Wildlfy 10 deployement - NoClassDefFoundError: org/picketlink/common/exceptions/ProcessingException - classloader

Question

I'm overriding a server filter class from a jar in the Wildlfy 10 modules.
It's a quick and dirty solution : copied/pasted the content of the class in my custom class and referenced my custom class instead.
My parent pom is like this :
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-api</artifactId>
<version>${picketlink-version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-federation</artifactId>
<version>${picketlink-version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-common</artifactId>
<version>${picketlink-version}</version>
<scope>provided</scope>
</dependency>
And I have the following section in the war pom containing the custom class :
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-federation</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>picketlink-common</artifactId>
<scope>provided</scope>
</dependency>
I also have a jboss-deployment-description.xml file in my war where the package containing the missing class is already referenced (this is from an instruction on how to use the package for other things) :
<jboss-deployment-structure>
<deployment>
<!-- You must configure the PicketLink dependency to your deployment. The dependency above is a reference to a static module
from JBoss EAP modules directory. -->
<dependencies>
<module name="org.picketlink"/>
<module name="org.picketlink.common"/>
</dependencies>
</deployment>
and the main package "org.picketlink" is also in my ear's manifest file which packages the war :
<manifestEntries>
<Dependencies>
com.docapost.configuration,org.picketlink
</Dependencies>
</manifestEntries>
This was also done to solve some past ClassNotFoundException in the past if i recall correctly.
The jar version in the pom is the same as the version in my Wildfly (picketlink 2.7.0.Final)
At deployment, I get the exception from my custom class ZephirSPFilter :
Error getting reflective information for class com.docapost.zephir.filters.ZephirSPFilter with ClassLoader ModuleClassLoader
And :
Caused by: java.lang.NoClassDefFoundError: org/picketlink/common/exceptions/ProcessingException
Caused by: java.lang.ClassNotFoundException: org.picketlink.common.exceptions.ProcessingException from [Module \"deployment.zephir-ear.ear.zephir-web.war:main\" from Service Module Loader]"},

Answer 1

As far as I understand you have ear and included in it war. And you added jboss-deployment-description.xml to your war. But this file should be placed in the top level deployment, i.e. in your case to ear.
See https://docs.jboss.org/author/display/AS7/Class+Loading+in+AS7