InvocationTargetException for ClassLoaders.callStaticFunction Java Eclipse -

i have created program convert text xml using reversexsl api.

this program executed application calling static method (static int transformxsl).

i able execute , produce output running eclipse. however, when ran program (jar) using application stuck somewhere , couldnt find anything.

then, debugged "debug as...-> remote java application" in eclipse application , found "invocationtargetexception" @ classloaders.callstaticfunction.

below static method called application.

public class mytest4 {

public mytest4() {  }  public static int transformxsl(string deffile, string inputfile, string xslfile, string outputfile) {        system.out.println("dheeraj's method called");      // start time        filewriter fw=null;     try {         fw = new filewriter("d://countime.txt");     } catch (ioexception e1) {         // todo auto-generated catch block         e1.printstacktrace();     }         bufferedwriter output=new bufferedwriter(fw);         dateformat sd=new simpledateformat("yyyy-mm-dd hh:mm:ss.sss");         date dt= new date();         system.out.println("date calculated");          try {             output.write("start time:"+sd.format(dt).tostring());         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }           system.out.println(sd.format(dt));      filereader mydefreader=null, myxslreader=null;     transformerfactory tf = transformerfactory.newinstance();     transformer t=null;     fileinputstream instream = null;     bytearrayoutputstream outstream = null;      // step 1:      //instantiate transformer specified def , xslt      if (new file(deffile).canread())     {         try {             mydefreader = new filereader(deffile);             system.out.println("definition file read");         } catch (filenotfoundexception e) {              e.printstacktrace();         }     }     else mydefreader = null;      if (new file(xslfile).canread())         try {             myxslreader = new filereader(xslfile);             system.out.println("xsl file read");         } catch (filenotfoundexception e) {              e.printstacktrace();         }     else myxslreader = null;      try {          t = tf.newtransformer(mydefreader, myxslreader);     } catch (ioexception e) {          e.printstacktrace();     }      system.out.println("step 1: def , xslt transformation completed");      // step 2:     // read input data      try {         instream = new fileinputstream(inputfile);     } catch (filenotfoundexception e) {         e.printstacktrace();     }      outstream = new bytearrayoutputstream();      system.out.println("step 2: reading input file:  completed");      // step 3:      // transform input                  try {                     try (bufferedreader br = new bufferedreader(new filereader("d://2.txt"))) {                            string line = null;                            while ((line = br.readline()) != null) {                                system.out.println("content: "+line);                            }                         }                      system.out.println("file: "+inputfile.tostring());                     system.out.println("\n content: \n"+ instream.tostring());                     system.out.println("calling transform function");                     t.transform(instream, outstream);                     system.out.println("transformation called");                     outstream.close();                     try(outputstream outputstream = new fileoutputstream(outputfile)) {                         outstream.writeto(outputstream);                         system.out.println("outstream generated; output file creating");                     }                     system.out.println(outstream.tostring());                 } catch (transformerexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (parserexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (ioexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (parserconfigurationexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (factoryconfigurationerror e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (transformerfactoryconfigurationerror e) {                     // todo auto-generated catch block                     e.printstacktrace();                 } catch (javax.xml.transform.transformerexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 }                      system.out.println("output file created");     // end time                  date dt2= new date();                 system.out.println(sd.format(dt2));                      system.out.println("end time:"+dt2.tostring());                 try {                     output.append("end time:"+sd.format(dt2).tostring());                     output.close();                 } catch (ioexception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 }             return 0;       }  

}