maven can't generate the scarab documentation on a fresh checkout

Hi,
i just downloaded the trunk from

     http://scarab.tigris.org/svn/scarab/trunk

i checked the README and just did follow the suggestions, which
have been written down there. So the very first thing i tried was to
generate the scarab documentation using maven. But that failed.

i am running on windows xp (sp2) using cygwin and
java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)

In shortest words, the system responds with:

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Provider for javax.xml.transform.TransformerFactory cannot be found
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This is what i see on my shell window, when running from within the
root directory of the scarab checkout:

$ maven xdoc:transform
  __  __
|  \/  |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
|_|  |_\__,_|\_/\___|_||_|  v. 1.0.2

Attempting to download commons-dbcp-1.2.2.jar.
118K downloaded
Attempting to download jcs-1.3.jar.
425K downloaded
Attempting to download lucene-core-2.2.0.jar.
525K downloaded
Attempting to download lucene-analyzers-2.2.0.jar.
70K downloaded
Attempting to download torque-gen-3.3-RC2.jar.
120K downloaded
Attempting to download torque-3.3-RC2.jar.
169K downloaded
Attempting to download torque-gen-templates-3.3-RC2.jar.
206K downloaded
Attempting to download fulcrum-parser-1.0.2-dev-r223202-patched.jar.
24K downloaded
Attempting to download hsqldb-1.8.0.7.jar.
628K downloaded
Attempting to download maven-tasks-plugin-1.3.0.jar.
8K downloaded
Attempting to download maven-findbugs-plugin-1.3.1.jar.
9K downloaded
build:start:

xdoc:init:
     [mkdir] Created dir: 
C:\usr\local\projects\scarab\trunk\target\generated-xdocs
     [mkdir] Created dir: C:\usr\local\projects\scarab\trunk\target\docs
Caught exception evaluating: 
org.apache.commons.jexl.ExpressionImpl@18e18a3. Reason: 
java.lang.Exception: Null comparison : GE
java.lang.Exception: Null comparison : GE
         at 
org.apache.commons.jexl.parser.ASTGENode.value(ASTGENode.java:95)
         at 
org.apache.commons.jexl.parser.ASTExpression.value(ASTExpression.java:85)
         at 
org.apache.commons.jexl.ExpressionImpl.evaluate(ExpressionImpl.java:123)
         at 
org.apache.commons.jelly.expression.jexl.JexlExpression.evaluate(JexlExpression.java:115)
         at 
org.apache.commons.jelly.expression.jexl.JexlExpressionFactory$ExpressionSupportLocal.evaluate(JexlExpressionFactory.java:168)
         at 
org.apache.commons.jelly.expression.ExpressionSupport.evaluateRecurse(ExpressionSupport.java:106)
         at 
org.apache.commons.jelly.expression.ExpressionSupport.evaluateAsBoolean(ExpressionSupport.java:116)
         at org.apache.commons.jelly.tags.core.IfTag.doTag(IfTag.java:87)
         at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:279)
         at 
org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:135)
         at 
org.apache.maven.jelly.tags.werkz.MavenGoalTag.runBodyTag(MavenGoalTag.java:79)
         at 
org.apache.maven.jelly.tags.werkz.MavenGoalTag$MavenGoalAction.performAction(MavenGoalTag.java:110)
         at com.werken.werkz.Goal.fire(Goal.java:639)
         at com.werken.werkz.Goal.attain(Goal.java:575)
         at com.werken.werkz.WerkzProject.attainGoal(WerkzProject.java:193)
         at 
org.apache.maven.jelly.tags.werkz.MavenAttainGoalTag.doTag(MavenAttainGoalTag.java:127)
         at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:279)
         at 
org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:135)
         at 
org.apache.commons.jelly.TagSupport.invokeBody(TagSupport.java:233)
         at 
com.werken.werkz.jelly.PostGoalTag$1.firePostGoal(PostGoalTag.java:87)
         at com.werken.werkz.Goal.firePostGoalCallbacks(Goal.java:710)
         at com.werken.werkz.Goal.fire(Goal.java:654)
         at com.werken.werkz.Goal.attain(Goal.java:575)
         at com.werken.werkz.Goal.attainPrecursors(Goal.java:488)
         at com.werken.werkz.Goal.attain(Goal.java:573)
         at 
org.apache.maven.plugin.PluginManager.attainGoals(PluginManager.java:671)
         at org.apache.maven.MavenSession.attainGoals(MavenSession.java:263)
         at org.apache.maven.cli.App.doMain(App.java:488)
         at org.apache.maven.cli.App.main(App.java:1239)
         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:324)
         at com.werken.forehead.Forehead.run(Forehead.java:551)
         at com.werken.forehead.Forehead.main(Forehead.java:581)
set-xml-transformer:

     [style] Transforming into 
C:\usr\local\projects\scarab\trunk\target\generated-xdocs
     [style] Processing 
C:\usr\local\projects\scarab\trunk\xdocs\scarab_properties.xml to 
C:\usr\local\projects\scarab\trunk\target\generated-xdocs\sca
rab_properties.xml
     [style] Loading stylesheet 
C:\usr\local\projects\scarab\trunk\xdocs\properties.xsl

BUILD FAILED
File...... c:\usr\local\projects\scarab\trunk\maven.xml
Element... ant:style
Line...... 277
Column.... 76
Provider for javax.xml.transform.TransformerFactory cannot be found
Total time: 15 seconds
Finished at: Wed Mar 12 21:52:24 CET 2008


hdab@xpw001-p34 /cygdrive/c/usr/local/projects/scarab/trunk
$ which java
/cygdrive/c/j2sdk1.4.2_08/bin/java

hdab@xpw001-p34 /cygdrive/c/usr/local/projects/scarab/trunk
$ maven --version
  __  __
|  \/  |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \  ~ intelligent projects ~
|_|  |_\__,_|\_/\___|_||_|  v. 1.0.2


hdab@xpw001-p34 /cygdrive/c/usr/local/projects/scarab/trunk
$
Anybody got an idea what might possibly be te problem ?

thanks, regards, hussayn