<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> не помог.<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-surefire-plugin</artifactId>
	<version>3.0.0-M5</version>
	<configuration>
		<argLine>-Dfile.encoding=UTF-8</argLine>
	</configuration>
</plugin>