JDK 9 RFR of Update to RegEx test to use random number library

[Xueming Shen]

looks fine.

On 5/5/15 2:53 PM, Joseph D. Darcy wrote:
> Hello,
>
> The regression test
>
>     test/java/util/regex/RegExTest.java
>
> has been observed to intermittently fail. As the test uses randomness, 
> I'd like to update to the test to use the random number testing 
> library to better identify the cause of any future failures.
>
> Please review the patch below:
>
> diff -r 207c1b0356ea test/java/util/regex/RegExTest.java
> --- a/test/java/util/regex/RegExTest.java    Tue May 05 17:55:16 2015 
> +0100
> +++ b/test/java/util/regex/RegExTest.java    Tue May 05 14:50:10 2015 
> -0700
> @@ -23,7 +23,7 @@
>
>  /**
>   * @test
> - * @summary tests RegExp framework
> + * @summary tests RegExp framework (use -Dseed=X to set PRNG seed)
>   * @author Mike McCloskey
>   * @bug 4481568 4482696 4495089 4504687 4527731 4599621 4631553 4619345
>   * 4630911 4672616 4711773 4727935 4750573 4792284 4803197 4757029 
> 4808962
> @@ -33,6 +33,9 @@
>   * 6350801 6676425 6878475 6919132 6931676 6948903 6990617 7014645 
> 7039066
>   * 7067045 7014640 7189363 8007395 8013252 8013254 8012646 8023647 
> 6559590
>   * 8027645 8035076 8039124 8035975 8074678
> + * @library /lib/testlibrary
> + * @build jdk.testlibrary.*
> + * @run main RegExTest
>   * @key randomness
>   */
>
> @@ -50,7 +53,7 @@
>   */
>  public class RegExTest {
>
> -    private static Random generator = new Random();
> +    private static Random generator = RandomFactory.getRandom();
>      private static boolean failure = false;
>      private static int failCount = 0;
>      private static String firstFailure = null;
>
> Thanks,
>
> -Joe