hg: jdk/sandbox: 8249586: Test runtime/cds/appcds/DirClasspathTest.java will fail if run twice

[chris.hegarty at oracle.com]

Changeset: 2f20eadd7031
Author:    ccheung
Date:      2020-08-04 19:17 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/2f20eadd7031

8249586: Test runtime/cds/appcds/DirClasspathTest.java will fail if run twice
Summary: Add the StandardCopyOption.REPLACE_EXISTING option when calling Files.copy().
Reviewed-by: iklam

! test/hotspot/jtreg/runtime/cds/appcds/DirClasspathTest.java