Jasper Reports Customization

I am getting the below information in error log file.


Tue Nov 17 12:10:52 IST 2009:ERROR:net.sf.jasperreports.engine.JRException: Error compiling report java source files : C:\Program Files\eviware\soapUI-Pro-3.0.1\bin\ReportTemplate_1258440051903_531932.java
  net.sf.jasperreports.engine.JRException: Error compiling report java source files : C:\Program Files\eviware\soapUI-Pro-3.0.1\bin\ReportTemplate_1258440051903_531932.java
  at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:93)
  at net.sf.jasperreports.engine.design.JRAbstractClassCompiler.compileUnits(JRAbstractClassCompiler.java:67)
  at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:192)
  at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:219)
  at com.eviware.soapui.reporting.engine.jasper.GenerateJasperReport.a(SourceFile:581)
  at com.eviware.soapui.reporting.engine.jasper.GenerateJasperReport.createReport(SourceFile:442)
  at com.eviware.soapui.reporting.engine.jasper.GenerateJasperReport$ReportFillWorker.construct(SourceFile:409)
  at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:46)
  at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:140)
  at java.lang.Thread.run(Unknown Source)
  Caused by: java.io.IOException: Cannot run program "javac": CreateProcess error=2, The system cannot find the file specified
  at java.lang.ProcessBuilder.start(Unknown Source)
  at java.lang.Runtime.exec(Unknown Source)
  at java.lang.Runtime.exec(Unknown Source)
  at net.sf.jasperreports.engine.design.JRJavacCompiler.compileClasses(JRJavacCompiler.java:62)
  ... 9 more
  Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
  at java.lang.ProcessImpl.create(Native Method)
  at java.lang.ProcessImpl.(Unknown Source)
  at java.lang.ProcessImpl.start(Unknown Source)
  ... 13 more

Regards,
Ravi