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Posted to user@ant.apache.org by Cyril Sagan <Cy...@sas.com> on 2004/01/24 02:15:01 UTC
Why did the ant.bat wrapper change in 1.6?
I'm experimenting with migration to Ant 1.6.
It seems that the ant.bat wrapper has changed. Now it only works
if I set CLASSPATH in the invoking environment. Can anyone help?
What happened to the "add %ANT_HOME%\lib\*.jar" semantics of the
1.5.x ant.bat wrapper?
---------------------------------------------------------------
C:\>set PATH=%ANT_HOME%\bin
C:\>ant -version
java.lang.ClassNotFoundException: org.apache.tools.ant.Main
at java.net.URLClassLoader$1.run(URLClassLoader.java:198)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:213)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:90)
C:\>set CLASSPATH=%ANT_HOME%\lib\ant.jar;%ANT_HOME%\ant-launcher.jar
C:\>ant -version
Apache Ant version 1.6.0 compiled on December 18 2003
---------------------------------------------------------------
What's the "right" way to run Ant 1.6 from a windows client?
Thanks.
--Cyril Sagan
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Re: Why did the ant.bat wrapper change in 1.6?
Posted by Conor MacNeill <co...@cortexebusiness.com.au>.
On Sat, 24 Jan 2004 12:15 pm, Cyril Sagan wrote:
> I'm experimenting with migration to Ant 1.6.
>
> It seems that the ant.bat wrapper has changed. Now it only works
> if I set CLASSPATH in the invoking environment. Can anyone help?
>
> What happened to the "add %ANT_HOME%\lib\*.jar" semantics of the
> 1.5.x ant.bat wrapper?
>
There are two reasons the wrapper was changed.
1. To get code from troublesome, os-specific scripts which sometimes worked
into Java where it could be more easily managed. If you've tried to work on
ant.bat across Win2k, Win98, WinME and 4Dos, you'd understand why this is an
improvment. There are some issues with this transition but mostly it should
work.
2. To address a paricular bug on Windows systems
(http://nagoya.apache.org/bugzilla/show_bug.cgi?id=11429). This bug was
likely to strike many more people in Ant 1.6 due to the much greater number
of ant jars resulting from the breakup of optional.jar.
The new launcher also removes the need for lcp.bat which had some issues with
spaces in directory names.
The first step in debugging such issues is to turn on echo in ant.bat and see
what command line is actually being used to start Ant's launch code. The next
is to confirm the directory layout is as expected, etc.
To debug further, I'd want to see the echo output, as well as the following
value %ANT_HOME%
dir listing of %ANT_HOME% and %ANT_HOME%\lib
I use the new launcher code on Win2k all the time without issue.
Cheers
Conor
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Re: Why did the ant.bat wrapper change in 1.6?
Posted by Antoine Lévy-Lambert <an...@antbuild.com>.
Cyril Sagan wrote:
>I'm experimenting with migration to Ant 1.6.
>
>It seems that the ant.bat wrapper has changed. Now it only works
>if I set CLASSPATH in the invoking environment. Can anyone help?
>
>What happened to the "add %ANT_HOME%\lib\*.jar" semantics of the
>1.5.x ant.bat wrapper?
>
>---------------------------------------------------------------
>C:\>set PATH=%ANT_HOME%\bin
>
>C:\>ant -version
>java.lang.ClassNotFoundException: org.apache.tools.ant.Main
> at java.net.URLClassLoader$1.run(URLClassLoader.java:198)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:213)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:90)
>
>C:\>set CLASSPATH=%ANT_HOME%\lib\ant.jar;%ANT_HOME%\ant-launcher.jar
>
>C:\>ant -version
>Apache Ant version 1.6.0 compiled on December 18 2003
>---------------------------------------------------------------
>
>What's the "right" way to run Ant 1.6 from a windows client?
>
>Thanks.
>
>--Cyril Sagan
>
>
>
>
>
Hi Cyril,
- my advice is to run ant without having the CLASSPATH environment
variable set.
Set the ANT_HOME and the JAVA_HOME environment variables, and make sure
that %ANT_HOME%\bin and %JAVA_HOME%\bin are in the path.
- I am not sure where your problem come from; can it be that you have a
mixture of 2 different ant versions ?
- by the way, if you installed ant 1.6 over ant 1.5, make sure that the
file $ANT_HOME/lib/optional.jar which exists in ant < 1.6 gets deleted.
Its equivalent in ant 1.6 are all the ant-*.jar, except the file
ant-launcher.jar which contains the start up classes.
- make sure that the ant script which you are starting is really the one
of ant 1.6, which is hitting a Launcher class, not Main.
Cheers,
Antoine
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