warnings...

[Ali Alhaidary]

NOTE: Picked up JDK_JAVA_OPTIONS: 
--add-opens=java.base/java.lang=ALL-UNNAMED 
--add-opens=java.base/java.io=ALL-UNNAMED 
--add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED

01-Oct-2020 04:23:56.669 WARNING [main] 
org.apache.tomcat.util.digester.SetPropertiesRule.begin Match 
[Server/Service/Connector/SSLHostConfig/Certificate] failed to set 
property [certificateVerification] to [false]
01-Oct-2020 04:23:56.675 WARNING [main] 
org.apache.tomcat.util.digester.SetPropertiesRule.begin Match 
[Server/Service/Connector/SSLHostConfig/Certificate] failed to set 
property [sslProtocol] to [TLS]
01-Oct-2020 04:26:10.897 WARNING [main] 
org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom 
Creation of SecureRandom instance for session ID generation using 
[SHA1PRNG] took [132,520] milliseconds.

WARN  10-01 04:26:23.398 o.a.o.c.r.KurentoHandler:177 
[pool-1-thread-1] - Fail to create Kurento client, will re-try in 
10000 ms

01-Oct-2020 04:26:24.485 WARNING [main] 
com.hazelcast.instance.impl.HazelcastInstanceFactory.null Hazelcast is 
starting in a Java modular environment (Java 9 and newer) but without 
proper access to required Java packages. Use additional Java arguments 
to provide Hazelcast access to Java internal API. The internal API 
access is used to get the best performance results. Arguments to be used:

WARN  10-01 04:26:25.380 c.h.c.CPSubsystem:67 
[main] - [10.19.0.5]:5701 [dev] [4.0.2] CP Subsystem is not 
enabled. CP data structures will operate in UNSAFE mode! Please note 
that UNSAFE mode will not provide strong consistency guarantees.

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by 
com.hazelcast.internal.networking.nio.SelectorOptimizer 
(file:/opt/rooms/webapps/openmeetings/WEB-INF/lib/hazelcast-4.0.2.jar) 
to field sun.nio.ch.SelectorImpl.selectedKeys
WARNING: Please consider reporting this to the maintainers of 
com.hazelcast.internal.networking.nio.SelectorOptimizer
WARNING: Use --illegal-access=warn to enable warnings of further illegal 
reflective access operations
WARNING: All illegal access operations will be denied in a future release

WARN  10-01 04:26:25.889 c.h.i.impl.Node:67 
[main] - [10.19.0.5]:5701 [dev] [4.0.2] No join method is 
enabled! Starting standalone.


Should I be concerned by the above warnings from catalina.log please ?