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Message-ID: <3FFF2951.3040308@nationwide.com>
Date: Fri, 09 Jan 2004 17:21:05 -0500
From: Moy Easwaran <easwarm AT nationwide DOT com>
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To: cygwin AT cygwin DOT com
CC: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Subject: Re: Problem with JVM 1.4.2 on Cygwin 1.5.5-1 on XP and 2000
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Igor Pechtchanski wrote:
 > Technically, since you're using -mno-cygwin, this is not a Cygwin
 > problem.

Thanks for the quick reply, Igor.  You're right: it doesn't seem like
a cygwin problem at all; more like a problem talking to Sun's jvm.dll
(which was presumably built with MSVC), but (a) I'm using the Cygwin
toolkit to built it, and (b) I figured I'd get better advice on the
Cygwin lists because of the expertise talking to Microsoft- and
related objects "from outside."

 > Where is this jvm.dll coming from?

 From Sun's Java SDK (http://java.sun.com/j2se/1.4.1/download.html).
$ which jvm.dll java.dll
/cygdrive/c/j2sdk1.4.1_06/jre/bin/client/jvm.dll
/cygdrive/c/j2sdk1.4.1_06/jre/bin/java.dll

 > > EXPORTS
 > > JNI_CreateJavaVM AT 12
 >
 > Are you sure you got the right argument patterns here (i.e., numbers 
after
 > the '@' sign)?  That may be one source of the problem.

I just copied it straight from inonit.com (and it worked on NT 4.0 and
XP Home).  And JNI_CreateJavaVM takes three pointers as arguments
(which is what the patterns denote, right?), so 12 bytes seems right.

 > >         options[0].optionString = "-Djava.class.path=c:\\test";
 >
 > Shouldn't this also contain a pointer to the default class libraries?

Shouldn't it know where the defaults are?  And if they're necessary
then it shouldn't work on NT or XP-Home either.

Moy




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