Add support of java.util.Properties type in PropertyInjector to allow to set OracleXADatasource.connectionProperties attribute as JDBC property

Hi,

I would like to ask if it would be possible to add a small enhancement to the Agroal pool implementation that we need to set some Oracle JDBC driver specific attributes, that are set using the generic OracleXADatasource.setConnectionProperties(java.util.Properties) method.

The thing is that PropertyInjector supports type conversions to primitive property types but this method expects a java.util.Properties instance.

Would it be a way to support a semicolon separated String value like

String connectionProperties = "oracle.net.authentication_services=(KERBEROS5);oracle.net.kerberos5_mutual_authentication=true;oracle.net.kerberos5_cc_name=test1";

to be converted to a java.util.Properties object?

This way I could pass that String to the ConnectionFactoryConfigurationSupplier using the jdbcProperty method:

AgroalConnectionFactoryConfigurationSupplier supplier;
//...
supplier.jdbcProperty("connectionProperties", connectionProperties);

I already implemented that approach on my fork and that works for us:
https://github.com/cbue/agroal/commit/58209669b9db9b181b2feb99105b16b5bd06614f

Other implementations like in OpenLiberty support the same semicolon separated approach to set Oracle specific connectionProperties.

Would it be possible to create a pull request for that change? Is there a chance to get it into your code base?

Thank you!

Regards
Christian