Using OSSubProcess to invoke Java

On Jun 20, 2016, at 12:32 PM, Mariano Martinez Peck <[hidden email]> wrote:

On Mon, Jun 20, 2016 at 1:10 PM, Peter Uhnák <[hidden email]> wrote:

#runAndWaitOnExitDo: takes a cull-ed three-arg block with the process, stdout, and stderr; that way you can process stdout and stderr independently.

Exactly. 

 

Try this

OSSUnixSubprocess new

  command: '/usr/bin/java';

arguments: #('-version');

redirectStderr;

runAndWaitOnExitDo: [ :process :out :err |

err inspect

].

Indeed. This is what I think should work. And yes, I don't think the 'JAVA_HOME'  is needed. At least for this command.

Alex, let us know if Peter code worked.

Cheers, 

 

Peter

On Mon, Jun 20, 2016 at 6:03 PM, Alexandre Bergel <[hidden email]> wrote:

Hi Mark,

This is what I thought. But it does not seem to work. I tried:

OSSUnixSubprocess new
  command: '/usr/bin/java';
  arguments: #('-version');
        redirectStderr;

  runAndWaitOnExitDo: [ :process :outString  |
      outString inspect
  ].

Or is it the redirectStderr that does not work properly?

Cheers,
Alexandre

> On Jun 20, 2016, at 11:42 AM, Mark Bestley <[hidden email]> wrote:
>
> java -version outputs to stderr not stdout (also I don't think you need JAVA_HOME /usr/bin/java will do what is needed)
>
>
>
> On 20/06/2016 15:58, Alexandre Bergel wrote:
>
>> On OS X, in a terminal, if I type: /usr/bin/java -version
>> I obtain:
>> java version "1.8.0_66"
>> Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
>> Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
>>
>> Using OSSubProcess, do-it-ing the following:
>>
>> OSSUnixSubprocess new
>>   command: '/usr/bin/java';
>>   arguments: #('-version');
>>      environmentAt: 'JAVA_HOME' put: '/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home';
>>      redirectStderr;
>>       redirectStdout;
>>   runAndWaitOnExitDo: [ :process :outString  |
>>       outString inspect
>>   ].
>>
>> inspect an empty string.
>> Any idea what’s going on?
>>
>
>
>
> --
> Mark
>
>

--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

-- 

Mariano
http://marianopeck.wordpress.com