jpackage with a single java property

[Alexander Scherbatiy]

 From a user point of view the following provided java command line 
arguments are different:  a="b c" (string "b c" is assigned to a) and 
"a=b c" (b is assigned to a and c is an additional option).

But java command line arguments are indistinguishable in this case:
 >  java Main a="b c" "a=b c"
arg[0]='a=b c'
arg[1]='a=b c'

public class Main {
     public static void main(String[] args) {
         for (int i = 0; i < args.length; i++) {
             System.out.printf("arg[%d]='%s'%n", i, args[i]);
         }
     }
}

Thanks,
Alexander.


On 04.03.2020 16:45, Kevin Rushforth wrote:
> No, I doubt this is a bug. If the following worked:
> 
> --java-options -Dfoo="bar 2"
> 
> meaning if the entire string `-Dfoo=bar 2` was treated as a single 
> argument, then the following would fail:
> 
> --java-options "--ea -Dfoo=bar"
> 
> since it would also be treated as a single argument rather than two 
> separate args as intended.
> 
> -- Kevin
> 
> 
> On 3/4/2020 5:04 AM, Andy Herrick wrote:
>> A quick test shows me  that this form works fine:
>>
>>     --java-options "-Dfoo='bar 2'"
>>
>> where this form fails:
>>
>>    --java-options -Dfoo="bar 2"
>>
>> Initially I can see no reason both form shouldn't work, so this looks 
>> like a bug to me.
>>
>> /Andy
>>
>>
>> On 3/4/2020 5:20 AM, Alexander Scherbatiy wrote:
>>> Hello,
>>>
>>> CSR for JEP 343: Packaging Tool [1] has description for option value 
>>> which consists of a list of strings:
>>>
>>> "If an option value is otherwise a list of strings, they must 
>>> separated by space characters.  Since the shell would otherwise take 
>>> them as separate  arguments, the list must be quoted. "
>>>
>>> For example:
>>>
>>>   --java-options -server --java-options "--ea -Dfoo=bar"
>>>
>>>
>>> What about a single java property which value contains space 
>>> characters (-Dfoo="bar 2")? Should it be possible to pass it in the way:
>>>
>>> --java-options -Dfoo="bar 2"
>>>
>>> or the whole property should be quoted like:
>>>
>>> --java-options "-Dfoo='bar 2'"
>>>
>>>
>>> [1] https://bugs.openjdk.java.net/browse/JDK-8213087
>>>
>>> Thanks,
>>>
>>> Alexander.
>>>
>>>
>