Fix DDMS-JDWP race am: f51d182c3d am: eb9ae68543 am: 083ec3543e

Original change: https://android-review.googlesource.com/c/platform/art/+/1569323

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Icf97bb82bdf338e1f39e36398339f92efdefd129