settings.xml

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    <servers>
        <server>
            <id>ossrh</id>
            <username>polyfillservice</username>
            <password>{Ut1ipm/G+EsHapowus/U7YSq9tLIf5q5VNXjy8xtVBQ=}</password>
        </server>
    </servers>

    <profiles>
        <profile>
            <id>gpg</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <gpg.executable>gpg2</gpg.executable>
                <gpg.passphrase>Shaocong created this key. Will expire in 2019-06-26. {MTh/1yE4zrMH/rKmrQ4apNUiwCMRdf9KnyRO+EQRVcqpRyg5LS9NpcvORC858G3c}</gpg.passphrase>
            </properties>
        </profile>
    </profiles>
</settings>