iReport NullPointerException—JRPropertiesMap.getProperty

设计和编译报表用的iReport 版本是3.1.1的，
jsp進行報表輸出工作用的是jasperreports-1.3.3.jar；
导致出现以下异常，
修改为jasperreports-3.0.1.jar即可。
java.lang.NullPointerException
at net.sf.jasperreports.engine.JRPropertiesMap.getProperty(JRPropertiesMap.java:102)
at net.sf.jasperreports.engine.util.JRProperties.getProperty(JRProperties.java:511)
at net.sf.jasperreports.engine.util.JRProperties.getIntegerProperty(JRProperties.java:549)
at net.sf.jasperreports.engine.query.JRJdbcQueryExecuter.createStatement(JRJdbcQueryExecuter.java:164)
at net.sf.jasperreports.engine.query.JRJdbcQueryExecuter.createDatasource(JRJdbcQueryExecuter.java:123)
at net.sf.jasperreports.engine.fill.JRFillDataset.createQueryDatasource(JRFillDataset.java:684)
at net.sf.jasperreports.engine.fill.JRFillDataset.setDatasource(JRFillDataset.java:616)
at net.sf.jasperreports.engine.fill.JRFillDataset.setParameterValues(JRFillDataset.java:605)
at net.sf.jasperreports.engine.fill.JRBaseFiller.setParameters(JRBaseFiller.java:891)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:716)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:669)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:63)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:402)
at org.apache.jsp.report.test1_jsp._jspService(test1_jsp.java:131)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at ht.util.SysUserFilter.doFilter(SysUserFilter.java:37)
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:175)
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:263)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:595)