question on scripts results

Hello,

from reading the documentation on "Shell Scripts and Process Management in 
SF" it was not clear to me if the following statements are equ1valent:

(1)

ScriptResults res2 = se.execute(...);
ComponentDescription res = res2.waitForResults(-1);
System.out.println("code "+res.resolve("code",200,true));

(2)

ScriptResults res2 = se.execute(...);
while(!res2.resultsReady()) {}
ComponentDescription res = res2.waitForResults(0);
System.out.println("code "+res.resolve("code",200,true));


First I thought this should be equivalent as "-1" means "wait forever" but 
in my case (I'm executing a "rpm -ivh ...") case (1) does not work, i.e. I 
get "code null" as output, but case (2) works, i.e. I get "code 0". I want 
the execution to hold until the rpm install really has finished and case 
(2) does this but not case (1). What's the difference between those two ?

Thanks,
Andreas



-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click