Hello,

i'm migrating to wildfly 30.0.1 from wildfly 28.0.1. I have the following error during deploy:

Failed to define class org.wildfly.clustering.ee.cache.KeySerializer in Module "org.wildfly.clustering.ee.cache" version 30.0.1.Final from local module loader @4b770e40
    (finder: local module finder @78e16155 
        (roots: C:\path\wildfly-30.0.1.Final (1) \wildfly-30.0.1.Final\modules,
        C:\path\wildfly-30.0.1.Final (1)\wildfly-30.0.1.Final\modules\system\layers\base)
    ): java.lang.NoClassDefFoundError: Failed to link org/wildfly/clustering/ee/cache/KeySerializer 
        (Module "org.wildfly.clustering.ee.cache" version 30.0.1.Final from local module loader @4b770e40 
            (finder: local module finder @78e16155 
                (roots: C:\path\wildfly-30.0.1.Final (1)\wildfly-30.0.1.Final\modules,
                C:\path\wildfly-30.0.1.Final (1)\wildfly-30.0.1.Final\modules\system\layers\base
                )
            )
        ): org/wildfly/clustering/marshalling/spi/FunctionalSerializer

I found out the cause of this exception.

In modules\system\layers\base\org\wildfly\clustering\ee\cache\module.xml the dependency to org.wildfly.clustering.marshalling.spi is missing. 

I have the problem only in deploy phase because in clustering/ee/cache/pom.xml there is the dependency to org.wildfly.clustering.marshalling.spi