I put this line in the code before it broke:
System.out.println("URL: " +
this.getClass().getClassLoader().getResource("org/codehaus/plexus/util")
);
and it printed:
URL:
jar:file:/c:/opt/maven-2.0.4/core/plexus-utils-1.1.jar!/org/codehaus/ple
xus/util
I've upgraded my maven installation to 2.0.7 and it works. This doesn't
explain why it worked when it was retrieved from the Maven repository
(there was only one version of doxia in the repository), but it solves
my problem. If you want me to run more tests, let me know.
Jonathan Card
-----Original Message-----
From: Jon Card [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 24, 2007 6:49 PM
To: Maven Developers List
Subject: RE: Building old versions
Forget the question at the end of my last email. The call:
ReaderFactory.newXmlReader(bookDescriptor);
in DefaultBookIo#readBook(File) produces a NoClassDefFoundError:
org/codehaus/plexus/util/ReaderFactory. I don't think it can find that
jar at all when I build the plugin.
I'm simple running "mvn clean install" from either the project directory
(the parent directory of "doxia-book") or from "doxia-book". Is that the
correct thing to do?
Jonathan Card
-----Original Message-----
From: Jon Card [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 24, 2007 6:34 PM
To: Maven Developers List
Subject: RE: Building old versions
I'm afraid I'm getting the same exception, although the Maven2 plugin
for Eclipse is no longer showing me plexus-utils:1.0.2 and
plexus-utils:1.4.5.
The unit tests are running and I'm getting the output for an APT source
to docbook target book rendering, which is what I'm trying to do in my
application, but when I run "mvn clean pre-site" in my app, I still get:
[INFO] Trace
java.lang.NoClassDefFoundError:
org/codehaus/plexus/util/xml/XmlStreamReader
at
org.apache.maven.doxia.book.services.io.DefaultBookIo.readBook(DefaultBo
okIo.java:65)
at
org.apache.maven.doxia.book.DefaultBookDoxia.loadBook(DefaultBookDoxia.j
ava:75)
at
org.apache.maven.doxia.plugin.DoxiaRenderBooksMojo.execute(DoxiaRenderBo
oksMojo.java:189)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginMa
nager.java:412)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Default
LifecycleExecutor.java:534)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifec
ycle(DefaultLifecycleExecutor.java:475)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultL
ifecycleExecutor.java:454)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandle
Failures(DefaultLifecycleExecutor.java:306)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(
DefaultLifecycleExecutor.java:273)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifec
ycleExecutor.java:140)
at
org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:256)
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:585)
at
org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
[INFO]
------------------------------------------------------------------------
Line 65 in DefaultBookIo, the site of the exception, reads:
return new BookModelXpp3Reader().read( new FileReader( bookDescriptor ),
true);
When I refactory that to:
BookModelXpp3Reader bookReader = new BookModelXpp3Reader();
FileReader fileReader = new FileReader( bookDescriptor );
return bookReader.read( fileReader, true );
the exception is thrown in the first line (I shifted the lines about to
make sure I was using what I built, not the old build).
The only time I can see that it would try to load the class
XmlStreamReader is because BookModelXpp3Reader imports
"org.codehaus.plexus.util.ReaderFactory", which has static methods that
reference "XmlStreamReader". It doesn't make a lot of sense to me that
it would try to load "XmlStreamReader" in order to instantiate
BookModelXpp3Reader without at least a "static {}" block in
"ReaderFactory", but I can't figure anything else out. The problem is,
"ReaderFactory" is in the same jar as "XmlStreamReader", so if it finds
out it needs "XmlStreamReader", it has loaded "ReaderFactory" and should
be able to find "XmlStreamReader", right?
Jonathan Card
-----Original Message-----
From: Dennis Lundberg [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 24, 2007 3:11 PM
To: Maven Developers List
Subject: Re: Building old versions
Unfortunately there was a problem with the dependencies specified in
1.0-alpha-9. I'm working on getting a quick 1.0-alpha-10 out the door
that fixes these problems. It would be really helpful if you could try
the latest 1.0-alpha-10-SNAPSHOT to see if that solves your problems.
Jon Card wrote:
I'm trying to add something to the most recent release of
org.apache.maven.doxia:doxia, 1.0-alpha-9. My POM works find when I
get
the plugin from the repository, but when I check out the code tagged
as
1.0-alpha-9, build it, and install it, I get an exception:
[INFO] Trace
java.lang.NoClassDefFoundError:
org/codehaus/plexus/util/xml/XmlStreamReader
at
org.apache.maven.doxia.book.services.io.DefaultBookIo.readBook(DefaultBo
okIo.java:65)
at
org.apache.maven.doxia.book.DefaultBookDoxia.loadBook(DefaultBookDoxia.j
ava:75)
at
org.apache.maven.doxia.plugin.DoxiaRenderBooksMojo.execute(DoxiaRenderBo
oksMojo.java:189)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginMa
nager.java:412)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Default
LifecycleExecutor.java:534)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifec
ycle(DefaultLifecycleExecutor.java:475)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultL
ifecycleExecutor.java:454)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandle
Failures(DefaultLifecycleExecutor.java:306)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(
DefaultLifecycleExecutor.java:273)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifec
ycleExecutor.java:140)
at
org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
at
org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:256)
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:585)
at
org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
[INFO]
------------------------------------------------------------------------
The only reference I've found to such an exception in the past is to
more recent builds, where a dependency had to be added. This has a
different stack trace and the plugin works in the released version. Am
I
not building it right? The exception happens when I check out the
HEAD,
as well, and with a clean check-out (without my changes, which are in
a
different part of the code).
Jon Card
Crown Partners
O 303.350.1115
M 303.916.3966
F 303.770.9054
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