Hi, I have created jasper report page.. when i am running Some times it shows the the following exception please give any idea how to avoid the exception exception java.lang.IllegalStateException: *getOutputStream() has already been called for this response* at org.apache.catalina.connector.Response.getWriter(Response.java:596) at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:186) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:124) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:117) at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:191) at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115) at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75) at org.apache.jsp.ReportForm8_005fWeek1_jsp._jspService(org.apache.jsp.ReportForm8_005fWeek1_jsp:126) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) Code:My JSP program<%importing necessary files %><%String driver = "org.postgresql.Driver";String url = "jdbc:postgresql://localhost:5432/RHMIS";String user = "postgres";String password = "RHMIS";Class.forName(driver);try{Connection con = DriverManager.getConnection( url, user, password );File reportFile = new File("C:/ashok/jrxmls/week1.jasper"); if (!reportFile.exists()) throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport,null,con);if(jasperPrint.getPages().isEmpty()) { System.out.println("there is no record"); }else { byte[] bytes =JasperRunManager.runReportToPdf(reportFile.getPath(),null,con); response.setContentType("application/pdf"); response.setContentLength(bytes.length); ServletOutputStream ouputStream=response.getOutputStream(); ouputStream.write(bytes, 0, bytes.length); ouputStream.flush(); ouputStream.close(); } }catch(Exception e){ e.printStackTrace();}%>