quarkus-smallrye-reactive-messaging-kafka / quarkus-kafka-client + SSL is using too much RAM memory in Native mode

Scenario

Reproducer

git clone git@github.com:quarkus-qe/quarkus-test-suite.git 

Run Scenario

mvn clean verify -Dnative -Dit.test=InfinispanKafkaSslIT -Dmaven.failsafe.debug=true -Dmaven.surefire.debug=true -Dall-modules -pl messaging/infinispan-grpc-kafka 

Memory used: 10Gb +

This sceanrio is usgin a quarkus-kafka-client producer/consunmer with SSL

Sasl and a regular Kafka client work as expected.

Expected behavior

Same memory usage as JVM mode (more or less)

Actual behavior

more than 10Gb of memory usage

Output of java -version

openjdk 11.0.11 2021-04-20 OpenJDK Runtime Environment AdoptOpenJDK-11.0.11+9 (build 11.0.11+9) OpenJDK 64-Bit Server VM AdoptOpenJDK-11.0.11+9 (build 11.0.11+9, mixed mode)

The following mandrel image is used to build the binary app:

quay.io/quarkus/ubi-quarkus-mandrel:21.3-java11