diablo-jdk and jmap etc tools

[Greg Lewis]

On Mon, Apr 30, 2007 at 03:06:48AM +0100, Dominic Bishop wrote:
> I'm currently trying to analyse memory usage etc in some java applications
> running on FreeBSD and whilst googling came across mention of tools such as
> jmap, jstack and so on in the JDK distribution.
> I cannot however get any of these to work, I set my JAVA_HOME environment to
> the jdk dir but still get the following error with all of them (or
> equivalent error anyway):
> 
> %jmap
> Exception in thread "main" java.lang.NoClassDefFoundError:
> sun/jvm/hotspot/tools/Jmap
> 
> Have I forgotten to do something or is it just the case that these tools are
> non-functional on FreeBSD. I did briefly browse the JDK jars on the machine
> and couldn't actually find the class it is looking for, or the equivalent
> ones for other tools like jstack, jsadebug etc which fail with similar
> messages.
> 
> System is:
> FreeBSD 6.2-RELEASE-p3 i386
> diablo-jdk-1.5.0.07.01_3

Looks like the appropriate classes aren't being compiled in.  That might
be fixable by simply finding where they get compiled and enabling it, but
its more likely that there is a native piece associated with those tools
which hasn't been ported.  You'd need to dig into the code to find out for
sure.

-- 
Greg Lewis                          Email   : glewis at eyesbeyond.com
Eyes Beyond                         Web     : http://www.eyesbeyond.com
Information Technology              FreeBSD : glewis at FreeBSD.org