throwing Exception java.io.IOException: Cannot run program "javac": CreateProcess error=2,

[frederickraj]

i am getting Exception while running the below line of code:

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 dori.jasper.engine.design.JRJavacCompiler.compileClass(JRJavacCompiler.java:102)
      at dori.jasper.engine.design.JRAbstractJavaCompiler.compileReport(JRAbstractJavaCompiler.java:151)
      at dori.jasper.engine.design.JRDefaultCompiler.compileReport(JRDefaultCompiler.java:136)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:196)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:148)
      at JasperReportsIntro.main(JasperReportsIntro.java:20)
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.<init>(Unknown Source)
      at java.lang.ProcessImpl.start(Unknown Source)
      ... 9 more

NESTED 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 dori.jasper.engine.design.JRJavacCompiler.compileClass(JRJavacCompiler.java:102)
      at dori.jasper.engine.design.JRAbstractJavaCompiler.compileReport(JRAbstractJavaCompiler.java:151)
      at dori.jasper.engine.design.JRDefaultCompiler.compileReport(JRDefaultCompiler.java:136)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:196)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:148)
      at JasperReportsIntro.main(JasperReportsIntro.java:20)
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.<init>(Unknown Source)
      at java.lang.ProcessImpl.start(Unknown Source)
      ... 9 more

NESTED BY :
dori.jasper.engine.JRException: Error compiling report java source file : C:\Documents and Settings\palans12\JasperCheck\Simple_Report.java
      at dori.jasper.engine.design.JRJavacCompiler.compileClass(JRJavacCompiler.java:127)
      at dori.jasper.engine.design.JRAbstractJavaCompiler.compileReport(JRAbstractJavaCompiler.java:151)
      at dori.jasper.engine.design.JRDefaultCompiler.compileReport(JRDefaultCompiler.java:136)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:196)
      at dori.jasper.engine.JasperCompileManager.compileReport(JasperCompileManager.java:148)
      at JasperReportsIntro.main(JasperReportsIntro.java:20)
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 dori.jasper.engine.design.JRJavacCompiler.compileClass(JRJavacCompiler.java:102)
      ... 5 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.<init>(Unknown Source)
      at java.lang.ProcessImpl.start(Unknown Source)
      ... 9 more

 

Code:

      jasperReport = JasperCompileManager.compileReport(          "reports/jasperreports_demo.jrxml");      jasperPrint = JasperFillManager.fillReport(          jasperReport, new HashMap(), new JREmptyDataSource());      JasperExportManager.exportReportToPdfFile(          jasperPrint, "reports/simple_report.pdf");