Problem with Java System.exit on OpenJDK 7

[Ronald Klop]

On Mon, 11 Feb 2013 23:15:23 +0100, David P. Caldwell  
<david at code.davidpcaldwell.com> wrote:

> So I'm having a problem with the performance of a Java subprocess running
> under Java, running on 9.0-RELEASE i386.
>
[snip]
>
> Does anyone have any idea or suggestions about where I should be looking  
> at
> this point? Obviously it's hard to instrument the program further on
> FreeBSD -- I assume the NetBeans Profiler / jvisualvm stuff does not work
> on FreeBSD; that's the last I heard.

Since a short time there is this.
/usr/ports/java/visualvm/