JDK8下maven使用maven-javadoc-plugin插件报错

<plugin>  
    <groupId>org.apache.maven.plugins</groupId>  
    <artifactId>maven-javadoc-plugin</artifactId>  
    <version>2.9</version>  
    <executions>  
        <execution>  
            <id>attach-javadocs</id>  
            <goals>  
                <goal>jar</goal>  
            </goals>  
            <configuration>  
                <additionalparam>-Xdoclint:none</additionalparam>  
            </configuration>  
        </execution>  
    </executions>  
</plugin>