WIP: Refactor VMStructs

[zhengyu123]

What does this PR do?:

Motivation:

Additional Notes:

How to test the change?:

For Datadog employees:

• If this PR touches code that signs or publishes builds or packages, or handles
  credentials of any kind, I've requested a review from @DataDog/security-design-and-guidance.
• This PR doesn't touch any of that.
• JIRA: [JIRA-XXXX]

Unsure? Have a question? Request a review!

[dd-octo-sts]

CI Test Results

Run: #22232484306 | Commit: 4197e6e | Duration: 10m 59s (longest job)

❌ 14 of 40 test jobs failed

Status Overview

JDK	glibc-aarch64/debug	glibc-amd64/debug	musl-aarch64/debug	musl-amd64/debug
8	-	✅	-	-
8-ibm	-	✅	-	-
8-j9	✅	✅	-	-
8-librca	-	-	✅	✅
8-orcl	-	✅	-	-
8-zing	❌	❌	-	-
11	-	✅	-	-
11-j9	✅	✅	-	-
11-librca	-	-	✅	✅
11-zing	❌	❌	-	-
17	✅	✅	-	-
17-graal	✅	✅	-	-
17-j9	✅	✅	-	-
17-librca	-	-	✅	✅
17-zing	❌	❌	-	-
21	✅	✅	-	-
21-graal	✅	✅	-	-
21-librca	-	-	✅	✅
21-zing	❌	❌	-	-
25	❌	❌	-	-
25-graal	❌	❌	-	-
25-librca	-	-	❌	❌

Legend: ✅ passed | ❌ failed | ⚪ skipped | 🚫 cancelled

Failed Tests

musl-amd64/debug / 25-librca

Job: View logs

No detailed failure information available. Check the job logs.

musl-aarch64/debug / 25-librca

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 11-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 17-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 8-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 21-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 25-graal

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 17-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 8-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 25

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 21-zing

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 25-graal

Job: View logs

No detailed failure information available. Check the job logs.

glibc-aarch64/debug / 25

Job: View logs

No detailed failure information available. Check the job logs.

glibc-amd64/debug / 11-zing

Job: View logs

No detailed failure information available. Check the job logs.

Summary: Total: 40 | Passed: 26 | Failed: 14

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Updated: 2026-02-20 16:52:46 UTC