Minor Polish

client/src/main/java/org/apache/rocketmq/client/log/ClientLogger.java

@@ -98,7 +98,6 @@ public class ClientLogger {
                         initialize.invoke(joranConfigurator, "log4j2", logConfigFilePath);
                     }
                 }
-                //logClass = classType;
             } catch (Exception e) {
                 System.err.println(e);
             }

client/src/test/java/org/apache/rocketmq/client/log/ClientLoggerTest.java

@@ -43,9 +43,10 @@ public class ClientLoggerTest {
 
     // FIXME: Workaround for concrete implementation for slf4j, is there any better solution for all slf4j implementations in one class ? 2017/8/1
     @Test
-    public void testLog4j() throws Exception {
+    public void testLog4j2() throws Exception {
         Logger logger = ClientLogger.getLog();
 
+        System.out.println(logger);
         assertEquals("org.apache.logging.slf4j.Log4jLogger", logger.getClass().getName());
     }
 }