hg: jdk/sandbox: 8246648: issue with OperatingSystemImpl getFreeSwapSpaceSize in docker after 8242480

[chris.hegarty at oracle.com]

Changeset: 2def4c9b817b
Author:    mbaesken
Date:      2020-06-08 09:29 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/2def4c9b817b

8246648: issue with OperatingSystemImpl getFreeSwapSpaceSize in docker after 8242480
Reviewed-by: bobv, sgehwolf

! src/jdk.management/unix/classes/com/sun/management/internal/OperatingSystemImpl.java