Warn logs during server startup

[piraveena]

Describe the issue:

We could observe below warn logs during server startup in java 11

 INFO {org.wso2.carbon.identity.hash.provider.pbkdf2.internal.PBKDF2HashServiceComponent} - PBKDF2 bundle activated successfully.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.nustaq.serialization.FSTClazzInfo (file:<is_path>/repository/components/default/configuration/org.eclipse.osgi/456/0/.cp/fst-2.56.jar) to field java.math.BigDecimal.intVal
WARNING: Please consider reporting this to the maintainers of org.nustaq.serialization.FSTClazzInfo
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 {javax.mail} - expected resource not found: /META-INF/javamail.default.address.map

WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [validateSPInitSSORequest]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [validateIdPInitSSORequest]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [validateIdPInitSSORequest]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [doSingleLogout]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [doSingleLogout]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [addRemoteServerConfig]
WARN {org.apache.axis2.description.java2wsdl.DefaultSchemaGenerator} - We don't support method overloading. Ignoring [resetRemoteServerConfig]

How to reproduce:

Expected behavior:

Environment information (Please complete the following information; remove any unnecessary fields) :

• Product Version: [e.g., IS 5.10.0, IS 5.9.0]
• OS: [e.g., Windows, Linux, Mac]
• Database: [e.g., MySQL, H2]
• Userstore: [e.g., LDAP, JDBC]

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Optional Fields

Related issues:

Suggested labels:

[piraveena]

These are not reproducible in IS product