Since openjdk version 1.8.0_252 we are unable to launch an H2O cluster on EMR due to the following error (happens when we call h2o_context(sc) from R):
This works fine on one of our older clusters, where openjdk version is 1.8.0_242.
H2O build version: 188.8.131.52 (yu)
Sparkling Water version: 184.108.40.206-1-2.4
Spark build version: 2.4.4
Scala version: 2.11