RE: InputStream vs. getText

I am reading source code of URL. If I read it using InputStream not
everything goes to the output, on the other hand if I use
System.out.println(response.getText()); it's working fine and prints out
whole output of the source code. See below

 

 

InputStreamReader inR = new InputStreamReader( body ); 

BufferedReader buf = new BufferedReader( inR ); 

String line; 

 while ( ( line = buf.readLine() ) != null )

 

output stops at

 

'function submitForm(blahblah, ablahblah) {   '

 

How come?