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Subject: Antwort: Problems with Ant Style Task Classpath Bug 3934 Workaround
To: "Ant Users List" <ant-user@jakarta.apache.org>
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From: Anton_Grimm@mn.man.de
Date: Fri, 25 Jan 2002 08:45:31 +0100
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I was facing the same problem this week
with ant-1.3.

To solve the problem I built ant from source
and exchanged jaxp.jar (1.0.1) und parser.jar in the lib-directory
with the jar-files for jaxp-1.1 (jaxp.jar, crimson.jar, xalan.jar)
before(!) building.

This works with optional.jar in the lib-directory for
the <style>-task without the <process> attribute.

hope this helps

Toni

****************************************************
MAN Nutzfahrzeuge AG
Anton Grimm
Abt. IDP (SoftwareProduktionsumgebungen)
Dachauerstr.667
80995 M=FCnchen

Tel.:      089/1580-1054
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****************************************************


                                                                       =
                                                    =20
                    "Vaughan Jackson"                                  =
                                                    =20
                    <vaughan.jackson@tumbl        An:     "'ant-user@ja=
karta.apache.org'" <ant-user@jakarta.apache.org>    =20
                    eweed.com>                    Kopie:               =
                                                    =20
                                                  Thema:  Problems with=
 Ant Style Task Classpath Bug 3934 Workaround       =20
                    25.01.02 01:04                                     =
                                                    =20
                    Bitte antworten an                                 =
                                                    =20
                    "Ant Users List"                                   =
                                                    =20
                                                                       =
                                                    =20
                                                                       =
                                                    =20




Hi,

I am trying to apply the workaround described in the additional
comment at the end of the bugzilla report for bug 3934 at

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=3D3934
<http://nagoya.apache.org/bugzilla/show_bug.cgi?id=3D3934>

The comment is this:

------- Additional Comments From  <mailto:bodewig@apache.org> Stefan
Bodewig
2001-10-19 01:04 -------

The problem is that optional.jar is in the system classpath, thus
XalanLiaison

will be loaded from the system classloader, which doesn't know anything=

about

the classpath you have specified.



The only solution for you is to remove optional.jar from ANT_HOME/lib a=
nd
add

an entry for it to the classpath of your <style> task.



I'm afraid this cannot be fixed (at least not in the context of Ant 1.x=
).
I now have separated out the optional jar file into a separate director=
y,
and have a style task that looks like this:

    <!-- Use XSLT to generate the taglib documentation -->
    <style   basedir=3D"${xslt.documents}"
             destdir=3D"${src.doc}"
             extension=3D".html"
             style=3D"${xslt.stylesheets}/taglibDoc.xsl"
             includes=3D"${xslt.includes}"
             processor=3D"trax" >
      <classpath>
        <pathelement location=3D"${xalan.lib}/xalan.jar" />
        <pathelement location=3D"${xalan.lib}/xml-apis.jar" />
        <pathelement location=3D"${xalan.lib}/xerces.jar" />
        <pathelement
location=3D"${ant_optional.lib}/jakarta-ant-1.4.1-optional.jar" />
      </classpath>
    </style>

It is forcing the use of the trax processor, because it is using Xalan =
2.2,
and Stefan
Bodewig says this is necessary for Xalan 2 (
http://www.mail-archive.com/ant-user@jakarta.apache.org/msg11179.html
<http://www.mail-archive.com/ant-user@jakarta.apache.org/msg11179.html>=
 ).

However, it remains the case that the only way I can get the style task=
 to
work is to
put the xalan.jar file in the ant lib directory or system classpath - w=
hich
cannot be
cleanly reproduced in an automated build. With the above style task, an=
d
relocated
optional jar file, which is the intended workaround, I see this (simila=
r)
error instead:

javax.xml.transform.TransformerFactoryConfigurationError: Provider
org.apache.xa
lan.processor.TransformerFactoryImpl not found
        at
javax.xml.transform.TransformerFactory.newInstance(TransformerFactory
.java:110)
        at
org.apache.tools.ant.taskdefs.optional.TraXLiaison.<init>(TraXLiaison
.java:93)
        at java.lang.Class.newInstance0(Native Method)
        at java.lang.Class.newInstance(Class.java:237)
        at
org.apache.tools.ant.taskdefs.XSLTProcess.resolveProcessor(XSLTProces
s.java:269)
        at
org.apache.tools.ant.taskdefs.XSLTProcess.getLiaison(XSLTProcess.java
:394)
        at
org.apache.tools.ant.taskdefs.XSLTProcess.execute(XSLTProcess.java:14
1)
        at org.apache.tools.ant.Task.perform(Task.java:217)
        at org.apache.tools.ant.Target.execute(Target.java:184)
        at org.apache.tools.ant.Target.performTasks(Target.java:202)
        at org.apache.tools.ant.Project.executeTarget(Project.java:601)=

        at org.apache.tools.ant.Project.executeTargets(Project.java:560=
)
        at org.apache.tools.ant.Main.runBuild(Main.java:454)
        at org.apache.tools.ant.Main.start(Main.java:153)
        at org.apache.tools.ant.Main.main(Main.java:176)

What am I doing wrong?

Thanks,
Vaughan.

___________________________________________________
Vaughan Jackson
Development
Tumbleweed Communications
vaughan.jackson@tumbleweed.com / +1 (650) 216 2532
___________________________________________________




=



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