polish #2017

arthas-spring-boot-starter/src/main/java/com/alibaba/arthas/spring/ArthasConfiguration.java

@@ -7,6 +7,7 @@ import java.util.Map.Entry;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.ConfigurationProperties;