boolean isEmpty ( Map < String , List < List < RepositoryResource > > > installResources ) { if ( installResources == null ) return true ; for ( List < List < RepositoryResource > > targetList : installResources . values ( ) ) { for ( List < RepositoryResource > mrList : targetList ) { if ( ! mrList . isEmpty ( ) ) return false ; } } return true ; }
Checks if installResources map contains any resources