net.sf.dynamicreports.report.exception.DRException: net.sf.jasperreports.engine.JRException: Error retrieving field value from bean

The stack trace of the exception has the following lines.

net.sf.dynamicreports.report.exception.DRException: net.sf.jasperreports.engine.JRException: Error retrieving field value from bean

Caused by: java.lang.NoSuchMethodException: Property '<bean property>' has no getter method in class

The following code throws such an exception.

public class DynamicReportsTest {
         public DynamicReportsTest() {
                  build();
         }

         private void build() {
                   JasperReportBuilder report = DynamicReports.report();
                   report.columns(col.column("Name", "name", DataTypes.stringType()),
                            col.column("Price", "price", DataTypes.doubleType()));

                    report.dataDataSource(createDataSource());
                    report.show();
         }

         private JRBeanCollectionDataSource createDataSource() {
                   List<ReportData> dataSource = new ArrayList<ReportData>();
                   ReportData data = new ReportData();

                   data.setName("Apple");
                   data.setPrice(1.89d);

                   dataSource.add(data);
                   data = new ReportData();    
                  data.setName("Papaya");
                   data.setPrice(2.35d);

                   dataSource.add(data)

                   return new JRBeanCollectionDataSource(dataSource);
          }
     
         private class ReportData {
                   private String name;
                   private double price;

                   public String getName() {
                             return name;
                   }
                   public void setName(String n) {
                            name = n;
                   }
                   public double getPrice() {
                             return price;
                   }
                   public void setPrice(double p) {
                            price = p;
                   }
         }

          public static void main(String[] args) {
                     new DynamicReportsTest();
          }
}

When the program is laying out the report, the data source is accessed by other code to retrieve the data. Since the ReportData class is private, its methods is invisible to other code.

To fix the exception simply change the ReportData inner class to public.

           public class ReportData{
                      . . . . . .
           }
       
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