Intellij IDEA 出现“Usage of API documented as @since 1.6+”的解决办法

File > Project Structure > Project Settings > Modules > your Module name > Sources > Language Level > choose the one which you need.

或者在pom 添加

<build>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>3.6.0</version>                <configuration>                    <source>1.8</source>                    <target>1.8</target>                </configuration>            </plugin>        </plugins>    </build>