RFR(S): 8198655: test/lib/jdk/test/lib/apps/LingeredApp shouldn't inherit cout/cerr

[David Holmes]

Hi Chris,

On 10/03/2018 6:46 AM, Chris Plummer wrote:
> Hello,
> 
> Please help review the following:
> 
> https://bugs.openjdk.java.net/browse/JDK-8198655
> http://cr.openjdk.java.net/~cjplummer/8198655/webrev.00/webrev/
> 
> In the end there were two issues. The first was that the 
> pb.redirectError() call was redirecting the LingeredApp's stderr to the 
> console, which we don't want. The second was that nothing was capturing 
> the LingeredApp's output and sending it to the driver app's output (jtr 
> file). These changes make all the LingeredApp's output end up in the jtr 
> file.

It isn't clear to me how the interleaving of the two streams by the two 
threads is handled in the copy routine. Are we guaranteed to get 
complete lines of output from each stream before writing to System.out?

Thanks,
David
-----

> Tested by running all tests that use LingeredApp.
> 
> thanks,
> 
> Chris