1. 기존에 사용하던 pom.xml maven repository가 호환되지 않아 플러그인 설치가 되지 않는 문제가 발생

    <repository>
        <id>mvn2</id>
        <url><https://repo1.maven.org/maven2/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>egovframe</id>
        <url><http://www.egovframe.go.kr/maven/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>

1. URL 경로가 http → https 로 변경 되었다 플러그인의 경우에는 pluginRepositories를 따로 두어야 안전하다고 한다.

<repositories>
    <repository>
        <id>mvn2</id>
        <url><https://repo1.maven.org/maven2/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>egovframe</id>
        <url><https://maven.egovframe.go.kr/maven/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>central</id>
        <url><https://repo1.maven.org/maven2/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </pluginRepository>
    <pluginRepository>
        <id>egovframe-plugin</id>
        <url><https://maven.egovframe.go.kr/maven/></url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </pluginRepository>
</pluginRepositories>