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From: =?ISO-8859-1?Q?Sven_K=F6hler?= <remove-sven.koehler@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: exec problem is JDK 1.7.0_21
Date: Sun, 21 Apr 2013 08:26:31 +0300
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Am 21.04.2013 01:03, schrieb Daniel Pitts:
> The first element of the array is the process name, the *rest* of the
> elements are each exactly one parameter.
> 
> The documentation says some *programs* may tokenize the argument
> themselves. If you are passing to such a program, then you need to use
> exactly two element array.

The documentation speaks of "operating systems where programs are
expected to tokenize command line strings themselves". Windows is that
type of operating systems. For that type of operating system, the list
of strings shall contain exactly two elements.

Here's the quote again:

> a command, a list of strings which signifies the external program
> file to be invoked and its arguments, if any. Which string lists
> represent a valid operating system command is system-dependent. For
> example, it is common for each conceptual argument to be an element
> in this list, but there are operating systems where programs are
> expected to tokenize command line strings themselves - on such a
> system a Java implementation might require commands to contain
> exactly two elements
Source:
http://docs.oracle.com/javase/7/docs/api/java/lang/ProcessBuilder.html

And in fact, I can confirm that ProcessBuilder passes the second element
of the string list to the invoked external program - however only if the
argument starts and ends with a quote.

Regards,
  Sven