Upgrading from Java 1.4 to Java 1.5

Question

Hi.
I upgraded my JSDK/JRE from 1.4 to 1.5. All modules in my application work well except for the reports. Below is the method that is being called by print, next to it is the error I am encountering. Please, anyone tell me what's wrong with my code? I am using JasperReport 3.0, Java 1.5 and Eclipse 3.0.
Regards,
CODE:
private void doPrint(){
          String SQLQuery = "";
          String reportpath1 = ".\\src\\report\\ReportJRE.xml";
          try {
               ConnectDB con = new ConnectDB();               
               //JasperDesign jasperDesign1 = JasperManager.loadXmlDesign( reportpath1 );
               JasperDesign jasperDesign1 = JRXmlLoader.load( reportpath1 );
               //JasperReport jasperReport1 = JasperManager.compileReport(jasperDesign1);
               JasperReport jasperReport1 = JasperCompileManager.compileReport(jasperDesign1);
               Map parameters1 = new HashMap();
               SQLQuery = "SELECT * FROM cdts_sys_usr_acc order by grp_id,usr_name";
               parameters1.put("SQLQuery", SQLQuery);
               JasperPrint jasperPrint1 = JasperFillManager.fillReport(jasperReport1, parameters1, con.connection);
               new ReportViewer(jasperPrint1, "User List");
          } catch (ClassNotFoundException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (SQLException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (JRException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
This is the error I am encountering:
net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
C:\eclipse\workspace\ReportJRE\ReportJRE_1214472907404_571745.java:18: cannot access java.lang.Object
bad class file: C:\Program Files\Java\jre1.5.0_15\lib\rt.jar(java/lang/Object.class)
class file has wrong version 49.0, should be 48.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
public class ReportJRE_1214472907404_571745 extends JREvaluator
^
1 error
     at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:193)
     at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:219)
     at src.SampleRPT.doPrint(SampleRPT.java:125)
     at src.SampleRPT.access$0(SampleRPT.java:116)
     at src.SampleRPT$1.actionPerformed(SampleRPT.java:88)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at javax.swing.plaf.basic.BasicInternalFrameUI$Handler.retargetMouseEvent(Unknown Source)
     at javax.swing.plaf.basic.BasicInternalFrameUI$Handler.forwardMouseEvent(Unknown Source)
     at javax.swing.plaf.basic.BasicInternalFrameUI$Handler.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)

Answer 1

[ JasperReports 3.0.0|http://www.jasperforge.org/index.php?option=com_joomlaboard&Itemid=&func=view&catid=9&id=42461#42461]
Looks like something is still using SDK 1.4 or eclipse is set to compile to 1.4 compliance.