Hi Stéphane Appercel,
Sorry for my late response. We added an option “Reverse interface getter/setter as association” at Tools > Options > Code Synchronization (see image). It’s enabled by default, please disable it when run Java round-trip engineering so you won’t have the interface getter/setter reversed as association.
Please be reminded that this option is available in latest patch of VP Suite 4.2 (build 20100215g or later), you need to run “VP Suite Update” for getting updated to latest patch. Details about updating to latest patch are available at:
Should you have any inquiry, please feel free to ask.