GeneralAction.java:109)
at cn.edu.hlju.oa.kygl.action.GeneralAction.doPost(GeneralAction.java:89)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at cn.edu.hlju.oa.kygl.util.IDChecker.doFilter(IDChecker.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
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:172)
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:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
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(Unknown Source)
Caused by: java.lang.NoSuchMethodException: Unknown property ''
at org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.java:1157)
at org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.java:754)
at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:783)
at net.sf.jasperreports.engine.data.JRAbstractBeanDataSource.getBeanProperty(JRAbstractBeanDataSource.java:104)
... 32 more