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Posted to user@ant.apache.org by Bill Winspur <bw...@wynnon.com> on 2005/12/27 16:34:14 UTC
Using the bootclasspath
I'm trying to link a diagnostic classloader into the java task, but
having set up the bootclasspath element,
by prepending my diagnostics jar path to the default contents of
sun.boot.class.path, and having forked
the jvm, I get the message
bootclasspath ignored since build.sysclasspath has been set.
I have been unable to discover what this message means. Can somebody
direct me to ant's classloading reference material, or explain how I can use
the boot classpath?
Thanks,
Bill
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Re: Using the bootclasspath
Posted by Bill Winspur <bw...@wynnon.com>.
Thanks for the pointer stephan, I'll continue to experiment and post my
results back here.
Stefan Bodewig wrote:
>On Tue, 27 Dec 2005, Bill Winspur <bw...@wynnon.com> wrote:
>
>
>
>>bootclasspath ignored since build.sysclasspath has been set.
>>
>>
>
>You can find information about build.sysclasspath in the manual inside
>the Concepts and Types section. There are some difficult interactions
>between build.sysclasspath and user specified bootclasspath and some
>things have changed between Ant 1.6.x and Ant's current svn trunk, so
>I'm not absolutely sure under which circumstances the bootclasspath
>would be ignored in 1.6.
>
>Whatever the logic might be, first check that you really intend to set
>build.sysclasspath at all. You must be setting this property in some
>way or else you wouldn't see that message. Using the bootclasspath in
>a (forked) Java VM generally works as expected.
>
>Stefan
>
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Re: Using the bootclasspath
Posted by Stefan Bodewig <bo...@apache.org>.
On Tue, 27 Dec 2005, Bill Winspur <bw...@wynnon.com> wrote:
> bootclasspath ignored since build.sysclasspath has been set.
You can find information about build.sysclasspath in the manual inside
the Concepts and Types section. There are some difficult interactions
between build.sysclasspath and user specified bootclasspath and some
things have changed between Ant 1.6.x and Ant's current svn trunk, so
I'm not absolutely sure under which circumstances the bootclasspath
would be ignored in 1.6.
Whatever the logic might be, first check that you really intend to set
build.sysclasspath at all. You must be setting this property in some
way or else you wouldn't see that message. Using the bootclasspath in
a (forked) Java VM generally works as expected.
Stefan
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Re: Using the bootclasspath
Posted by Bill Winspur <bw...@wynnon.com>.
Thanks for the input Roger. As you indicated, I ran outside ant and
solved the problem I had, but I
still need to be able to run my debug classes under ant. I'll experiment
with ANT_OPTS and will
post back here.
Rainer Noack wrote:
>Hi Bill,
>
>Typically one will set the bootclasspath via the extended jvm argument
>-Xbootclasspath (see java tool documentation)
>
>If you run ant via the the shell script you have to set jvm arguments via
>the environment variable
>ANT_OPTS
>
>See http://ant.apache.org/manual/index.html -> Running Ant -> Environment
>Variables
>
>Cheers
>
>Rainer
>
>
>
>
>>-----Original Message-----
>>From: Bill Winspur [mailto:bwinspur@wynnon.com]
>>Sent: Tuesday, December 27, 2005 4:34 PM
>>To: Ant Users List
>>Subject: Using the bootclasspath
>>
>>
>>I'm trying to link a diagnostic classloader into the java task, but
>>having set up the bootclasspath element,
>>by prepending my diagnostics jar path to the default contents of
>>sun.boot.class.path, and having forked
>>the jvm, I get the message
>>
>>bootclasspath ignored since build.sysclasspath has been set.
>>
>>I have been unable to discover what this message means. Can
>>somebody direct me to ant's classloading reference material,
>>or explain how I can use the boot classpath?
>>
>>Thanks,
>>
>>Bill
>>
>>
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>>To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>>For additional commands, e-mail: user-help@ant.apache.org
>>
>>
>>
>>
>
>
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RE: Using the bootclasspath
Posted by Rainer Noack <ra...@noacks.net>.
Hi Bill,
Typically one will set the bootclasspath via the extended jvm argument
-Xbootclasspath (see java tool documentation)
If you run ant via the the shell script you have to set jvm arguments via
the environment variable
ANT_OPTS
See http://ant.apache.org/manual/index.html -> Running Ant -> Environment
Variables
Cheers
Rainer
> -----Original Message-----
> From: Bill Winspur [mailto:bwinspur@wynnon.com]
> Sent: Tuesday, December 27, 2005 4:34 PM
> To: Ant Users List
> Subject: Using the bootclasspath
>
>
> I'm trying to link a diagnostic classloader into the java task, but
> having set up the bootclasspath element,
> by prepending my diagnostics jar path to the default contents of
> sun.boot.class.path, and having forked
> the jvm, I get the message
>
> bootclasspath ignored since build.sysclasspath has been set.
>
> I have been unable to discover what this message means. Can
> somebody direct me to ant's classloading reference material,
> or explain how I can use the boot classpath?
>
> Thanks,
>
> Bill
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
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