Major behavioral difference between java array-backed homogen table and native-heap backed homogen table.

[cnuernber]

Describe the bug

The bytebuffer homogen table does not write to the buf argument to getBlockOfRows while the array buffer implementation does. Furthermore the bytebuffer homogen table forces the row-block to be allocated again meaning there needs to be another 2x dataset size memory available.

• bytebuffer homogen table getBlockOfRows
• array homogen table getBlockOfRows

[PivovarA]

Hi @cnuernber Thanks for pointing out this issue. We'll check it and come back with an answer as soon as possible

[napetrov]

Java support is deprecated in oneDAL and will be moved to https://github.com/oap-project/oap-mllib/pull/336