[BUG] AzureIdentityMysqlAuthenticationPlugin doesn't work with MysqlConnectionPoolDataSource

Describe the bug When running the AzureIdentityMysqlAuthenticationPlugin with MysqlConnectionPoolDataSource, there will be an exception says java.sql.SQLException: Access denied for user '[e-mail]@'170.170.170.170' (using password: NO)

Exception or Stack Trace

java.sql.SQLException: Access denied for user '[e-mail]@'170.170.170.170' (using password: NO)

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
	at com.mysql.cj.jdbc.ConnectionImpl.changeUser(ConnectionImpl.java:564)
	at com.mysql.cj.jdbc.ConnectionImpl.resetServerState(ConnectionImpl.java:1791)
	at com.mysql.cj.jdbc.MysqlPooledConnection.getConnection(MysqlPooledConnection.java:129)
	at com.mysql.cj.jdbc.MysqlPooledConnection.getConnection(MysqlPooledConnection.java:109)

To Reproduce Add the azure-identity-provider-jdbc-mysql and run the following code.

<dependency>
  <groupId>com.azure</groupId>
  <artifactId>azure-identity-providers-jdbc-mysql</artifactId>
  <version>1.0.0-beta.1</version>
</dependency>

Code Snippet

@Test
public void getServerTimeUmi() throws SQLException {
    MysqlConnectionPoolDataSource ds = new MysqlConnectionPoolDataSource();
    ds.setUrl(
        "jdbc:mysql://xxxx.mysql.database.azure.com/checklist?" +
            "useSSL=true&requireSSL=true" +
            "&defaultAuthenticationPlugin=com.azure.identity.providers.mysql.AzureIdentityMysqlAuthenticationPlugin" +
            "&authenticationPlugins=com.azure.identity.providers.mysql.AzureIdentityMysqlAuthenticationPlugin"
    );
    ds.setUser("[e-mail]");
    ds.setConnectTimeout(60000);

    PooledConnection connectionPooled = ds.getPooledConnection();
    if (connectionPooled != null) {
        Connection connection = connectionPooled.getConnection();
        if (connection != null) {
            System.out.println("Successfully connected.");
            System.out.println(connection.isValid(10));
            ResultSet result = connection.prepareStatement("SELECT now() as now").executeQuery();
            if (result.next()) {
                assertNotNull(result.getString("now"));
            }

        }
    }
}

Expected behavior No exception.

Screenshots N/A

Setup (please complete the following information):

• OS: [MacOS]
• IDE: [IntelliJ]
• Library/Libraries: [azure-identity-provider-jdbc-mysql]
• Java version: [8]
• App Server/Environment: [e.g. Tomcat, WildFly, Azure Function, Apache Spark, Databricks, IDE plugin or anything special]
• Frameworks: [e.g. Spring Boot, Micronaut, Quarkus, etc]

If you suspect a dependency version mismatch (e.g. you see NoClassDefFoundError, NoSuchMethodError or similar), please check out Troubleshoot dependency version conflict article first. If it doesn’t provide solution for the problem, please provide:

• verbose dependency tree (mvn dependency:tree -Dverbose)
• exception message, full stack trace, and any available logs

Additional context Add any other context about the problem here.

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• Bug Description Added
• Repro Steps Added
• Setup information Added

[backwind1233]

A workaround to address this issue is: you can try to remove the defaultAuthenticationPlugin configuration when using MysqlConnectionPoolDataSource:

one example of the jdbc url:

String url = "jdbc:mysql://{your-database-aacount}.mysql.database.azure.com:3306/{your-db}?sslMode=REQUIRED&serverTimezone=UTC" 
  +  "&authenticationPlugins=com.azure.identity.providers.mysql.AzureIdentityMysqlAuthenticationPlugin";

[saragluna]

Check this link for more details about the MySQL connection lifecycle: https://dev.mysql.com/doc/dev/mysql-server/latest/page_protocol_connection_lifecycle.html.