[SPARK-4819] Remove Guava's "Optional" from public API#10513
Closed
srowen wants to merge 3 commits intoapache:masterfrom
Closed
[SPARK-4819] Remove Guava's "Optional" from public API#10513srowen wants to merge 3 commits intoapache:masterfrom
srowen wants to merge 3 commits intoapache:masterfrom