git: openjdk/jdk15u-dev: 8261236: C2: ClhsdbJstackXcompStress test fails when StressGCM is enabled

[Yuri Nesterenko]

Changeset: 010d8674
Author:    Sergey Nazarkin <snazarki at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-09-01 10:39:26 +0000
URL:       https://git.openjdk.java.net/jdk15u-dev/commit/010d867400989e1744ff30bf9e4f219fbdd3456b

8261236: C2: ClhsdbJstackXcompStress test fails when StressGCM is enabled

Backport-of: 752b6df34c92c02ac0992566e3efa7bc22b96aa1

! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/compiler/ImmutableOopMapSet.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/compiler/OopMapStream.java
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java