results of list*Messages methods of Queues and Topics have wrong meta type definition

The MessageListMapper used to define the meta types on list*Messages() methods for Queues and Topics advertises that the resulting type will be:

CollectionMetaType[ImmutableCompositeMetaType["JMSMessageID" = SimpleMetaType.STRING, "JMSCorrelationID" = SimpleMetaType.STRING, "JMSTimestamp" = SimpleMetaType.LONG]]

however the meta type of the actual meta values obtained using collectionValue.getElements() is advertised as:

MapCompositeValue[ImmutableCompositeMetaType["JMSMessageID" = SimpleMetaType.STRING, "JMSCorrelationID" = SimpleMetaType.STRING, "JMSTimestamp" = SimpleMetaType.LONG]]

This discrepancy is affecting the admin console, Jopr and JON because the meta values values have different type than the advertised meta type.