Java app crash OutOfMemory: Metaspace on OpenShift

Issue

• Using image openjdk18-openshift:1.2-7, trying to override JVM options for -XX:MaxMetaspaceSize=<size>m. When setting this parameter in JAVA_OPTS_APPEND using -XX:MaxMetaspaceSize=300m, Openshift overrides this value with -XX:MaxMetaspaceSize=100m.
  JVM startup log with final flags for metaspace below...

Starting the Java application using /opt/run-java/run-java.sh ...
exec java -Dspring.profiles.active=dev -Dserver.port=8080 -Djavax.net.ssl.trustStorePassword=changeit -Djavax.net.ssl.trustStore=/etc/alternatives/java_sdk/lib/security/cacerts -Xms1000M -Xmx1000M -XX:+PrintFlagsFinal -Dappdynamics.agent.reuse.nodeName=true -Dappdynamics.agent.reuse.nodeName.prefix=example -Dappdynamics.jvm.shutdown.mark.node.as.historical=true -javaagent:/opt/appdynamics/javaagent.jar -XX:+UseParallelGC -XX:MinHeapFreeRatio=20 -XX:MaxHeapFreeRatio=40 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -XX:MaxMetaspaceSize=300m -XX:+UseParallelGC -XX:MinHeapFreeRatio=20 -XX:MaxHeapFreeRatio=40 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -XX:MaxMetaspaceSize=100m -XX:ParallelGCThreads=4 -Djava.util.concurrent.ForkJoinPool.common.parallelism=4 -XX:CICompilerCount=2 -XX:+ExitOnOutOfMemoryError -cp . -jar /deployments/example.jar
[Global flags]
   ...
   ...
    uintx MaxMetaspaceExpansion                     = 5451776                             {product}
    uintx MaxMetaspaceFreeRatio                     = 70                                  {product}
    uintx MaxMetaspaceSize                         := 104857600                           {product}