FeatureMan2

Thanks for your insights. I think I'll use your fallback method with `c`/`rbind`.

I tried the `c` approach to some initial success but then ultimately got stuck again. I split the large array into chunks then reassembled it in R with `c`. But...

The code is long and unfortunately I'm not able to share it. It essentially fails at this point https://github.com/s-u/REngine/blob/ba09e3bd0fc5f2f99296451f96c7eb2422621226/Rserve/RConnection.java#L286 (this is with the old version REngine `0.9.2` under R v3.6,...

Our problem was solved by splitting the datasets Java-> R using the suggested `c(a,b)` trick, then also splitting the return values R -> Java (as these were large too). This...