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Product Version = NetBeans IDE Dev (Build 201205160400) Operating System = Windows 7 version 6.1 running on x86 Java; VM; Vendor = 1.7.0_04 Runtime = Java HotSpot(TM) Client VM 23.0-b21 During creation the attributes mapped by a collection (or list based on wizard) are checked for null values and populated (with an empty collection) on the create method. On the edit method this check is not done. In some cases it should be valid to clear those lists and there's nothing preventing a null value to be set.
no idea where this belongs to
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue. Thanks for your cooperation, NetBeans IDE 8.2 Release Boss