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I'm trying to migrate my project from Grails 2.4.4 to 3.1.8, but I see many errors when I build my project using gradle.
Can't have an abstract method in a non-abstract class. The class 'XXX' must be declared abstract or the method 'java.util.Map org_grails_datastore_mapping_dirty_checking_DirtyCheckable__$changedProperties$get()' must be implemented.
It's because I use @Delegate annotation in my Command on domain object. When I delete @Delegate annotation, application builded without errors, but code doesn't work (because lack of @Delegate).