Re: What's java equivalent of C's argv[ 0 ]?

From:

"Oliver Wong" <owong@castortech.com>

Newsgroups:

comp.lang.java.programmer

Date:

Fri, 28 Apr 2006 17:11:26 GMT

Message-ID:

<21s4g.197$zn1.61@edtnps90>

"Owen Jacobson" <angrybaldguy@google-email-service.example.com> wrote in
message
news:pan.2006.04.28.01.39.43.665280@google-email-service.example.com...

On Wed, 26 Apr 2006 20:36:04 +0000, Oliver Wong wrote:

"Eric Sosman" <Eric.Sosman@sun.com> wrote in message
news:1146076532.925477@news1nwk...

There might be a way to learn the name of the class the
JVM was told to load when it first started up, but even that
could turn out to be uninformative. If you learned that "the
program" was com.tools.java.debuggers.CoverageAnalyzer, the
information might not be of a lot of use ...

Right. You could generate a stack trace and then analyze it, going
down
the list, and keep track of the last package you saw that was "yours".

Provided you're still in the same thread main is executing in, anyways.

    Damn, you got me there.

    Maybe have some sort of synchronized Singleton which takes a Throwable
as part of its instantiation? All entry points to the program would "try" to
initialize the Singleton by generating a Throwable (and thus a stack trace)
and pass it on to the Singleton, who would ignore all such initializations
except for the first one, thus guaranteeing that it has the trace that
corresponds to the original entry point?

    Of course, by using a Singleton, this assumes no funny business with the
class loader...

    - Oliver