[MAVEN] unmappable character for encoding EUC_KR

오류 메시지

unmappable character for encoding EUC_KR

해결 

pom.xml 에 다음 속성 추가

<project.build.sourceEncoding>utf-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>utf-8</project.reporting.outputEncoding>