Improvement of property Dictionary_Obsolete

[emopers]

Hi, considering the property Dictionary_Obsolete. We understand that as this property is marked as obsolete and not recommended for future implementation, however, this is an abstract class with a sole implementation of HashTable in JDK. HashTable is in no way depreciated by Java API and still widely used by developers for various considerations (such as its feature of synchronization).
We have seen lots of violations of this property during our monitoring. One improvement we can think of is to instead directly alarm on the usage of Dictionary, this property can be formed to monitor the implementation of Dictionary that's not HashTable.