http://openjpa.apache.org/builds/latest/docs/docbook/manual/ref_guide_pc_reverse.html
following command line argument -useGenericCollections/-gc <true/t | false/f>: Set to true to use generic collections on OneToMany and ManyToMany relations -- View this message in context: http://openjpa.208410.n2.nabble.com/Defaulting-ReverseMappingTool-to-use-java-util-Collection-instead-of-java-util-Set-tp7365642p7581487.html Sent from the OpenJPA Users mailing list archive at Nabble.com.