AS submodule: IdentityConfigurationBuilder error messages are missing real reasons

I'm still missing the real exception when configuring PL via submodule

Example

The real exception is:
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throw new SecurityConfigurationException("Could not resolve property [" + propertyName + "] from mapped class [" + this.mappedClass + "].");
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but the logged error msg is:
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13:05:53,222 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.PartitionManagerService.picketlink-ldap: org.jboss.msc.service.StartException in service jboss.PartitionManagerService.picketlink-ldap: Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1767) [jboss-msc-1.0.4.GA-redhat-1.jar:1.0.4.GA-redhat-1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
Caused by: org.picketlink.idm.config.SecurityConfigurationException: PLIDM000713: Could not create configuration.
at org.picketlink.idm.config.IdentityConfigurationBuilder.create(IdentityConfigurationBuilder.java:168)
at org.picketlink.idm.config.IdentityConfigurationBuilder.buildAll(IdentityConfigurationBuilder.java:112)
at org.picketlink.as.subsystem.idm.service.PartitionManagerService.start(PartitionManagerService.java:84)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.4.GA-redhat-1.jar:1.0.4.GA-redhat-1]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.4.GA-redhat-1.jar:1.0.4.GA-redhat-1]
... 3 more
Caused by: org.picketlink.idm.config.SecurityConfigurationException: PLIDM000714: Invalid configuration [picketlink-ldap-configuration].
at org.picketlink.idm.config.IdentityConfigurationBuilder.validate(IdentityConfigurationBuilder.java:134)
at org.picketlink.idm.config.IdentityConfigurationBuilder.create(IdentityConfigurationBuilder.java:144)
... 7 more
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