NVIDIA / NVIDIA/cudf

[FEA] Java: Table.mixedInnerJoinGatherMaps variant accepting a pre-built HashJoin

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feature request Java
Dominant language
C++
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Description

**Is your feature request related to a problem? Please describe.**

`Table.innerJoinGatherMaps(HashJoin)` lets a caller build the right-side hash table once and probe many times. `Table.mixedInnerJoinGatherMaps` does not accept a pre-built hash table and builds it on every call. This wastes time and memory.

**Describe the solution you'd like**

`Table.mixedInnerJoinGatherMaps` and `Table.mixedLeftJoinGatherMaps` overloads that take `HashJoin`

**Describe alternatives you've considered**

None yet. Any recommendations?

**Additional context**

- https://github.com/rapidsai/cudf/issues/22124

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