Java error "An illegal reflective access operation has occurred"

#1

Hello,

I tested the new Debian package of opendistroforelasticsearch version 0.8.0. The Elasticsearch node comes up after installation but I can see the following warnings in the output:
Apr 24 13:39:48 opendistro-test-all-fra11-1 systemd[1]: Started Elasticsearch.
Apr 24 13:39:48 opendistro-test-all-fra11-1 elasticsearch[10291]: OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely b
Apr 24 13:40:00 opendistro-test-all-fra11-1 elasticsearch[10291]: WARNING: An illegal reflective access operation has occurred
Apr 24 13:40:00 opendistro-test-all-fra11-1 elasticsearch[10291]: WARNING: Illegal reflective access by com.amazon.opendistro.elasticsearch.performanceanalyzer.collectors.Ma
Apr 24 13:40:00 opendistro-test-all-fra11-1 elasticsearch[10291]: WARNING: Please consider reporting this to the maintainers of com.amazon.opendistro.elasticsearch.performan
Apr 24 13:40:00 opendistro-test-all-fra11-1 elasticsearch[10291]: WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
Apr 24 13:40:00 opendistro-test-all-fra11-1 elasticsearch[10291]: WARNING: All illegal access operations will be denied in a future release

Java version:
openjdk version “11.0.2” 2019-01-15
OpenJDK Runtime Environment (build 11.0.2+9-Ubuntu-3ubuntu118.04.3)
OpenJDK 64-Bit Server VM (build 11.0.2+9-Ubuntu-3ubuntu118.04.3, mixed mode, sharing)

Any comments?

Greetings,

Martin