Related to: https://github.com/netty/netty/issues/9216

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>repro</groupId>
	<artifactId>repro</artifactId>
	<version>1.0-SNAPSHOT</version>

	<dependencies>
		<dependency>
			<groupId>io.r2dbc</groupId>
			<artifactId>r2dbc-mssql</artifactId>
			<version>0.8.0.M8</version>
		</dependency>
	</dependencies>

	<repositories>
		<repository>
			<id>spring-libs-milestone</id>
			<url>https://repo.spring.io/libs-milestone</url>
		</repository>
	</repositories>

</project>

Reproducer.java

import io.r2dbc.mssql.MssqlConnectionConfiguration;
import io.r2dbc.mssql.MssqlConnectionFactory;

public class Reproducer {

	public static void main(String[] args) {

		MssqlConnectionConfiguration config = MssqlConnectionConfiguration.builder()
				.host("abcbookstore.database.windows.net")
				.database("foo")
				.username("foo")
				.password("foo")
				.build();
		MssqlConnectionFactory cf = new MssqlConnectionFactory(config);

		cf.create().block();
	}
}