MalformedInputException while streaming results from Runtime process execution(cobol obj) via Java on AS400

Question

I am trying to invoke a simple Hello World Cobol program through java. The java code is in IFS file structure and the cobol object is parked in a library. I am facing multiple problems:

The error stream returned by process execution is not in readable format.
I am getting error stream result even if the termination of cobol code returns 0.
I cannot see the cobol output result in the inputstream of the process.(May be I can solve this if i understand the error stream )

The cobol code works when invoke independently. I have tried encoding UTF8,UTF16, Cp943 and default. When I use UTF8,UTF16 I get MalformedInputException, else a garbage value.

Java code:(compiled @ AS 400 itself -java 1.5)


    import java.io.*;

    public class CallCLPgm
    {
       public static void main(String[] args)
       {
          try
          {
          Process theProcess =  Runtime.getRuntime().exec("system CALL PROG6");
          //error stream
            BufferedReader inStream1 = new BufferedReader(new InputStreamReader
                     (theProcess.getErrorStream(),"UTF8"));
             System.out.println(inStream1.readLine());
            inStream1.close();
          //input stream   
             BufferedReader inStream = new BufferedReader(new InputStreamReader
                     (theProcess.getInputStream()));
             System.out.println(inStream.readLine());
             inStream.close();


             System.out.println("termination : "+theProcess.waitFor());

 //Cobol code
      PROCEDURE DIVISION.        
      PROGRAM-BEGIN.     
          DISPLAY "Hello World".   
          STOP RUN.

AkD AkD · Accepted Answer · 2012-07-27T18:02:34

I should have focused on IBM encoding format http://publib.boulder.ibm.com/html/as400/v4r5/ic2924/index.htm?info/java/rzaha/fileenc.htm

I used "Cp037" for USA instead of UTF8 and other format.

BufferedReader inStream1 = new BufferedReader(new InputStreamReader (theProcess.getErrorStream(),"Cp037"));

MalformedInputException while streaming results from Runtime process execution(cobol obj) via Java on AS400

2 Answers