Transaction multiGet convert to list-based #9522
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Transaction multiGet convert to list-based.
RocksDB Java (non-transactional) has multiGetAsList() methods to expose multiGet(). These return a list of results. These methods replaced multiGet() methods returning an array of results, which were deprecated in Rocks 6 and are being removed in Rocks 7.
The transactional API still presents multiGet() methods returning arrays, so in Rocks 7 we replace these with multiGetAsList()methods and deprecate the multiGet() methods.
This does not require any changes to the supporting JNI/C++ code, only to the wrappers which present the Java API.