RFR: 8318026: jcmd should provide access to low-level JVM debug information

[Yi Yang]

On Wed, 31 Jan 2024 14:22:44 GMT, Kevin Walls <kevinw at openjdk.org> wrote:

> Introduce the jcmd "VM.debug" to implement access to a useful set of the established debug.cpp utilities, with "jcmd PID VM.debug subcommand ...".
> 
> Not recommended for live production use.  Calling these "debug" utilities, and not including them in the jcmd help output, is to remind us they are not general customer-facing tools.

Could it be extend to something like

jcmd VM.debug MyDebugCode.java

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PR Comment: https://git.openjdk.org/jdk/pull/17655#issuecomment-1926547862