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Posted to user@ant.apache.org by Ravi Roy <ra...@gmail.com> on 2008/06/20 12:54:32 UTC
Best practises for Ant Memory usage
Hi All,
>From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
would like to know the best practises from the people who have
experience with Ant Memory Management. Some set of tips & tricks..
would help every one here..
Thanks in advance!
Regards,
Ravi.
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Fwd: Best practises for Ant Memory usage
Posted by Ravi Roy <ra...@gmail.com>.
Thanks for your reply, These setting worked and problem is gone ;-)
Create system variable ANT_OPTS and set the value of this to -DXms=1024M
-DXmx=1024M -XX:+UseParallelGC
Hope this would help, I had similar problem, which was solved using
this.
-----Original Message-----
From: Ravi Roy [mailto:ravi.aroy@gmail.com]
Sent: Friday, June 20, 2008 6:55 PM
To: Ant Users List; Henning Bredel
Subject: Re: Best practises for Ant Memory usage
Hi,
Thanks for your reply Henning. Yes, javac causes memory error, following
is the error message. I am using Sun JDK 1.6.0_03-b05.
________________________________________________________________________
_________
compile:
[javac] Compiling 4 source files to d:\Build\iPiece\Java\iTool\bin
[javac]
[javac]
[javac] The system is out of resources.
[javac] Consult the following stack trace for details.
[javac] java.lang.OutOfMemoryError: Java heap space
[javac] at com.sun.tools.javac.util.Name.fromChars(Name.java:115)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:144)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:150)
[javac] at
com.sun.tools.javac.util.Name$Table.fromString(Name.java:529)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writePool(ClassWriter.java:510)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1565
)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1443)
[javac] at
com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:618)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1289)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1259)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:353)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:279)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:270)
[javac] at com.sun.tools.javac.Main.compile(Main.java:69)
[javac] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[javac] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:56)
[javac] at
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065)
[javac] at
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882)
[javac] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[javac] at sun.reflect.GeneratedMethodAccessor179.invoke(Unknown
Source)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1
06)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:357)
[javac] at
org.apache.tools.ant.Target.performTasks(Target.java:385)
[javac] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
BUILD FAILED
D:\Build\iPiece\build.xml:209: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:9: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:32: The following error occurred while
executing this line:
d:\Build\iPiece\Java\iTool\build_itool.xml:23: Compile failed; see the
compiler error output for details.
at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHe
lper.java:508)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418)
at
org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1
06)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecut
or.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
at org.apache.tools.ant.Main.runBuild(Main.java:758)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
________________________________________________________________________
_________
I have set ANT_OPTS to -DXms=1536m -DXmx=1536m , earlier it was set to
1024m.
Thanks.
Regards,
Ravi.
On Fri, Jun 20, 2008 at 4:33 PM, Henning Bredel <h....@gmx.de> wrote:
>> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
>> would like to know the best practises from the people who have
>> experience with Ant Memory Management. Some set of tips & tricks..
>> would help every one here..
>
> Are you sure, that ant causes the memory error? For example it could
> be the javac command which runs out of heap size . . .
>
> Please attach an error message to give a hint, what the Out- of-Memory
> error causes.
>
> Regards
>
> Henning
>
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is privileged and confidential, and is intended only for the use of
the addressee(s) named above and others who have been specifically
authorized to receive it. If you are not the intended recipient, you
are hereby notified that any dissemination, distribution or copying of
this message and/or attachments is strictly prohibited. The company
accepts no liability for any damage caused by any virus transmitted by
this email. Furthermore, the company does not warrant a proper and
complete transmission of this information, nor does it accept
liability for any delays. If you have received this message in error,
please contact the sender and delete the message. Thank you.
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Re: Best practises for Ant Memory usage
Posted by Henning Bredel <h....@gmx.de>.
On Friday 20 June 2008 15:24:56 Ravi Roy wrote:
> Hi,
> Thanks for your reply Henning. Yes, javac causes memory error,
> following is the error message. I am using Sun JDK 1.6.0_03-b05.
> ___________________________________________________________________________
>______ compile:
> [javac] Compiling 4 source files to d:\Build\iPiece\Java\iTool\bin
> [javac]
> [javac]
> [javac] The system is out of resources.
> [javac] Consult the following stack trace for details.
> [javac] java.lang.OutOfMemoryError: Java heap space
>
> I have set ANT_OPTS to -DXms=1536m -DXmx=1536m , earlier it was set to
> 1024m.
Have you tried to use the attribute 'memoryMaximumSize'
and 'memoryInitialSize' of the javac task!?
Although the ANT_OPTS should be passed through to the
JVM, I run into a java heap space error, too, while deploying
to a Tomcat . . . Anyway, I am not sure, if the pass through
is really done. Perhaps anyone knows more about that.
An alternative would be to use the 'fork' attribute, to use
the JDK externally.
More info:
http://ant.apache.org/manual/CoreTasks/javac.html
Regards
Henning
RE: Best practises for Ant Memory usage
Posted by "Sharma, Jaikumar" <ja...@barco.com>.
Create system variable ANT_OPTS and set the value of this to -DXms=1024M
-DXmx=1024M -XX:+UseParallelGC
Hope this would help, I had similar problem, which was solved using
this.
-----Original Message-----
From: Ravi Roy [mailto:ravi.aroy@gmail.com]
Sent: Friday, June 20, 2008 6:55 PM
To: Ant Users List; Henning Bredel
Subject: Re: Best practises for Ant Memory usage
Hi,
Thanks for your reply Henning. Yes, javac causes memory error, following
is the error message. I am using Sun JDK 1.6.0_03-b05.
________________________________________________________________________
_________
compile:
[javac] Compiling 4 source files to d:\Build\iPiece\Java\iTool\bin
[javac]
[javac]
[javac] The system is out of resources.
[javac] Consult the following stack trace for details.
[javac] java.lang.OutOfMemoryError: Java heap space
[javac] at com.sun.tools.javac.util.Name.fromChars(Name.java:115)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:144)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:150)
[javac] at
com.sun.tools.javac.util.Name$Table.fromString(Name.java:529)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writePool(ClassWriter.java:510)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1565
)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1443)
[javac] at
com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:618)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1289)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1259)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:353)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:279)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:270)
[javac] at com.sun.tools.javac.Main.compile(Main.java:69)
[javac] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[javac] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:56)
[javac] at
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065)
[javac] at
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882)
[javac] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[javac] at sun.reflect.GeneratedMethodAccessor179.invoke(Unknown
Source)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1
06)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:357)
[javac] at
org.apache.tools.ant.Target.performTasks(Target.java:385)
[javac] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
BUILD FAILED
D:\Build\iPiece\build.xml:209: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:9: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:32: The following error occurred while
executing this line:
d:\Build\iPiece\Java\iTool\build_itool.xml:23: Compile failed; see the
compiler error output for details.
at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHe
lper.java:508)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418)
at
org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1
06)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecut
or.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
at org.apache.tools.ant.Main.runBuild(Main.java:758)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
________________________________________________________________________
_________
I have set ANT_OPTS to -DXms=1536m -DXmx=1536m , earlier it was set to
1024m.
Thanks.
Regards,
Ravi.
On Fri, Jun 20, 2008 at 4:33 PM, Henning Bredel <h....@gmx.de> wrote:
>> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
>> would like to know the best practises from the people who have
>> experience with Ant Memory Management. Some set of tips & tricks..
>> would help every one here..
>
> Are you sure, that ant causes the memory error? For example it could
> be the javac command which runs out of heap size . . .
>
> Please attach an error message to give a hint, what the Out- of-Memory
> error causes.
>
> Regards
>
> Henning
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org For additional
commands, e-mail: user-help@ant.apache.org
DISCLAIMER:
Unless indicated otherwise, the information contained in this message is privileged and confidential, and is intended only for the use of the addressee(s) named above and others who have been specifically authorized to receive it. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message and/or attachments is strictly prohibited. The company accepts no liability for any damage caused by any virus transmitted by this email. Furthermore, the company does not warrant a proper and complete transmission of this information, nor does it accept liability for any delays. If you have received this message in error, please contact the sender and delete the message. Thank you.
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
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Re: Best practises for Ant Memory usage
Posted by Ravi Roy <ra...@gmail.com>.
Hi,
Thanks for your reply Henning. Yes, javac causes memory error,
following is the error message. I am using Sun JDK 1.6.0_03-b05.
_________________________________________________________________________________
compile:
[javac] Compiling 4 source files to d:\Build\iPiece\Java\iTool\bin
[javac]
[javac]
[javac] The system is out of resources.
[javac] Consult the following stack trace for details.
[javac] java.lang.OutOfMemoryError: Java heap space
[javac] at com.sun.tools.javac.util.Name.fromChars(Name.java:115)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:144)
[javac] at com.sun.tools.javac.util.Name.fromString(Name.java:150)
[javac] at com.sun.tools.javac.util.Name$Table.fromString(Name.java:529)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writePool(ClassWriter.java:510)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1565)
[javac] at
com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1443)
[javac] at
com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:618)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1289)
[javac] at
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1259)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:353)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:279)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:270)
[javac] at com.sun.tools.javac.Main.compile(Main.java:69)
[javac] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[javac] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:56)
[javac] at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065)
[javac] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882)
[javac] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[javac] at sun.reflect.GeneratedMethodAccessor179.invoke(Unknown Source)
[javac] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[javac] at java.lang.reflect.Method.invoke(Method.java:597)
[javac] at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:357)
[javac] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[javac] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
BUILD FAILED
D:\Build\iPiece\build.xml:209: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:9: The following error occurred while
executing this line:
d:\Build\Ant\Main-Targets.xml:32: The following error occurred while
executing this line:
d:\Build\iPiece\Java\iTool\build_itool.xml:23: Compile failed; see the
compiler error output for details.
at org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:508)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
at org.apache.tools.ant.Main.runBuild(Main.java:758)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
_________________________________________________________________________________
I have set ANT_OPTS to -DXms=1536m -DXmx=1536m , earlier it was set to 1024m.
Thanks.
Regards,
Ravi.
On Fri, Jun 20, 2008 at 4:33 PM, Henning Bredel <h....@gmx.de> wrote:
>> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
>> would like to know the best practises from the people who have
>> experience with Ant Memory Management. Some set of tips & tricks..
>> would help every one here..
>
> Are you sure, that ant causes the memory error? For example
> it could be the javac command which runs out of heap size . . .
>
> Please attach an error message to give a hint, what the Out-
> of-Memory error causes.
>
> Regards
>
> Henning
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
For additional commands, e-mail: user-help@ant.apache.org
Re: Best practises for Ant Memory usage
Posted by Henning Bredel <h....@gmx.de>.
> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
> would like to know the best practises from the people who have
> experience with Ant Memory Management. Some set of tips & tricks..
> would help every one here..
Are you sure, that ant causes the memory error? For example
it could be the javac command which runs out of heap size . . .
Please attach an error message to give a hint, what the Out-
of-Memory error causes.
Regards
Henning
Re: Best practises for Ant Memory usage
Posted by Upul Godage <up...@gmail.com>.
Depending on what the Ant script is doing you may need to change the Ant JVM
settings. I used to increase the heap memory space when running XDoclet in
a large project using the ANT_OPTS environment variable. Otherwise I would
get out of memory errors.
This page may be useful. http://wiki.apache.org/ant/TheElementsOfAntStyle
Upul
On Fri, Jun 20, 2008 at 4:24 PM, Ravi Roy <ra...@gmail.com> wrote:
> Hi All,
>
> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I
> would like to know the best practises from the people who have
> experience with Ant Memory Management. Some set of tips & tricks..
> would help every one here..
>
> Thanks in advance!
>
> Regards,
> Ravi.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>