[#CONJ-767] permit using Aurora RO endpoint

Tried using ro-cluster end point and the driver is unable to connect. Put back the cluster end point, and it worked again:

Caused by: java.sql.SQLException: Communications link failure with primary. No active connection found for master.

	at org.mariadb.jdbc.internal.failover.AbstractMastersListener.throwFailoverMessage(AbstractMastersListener.java:563) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.internal.failover.impl.MastersSlavesListener.checkInitialConnection(MastersSlavesListener.java:350) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.internal.failover.impl.MastersSlavesListener.initializeConnection(MastersSlavesListener.java:179) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.internal.failover.FailoverProxy.<init>(FailoverProxy.java:120) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:607) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:150) ~[mariadb-java-client-2.6.0.jar:?]

	at org.mariadb.jdbc.MariaDbDataSource.getConnection(MariaDbDataSource.java:275) ~[mariadb-java-client-2.6.0.jar:?]

        at org.mariadb.jdbc.MariaDbDataSource.getXAConnection(MariaDbDataSource.java:453) ~[mariadb-java-client-2.6.0.jar:?]

	at com.atomikos.jdbc.AtomikosXAConnectionFactory.createPooledConnection(AtomikosXAConnectionFactory.java:43) ~[transactions-jdbc-4.0.6.jar:?]

	... 24 more

The connection string is something like this, with aurora mode:
jdbc:mariadb:aurora://<some.cluster-ro.region.rds.amazonaws.com>/db

[CONJ-767] permit using Aurora RO endpoint Created: 2020-03-06 Updated: 2020-06-01 Resolved: 2020-03-06
Status:	Closed
Project:	MariaDB Connector/J
Component/s:	aurora
Affects Version/s:	None
Fix Version/s:	2.6.0

[CONJ-767] permit using Aurora RO endpoint Created: 2020-03-06 Updated: 2020-06-01 Resolved: 2020-03-06