OnCommand Insight failed to validate license

Applies to

OnCommand Insight(OCI) 7.3.x

Issue

• Unable to validate the license in OCI server
• WebUI Error:

License is not valid. Failed to validate license: 
Unexpected error. Some/All feature may now be disabled. To resolve, acquire a new license key from NetApp.

• server.log:

Error: Failed to validate license: Unexpected error.
Warning: }
com.onaro.sanscreen.server.license.data.LicenseException: Failed to validateLicenseParts license rules
    at com.onaro.sanscreen.server.license.LicenseManager.validateLicenseRules(LicenseManager.java:331) ~[classes:?]

...

Caused by: java.sql.SQLException: javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:jboss/datasources/onaro_pool

•  %SANSCREEN_HOME%\program_data\elasticsearch\logs\oci-cluster.log:

2020-08-13 18:32:17,442 WARN  [elasticsearch[oci-client][transport_client_boss][T#2]] DefaultPromise (Netty4InternalESLogger.java:154) - An exception was thrown by org.elasticsearch.transport.netty4.Netty4Transport$$Lambda$1553/48522639.operationComplete()java.lang.ClassCastException: java.lang.OutOfMemoryError cannot be cast to java.lang.Exception