Shell command not executing in Java [duplicate]

Normally when i do this:

printf 'select x from Y \ngo\n' | isql -Uxx -Pxxxxxx -Dxxxxx -w 65535 -s ','

on the command line it executes fine.

even with the below java code. it works fine

public class test
{
 public static void main(String[] args)
 {
   String DB="|isql -Uxx -Pxxxxxx -Dxxxxx -w 65535 -s ','";
   String qpfx="printf \'";
   String qsfx=" \ngo\n\'";
   if(args[0]!=null)
        try {
            String cmd=qpfx+args[0]+qsfx+DB;
            System.out.println("argument query is:"+args[0]);
            System.out.println("Command is:"+cmd);

            Process p = Runtime.getRuntime().exec(new String[]{"sh","-c",cmd});

            p.waitFor();
            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line=reader.readLine();

            while (line != null) {    
                System.out.println(line);
                line = reader.readLine();
            }

        }
        catch(IOException e1) {}
        catch(InterruptedException e2) {}

 }
}

I will run this above java code like below:

java test "select x from Y"

Probelm comes when i give the select query as "select * from Y" instead of column names. That is when i wanted to execute like below:

java test "select * from Y"

The above jav code hangs.Can any body tell me the reason why?

below is the output where its hanging:

> java test "select * from Y"
argument query is:select * from Y
Command is:printf 'select * from Y
go
'|isql -Uxx -Pxxxxx -Dxxxxxx -w 65535 -s ','

I also tried:

java test "select \* from Y"

But it does not execute.