NullPointerException when opening report on Windows.

Question

We have to develop report by use crystal report on window and run by Eclipse 3.2 and use java 6.0
By set font is 'Code 39' then when we run program form Eclipse.
It show java.lang.NullPointerException. I don't know that what does it occur from problem?

Answer 1

I don't know that what line which occur this exception. Then I copy all code to you. Please help me.
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<jsp:useBean id="viewBean"
     class="th.co.snp.factoryorder.view.form.PrintOutOrdSheetForm"
     scope="request" />
<%@page import="com.crystaldecisions.reports.sdk.ReportClientDocument"%>
<%@page import="com.crystaldecisions.sdk.occa.report.exportoptions.*"%>
<%@page import="com.crystaldecisions.report.web.viewer.*"%>
<%@page import="java.sql.*"%>
<%@page import="th.co.palsys.common.util.DBConn"%>
<%@page import="th.co.snp.common.util.Constant"%>
<%
      /* Applies to Versions:     XI
Date Created: February 2005
Description: This sample demonstrates how to pass a Java Resultset to a report as a datasource at runtime using the 
            (JRC) SDK.
Author: CW
     ReportClientDocument reportClientDocument = new ReportClientDocument();
     DBConn db = new DBConn();
     java.sql.Connection conn = null;
     Statement st = null;
     Statement st2 = null;
     Statement st3 = null;
     try {
          //SQL query that can be used can be obtained by first creating a report directly off the desired datasource, and then
          //in Crystal Reports, open the 'Database' > 'Show SQL Query' to see the SQL generated for the report. 
          String query1 = "My query1"; // I remove query becuase more line.
          String query2 = "My query2"; // I remove query becuase more line.
          String query3 = "My query3"; // I remove query becuase more line
          conn = db.getConnection();
          //Call simple utility function that obtains Java Result set that will be
          //pushed into the report. 
          st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
          ResultSet.CONCUR_READ_ONLY);
          ResultSet resultSet = st.executeQuery(query1);
          st2 = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
          ResultSet.CONCUR_READ_ONLY);
          ResultSet resultSet2 = st2.executeQuery(query2);
          st3 = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
          ResultSet.CONCUR_READ_ONLY);
          ResultSet resultSet3 = st3.executeQuery(query3);
          if (!resultSet.next()) {
               conn.close();
               response.sendRedirect("message.html");
          resultSet.beforeFirst();
          reportClientDocument.open("CR/ConditioningOrderSheet.rpt", 0);
          String tableName = reportClientDocument.getDatabaseController()
          .getDatabase().getTables().getTable(0).getName();
          String SubReport = reportClientDocument
          .getSubreportController().getSubreport("SubFATRep06")
          .getDatabaseController().getDatabase().getTables()
          .getTable(0).getName();
          String SubReport2 = reportClientDocument
          .getSubreportController().getSubreport("SubFATRep06_2")
          .getDatabaseController().getDatabase().getTables()
          .getTable(0).getName();
          //Push the Java Resultset into the report.  This will then become the datasource of the report when the report itself
          //is generated.
          //reportClientDocument.getDatabaseController().setDataSource(resultSet, tableName , "resultTbl");
          reportClientDocument.getDatabaseController().setDataSource(
          resultSet, tableName, tableName);
          reportClientDocument.getSubreportController().getSubreport(
          "SubFATRep06").getDatabaseController().setDataSource(
          resultSet2, SubReport, SubReport);
          reportClientDocument.getSubreportController().getSubreport(
          "SubFATRep06_2").getDatabaseController().setDataSource(
          resultSet3, SubReport2, SubReport2);
          //Cache the report source of the ReportClientDocument in session.
          session.setAttribute("reportSource", reportClientDocument
          .getReportSource());
          ExportOptions oExportOptions = new ExportOptions();
          oExportOptions.setExportFormatType(ReportExportFormat.PDF);
          ReportExportControl oReportExportControl = new ReportExportControl();
          oReportExportControl.setReportSource(reportClientDocument.getReportSource());
          //Pass the report source to the ReportExportControl and set the ExportOptions
          oReportExportControl.setExportOptions(oExportOptions);
          //ExportAsAtttachment(true) prompts for open or save; false opens the report
          //  in the speficied format after exporting.
          oReportExportControl.setExportAsAttachment(true);
          //Export the report
          oReportExportControl.processHttpRequest(request, response,getServletConfig().getServletContext(), null);
          oReportExportControl.dispose();
     } catch (Exception e) {
          out.println(e);
     } finally {
          try {
               if (conn != null) {
          conn.close();
          } catch (SQLException e1) {
%>
PS. If I don't set font 'code39' on field in crystal report . It can open report form this sourcecode.