Hi,

Note that there is some existing support for Random (and predetermined)
seeds in the Hotspot test library.
See hotspot/test/testlibrary/.../Utils.java

Soon(ish) to be coming to a testlibrary near you.

Roger


On 4/28/2015 3:57 AM, Chris Hegarty wrote:
On 28 Apr 2015, at 01:44, Brian Burkhalter <brian.burkhal...@oracle.com> wrote:

Hi Joe,

On Apr 27, 2015, at 5:32 PM, joe darcy <joe.da...@oracle.com> wrote:

The patch looks pretty good. A few questions / comments:

The test ParseHexFloatingPoint.java didn't get the "(use -Dseed=X to set PRNG 
seed)" addition; was that intentional?
No, it was an oversight. Thanks for catching it. I thought it had been there. 
Possibly something happened in moving the path to a different issue.

To save some space on the @summary line

   Numerical tests for hexadecimal inputs to parseDouble, parseFloat

could be replaced with

   Numerical tests for hexadecimal inputs to parse{Double, Float}
Will change.

Could the java/math/RandomSeed class you added for java.math be used for this 
changeset instead of another another class with a large subset of the 
functionality?

Perhaps the random number handling should be moved up to somewhere under 
jdk/test/lib? That would more easily let other type who want to handling random 
numbers in a uniform way use the library (at the cost of slightly more 
complicated jtreg tagging).
I think having support for this in the jdk/test/lib/testlibrary/jdk/testlibrary 
would be good. I was going to suggest that too when the first changeset was 
pushed.

-Chris.

I’ll investigate tomorrow whether perhaps this functionality can be moved to a 
higher level with removal of duplication of code. The java/math/RandomSeed 
class changeset was the first in which I used @library so I should look over 
the jtreg tag list again.

Thanks,

Brian

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