Date: Wed, 12 Jul 2000 15:45:14 +0930 (CST)
From: Greg Lewis <glewis@trc.adelaide.edu.au>
To: David Holland <dholland@xmission.com>
Cc: freebsd-java@FreeBSD.ORG
Subject: Re: Question on JDK1.2.2 FAQ #5 {JBuilder and JPDA}
Message-ID: <200007120615.PAA27716@ares.trc.adelaide.edu.au>
In-Reply-To: <396C0AC1.F0FD39CA@xmission.com> from David Holland at "Jul 12, 2000 00:05:53 am"
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David Holland wrote:
> In trying to get JPDA to work with JBuilder using the
> native JDK1.2.2 (P9), I copied the jpda.jar and dt.jar files from the
> linux_jdk1.2.2/lib directory into the
> jdk1.2.2/lib directory.
>
> But when I tried to use it, i.e.
>
> java -Xdebug -Xnoagent -Djava.compiler=NONE
> -Xrunjdwp:transport=dt_socket,address=9123,suspend=n
> HelloWorld
>
> I get:
>
> Can't load "libjdwp.so", because Shared object "libjdwp.so" not found
> Could not create the Java virtual machine.
>
> Ok, so I copied libjdwp.so from the linux-jdk1.2.2 directory as well.
That won't work -- the FreeBSD native JDK can't use Linux shared libraries.
The information in the FAQ for this particular question was only put there
based on what folk on freebsd-java had said worked for them, I haven't
actually tried to use JBuilder myself :(.
> Going for brute force now, I manually copied each linux lib asked for
> into jdk1.2.2/jre/lib/i386/ directory until I got to ld-linux.so.2 at
> which point the above gives me
> a bus error...
See above. You might try creating some "blank" shared libraries and giving
them the appropriate names -- this may or may not work depending on how
much the native libraries are used.
Maybe the other folk who are actually using JBuilder have some better
suggestions?
> PS. To my suprise, JBuilder will run with the linux_jdk
> and linux javacomp jit {but it is slower than the native
> jdk with no jit}. And while I can run HelloWorld from
> the prompt as above with linux-jdk, I can't do it in JBuilder yet
> perhaps because it is using address=asimov.solaria.org:9123 and
> asimov.solaria.org isn't in my local dns yet.
It shouldn't surprise you that you can run things using the Linux JDK
under emulation. The speed difference is a bit surprising though.
> PS2: Enhydra4 Enterprise seems to work great with native
> jdk1.2.2 so far.
Cool!
--
Greg Lewis glewis@trc.adelaide.edu.au
Computing Officer +61 8 8303 5083
Teletraffic Research Centre
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