Hi Chris,

It is important to be clear about how whitespace is treated and within the java.security file
there are other uses that explicitly define how whitespace is used.

I am more concerned about how command line properties are understood and used how we have to document them. Allowing whitespace quickly gets bogged down in how shells handle quotes, telling people they have to
quote them and when/whether you have to quote the quotes.

Having a consistent treatment of command line and security properties keeps the
story simple and easier to support.

The jdk.serialFilter property had the same issue and is explicit in the java.security file
that spaces are just another character and are not treated specially.

Its a slippery slope, if we start compensating/ignoring whitespace in some properties
then we will have to keep explaining how some are treated differently.
I would keep the original non-whitespace description.
Case-insensistive compares are another slippery slope but make a bit more sense for usability.

$.02, Roger



On 7/20/18 10:18 AM, Chris Hegarty wrote:
Roger,

On 20 Jul 2018, at 14:52, Roger Riggs <roger.ri...@oracle.com> wrote:

Hi Chris,

It is very unusual for the processing of system properties to do *any* parsing 
except for delimiters
including removing spaces, etc.  It complicates the handling and sets a bad 
precedent
that makes it more complex for users and developers to know how to set property 
values.
The whitespace trimming should be removed.
The addition of the whitespace trimming was to clarify the intent of
the existing wording regarding whitespace. It was not intended to
set a precedent, good or bad.

Regardless of any subjective opinion, whitespace are allowable
within system property values, so it’s a matter of whether or not
we want to deal with them explicitly or just leave it as an
implementation detail.

I’m ok to drop the trimming if you feel strongly about it. But just
to note that this now diverges even more from the original.

-Chris.

$.02, Roger

   http://cr.openjdk.java.net/~chegar/8207846/webrev.00/

-Chris.

P.S. It appears that jtreg does not support quoted system property values
with spaces on the @run line. I’ll file an issue against jtreg for this.


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