Trying to use Java Stored Procedure to create directories

Question

Hello, I have the followqing simple Java code I am using to run OS commands from PL SQL. When I call my function, it does not create the directory, but it does say completed successfully. Here is the code and the call I am using:
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED Command
AS
import java.io.*;
import java.util.*;
public class Command{
public static void run(String cmdText)
throws IOException, InterruptedException
try {
int rtn;
Runtime rt = Runtime.getRuntime();
Process prcs = rt.exec(cmdText);
rtn = prcs.waitFor();
catch ( Throwable ex ) {
ex.printStackTrace();
CREATE OR REPLACE FUNCTION runoscommand(cmd IN VARCHAR2) RETURN NUMBER
AS LANGUAGE JAVA
NAME 'Command.run(java.lang.String) return int';
DECLARE
v_directory VARCHAR2(100):= 'C:\SYSTEM Interface\PL\files\';
v_rtn VARCHAR2(2000);
v_oscmd VARCHAR2(420);
BEGIN
            v_oscmd := 'mkdir "' || v_directory || '"';
            dbms_output.put_line(v_oscmd);
            SELECT runoscommand(v_oscmd) INTO v_rtn FROM DUAL;
            dbms_output.put_line(v_rtn);
END;
/Any ides on why this is not working? Any better suggestions for doing this? I need to be able to create directories from with in a PL SQL Stored Procedure. Thank you

Answer 1

Simple dude, you java code returns void, whereas your function returns an int. Change the java code to return an int (and return an int)