That sounds like a classloader issue, but I've reduced the problem to a
minimal project that has NO dependency (expect ant 1.5.3.1).
The maven.xml only defines the ant task (that is in target/classes) and
invoke it.
You can try it by downloading :
http://loof.free.fr/ant-maven-failure.zip (only 10Ko)
>maven ndl:test
__ __
| \/ |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \ ~ intelligent projects ~
|_| |_\__,_|\_/\___|_||_| v. 1.0.2
build:start:
ndl:test:
[taskdef] Trying to override old definition of task test
[test] Thread.currentThread().getContextClassLoader() = *null*
BUILD SUCCESSFUL
Total time: 4 seconds
Finished at: Fri Oct 14 11:07:30 CEST 2005
>ant -v
Apache Ant version 1.5.3 compiled on April 16 2003
Buildfile: build.xml
Detected Java version: 1.4 in: C:\j2sdk1.4.2_06\jre
Detected OS: Windows 2000
parsing buildfile build.xml with URI =
file:D:/workspace/ant-maven-failure/build.xml
Project base dir set to: D:\workspace\ant-maven-failure
Build sequence for target `test' is [test]
Complete build sequence is [test]
test:
Trying to override old definition of task test
[test] Thread.currentThread().getContextClassLoader() =
[EMAIL PROTECTED]
BUILD SUCCESSFUL
Total time: 1 second
Arnaud HERITIER a écrit :
Hi Nicolas
In maven 1.X there's 2 classloaders
The root classloader where is ant and the root.maven classloader where is
maven and its dependencies.
If you use an ant task which need a dependency you must add the in the root
classloader to allow ant to find it.
In your POM these dependencies must have :
<properties>
<classloader>root</classloader>
</properties>
Also, you can take a look at this issue :
http://jira.codehaus.org/browse/MAVEN-1712
Arnaud
On 10/14/05, Nicolas De Loof <[EMAIL PROTECTED]> wrote:
I've found the cause of the problem :
I've reduced my ant task to this code :
execute() {
log("getContextClassLoader() = " +
Thread.currentThread().getContextClassLoader());
}
When I run it with ANT (1.5.3.1 <http://1.5.3.1>) I get
[test] Thread.currentThread().getContextClassLoader() =
[EMAIL PROTECTED]
So It may be the same from a maven.xml script !
When I run "maven ndl:test" (maven 1.0.2) I get
ndl:test:
[test] Thread.currentThread().getContextClassLoader() = *null*
BUILD SUCCESSFUL
Is there any reason for this, a workaround or anything to do ?
Nico.
Nicolas De Loof a écrit :
Hello,
I'm using maven 1.0.2 and try to create a plugin for an ant task, that
itself uses Springframework.
As I get strange troubles, I've dropped all specific code to get only
an ant task that creates a spring context.
The spring context is reduced to a single bean of type String.
When I run it as an ant task, it works fine, ie. the Spring context is
loaded :
ant
Buildfile: build.xml
test:
Trying to override old definition of task test
[test] TEST !!!!
[test] 13 oct. 2005 17:33:06
org.springframework.beans.factory.xml.XmlBeanDefinitionReader
loadBeanDefinitions
[test] INFO: Loading XML bean definitions from file
[D:\workspace\ant-maven-failure\Designer-context.xml]
...
When I run it from a maven.xml goal (ndl:test) it fails with a strange
error :
maven -e ndl:test
__ __
| \/ |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \ ~ intelligent projects ~
|_| |_\__,_|\_/\___|_||_| v. 1.0.2
build:start:
ndl:init:
[taskdef] Trying to override old definition of task test
ndl:test:
[test] TEST !!!!
BUILD FAILED
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'reverse' defined in file
[D:\workspace\ant-maven-failure\Designer-context.xml]: Instantiation
of bean failed; nested exception is java.lang.IllegalStateException:
Bean definition does not carry a resolved bean class
java.lang.IllegalStateException: Bean definition does not carry a
resolved bean class
at
org.springframework.beans.factory.support.AbstractBeanDefinition.getBeanClass
(AbstractBeanDefinition.java:205)
Does anybody have any suggestion to investigate and solve this ?
You can download the project from
http://loof.free.fr/ant-maven-failure.zip (3Mo)
run "ant" and compare with "maven ndl:test"
Nico.
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