Integrated: 8307478: Implementation of Prepare to Restrict The Dynamic Loading of Agents

[Alan Bateman]

On Wed, 10 May 2023 11:12:49 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> This is the implementation for JEP 451. There are two parts to this:
> 
> 1. A multi-line warning is printed when a JVM TI or Java agent is loaded into a running VM. For JVM TI, the message is printed to stderr from JvmtiAgent::load. For Java agents, it is printed to System.err (as that may be redirected) in the JPLIS (j.l.instrumentation) implementation. This part includes an update to the JVM TI spec and API docs to require the warning.
> 
> 2. If running with -Djdk.instrument.traceUsage or -Djdk.instrument.traceUsage=true, the calls to the Instrumentation API print a trace message and stack trace.
> 
> Testing: tier1-6

This pull request has now been integrated.

Changeset: 5bd2af26
Author:    Alan Bateman <alanb at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/5bd2af26e66a863edc670229444b3282ba639563
Stats:     1199 lines in 21 files changed: 941 ins; 99 del; 159 mod

8307478: Implementation of Prepare to Restrict The Dynamic Loading of Agents

Reviewed-by: sspitsyn, cjplummer

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PR: https://git.openjdk.org/jdk/pull/13899