Update SystemUtils.java

Author: mercyblitz

microsphere-java-core/src/main/java/io/microsphere/util/SystemUtils.java

@@ -29,7 +29,7 @@
  * @see System
  * @since 1.0.0
  */
-public abstract class SystemUtils {
+public abstract class SystemUtils implements Utils {
 
     private static final Logger logger = getLogger(SystemUtils.class);