Description of problem:

when creating a module for a custom loghandler, everything works fine if the module is package in default main slot, e.g.
my/loghandler/main

    module.xml
    my.jar

<custom-handler name="4H" class="my.handler.Periodic4HFileHandler" module="my.loghandler">

Nevertheless I want to version the module, therefore package my module with a given slot:
my/loghandler/1.0

    module.xml
    my.jar

<custom-handler name="4H" class="my.handler.Periodic4HFileHandler" module="my.loghandler:1.0">

It fails with exception:
=========
ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) JBAS014612: Operation ("add") failed - address: ([

    ("subsystem" => "logging"),

    ("custom-handler" => "4H")

]): java.lang.IllegalArgumentException: JBAS011532: Failed to load module 'my.loghandler:1.0' for handler '4H'

	at org.jboss.as.logging.HandlerOperations$HandlerAddOperationStepHandler.createHandlerConfiguration(HandlerOperations.java:320) [jboss-as-logging-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]

	at org.jboss.as.logging.HandlerOperations$HandlerAddOperationStepHandler.performRuntime(HandlerOperations.java:255) [jboss-as-logging-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
=========

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