diff --git a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/autoconfigure/SynchronizerAutoConfiguration.java b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/autoconfigure/SynchronizerAutoConfiguration.java
index 60ed5634..f7c993e4 100644
--- a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/autoconfigure/SynchronizerAutoConfiguration.java
+++ b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/autoconfigure/SynchronizerAutoConfiguration.java
@@ -63,7 +63,7 @@ public class SynchronizerAutoConfiguration   implements InitializingBean {
 		    	 if(synchronizer.getScheduler()!=null 
 		    	         && !synchronizer.getScheduler().equals("")
 		    	         && CronExpression.isValidExpression(synchronizer.getScheduler())) {
-		    		 _logger.debug("synchronizer details : " + synchronizer);
+		    		 _logger.debug("synchronizer details : {}" , synchronizer);
 		    		 buildJob(scheduler,synchronizer);
 		    	 }
 		     }
@@ -81,9 +81,9 @@ public class SynchronizerAutoConfiguration   implements InitializingBean {
 		
 		JobDataMap jobDataMap = new JobDataMap();
 		jobDataMap.put("synchronizer", synchronizer);
-		_logger.debug("synchronizer : " + synchronizer.getName()+"("+synchronizer.getId()+"_"+synchronizer.getSourceType()+")");
-		_logger.debug("synchronizer service : " + synchronizer.getService());
-		_logger.debug("synchronizer Scheduler : " + synchronizer.getScheduler());
+		_logger.debug("synchronizer : {}" , synchronizer.getName()+"("+synchronizer.getId()+"_"+synchronizer.getSourceType()+")");
+		_logger.debug("synchronizer service : {}", synchronizer.getService());
+		_logger.debug("synchronizer Scheduler : {} " ,synchronizer.getScheduler());
 		CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(synchronizer.getScheduler());
 		CronTrigger cronTrigger = 
 		        TriggerBuilder.newTrigger()
@@ -95,7 +95,7 @@ public class SynchronizerAutoConfiguration   implements InitializingBean {
 	}
 
 	public List<Synchronizers> querySynchronizers(JdbcTemplate  jdbcTemplate) {
-		List<Synchronizers> synchronizerList = jdbcTemplate.query(SYNCHRONIZERS_SELECT_STATEMENT, new RowMapper<Synchronizers>() {
+		return  jdbcTemplate.query(SYNCHRONIZERS_SELECT_STATEMENT, new RowMapper<Synchronizers>() {
         	public Synchronizers mapRow(ResultSet rs, int rowNum) throws SQLException {
 	        	 Synchronizers synchronizer = new Synchronizers();
 	        	 synchronizer.setId(         rs.getString("id"));
@@ -125,8 +125,6 @@ public class SynchronizerAutoConfiguration   implements InitializingBean {
 	             return synchronizer;
         	}
 		});
-	 
-		return synchronizerList;
 	}
 	
 	@Override
diff --git a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/AbstractSynchronizerService.java b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/AbstractSynchronizerService.java
index 33dcbe7e..c3662b39 100644
--- a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/AbstractSynchronizerService.java
+++ b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/AbstractSynchronizerService.java
@@ -74,11 +74,11 @@ public abstract class AbstractSynchronizerService {
            }
         }
         
-        orgsNamePathMap =new HashMap<String,Organizations>();
+        orgsNamePathMap =new HashMap<>();
         orgsNamePathMap.put(rootOrganization.getNamePath(), rootOrganization);
         push(orgsNamePathMap,orgsList,rootOrganization);
         
-        _logger.trace("orgsNamePathMap " + orgsNamePathMap);
+        _logger.trace("orgsNamePathMap {}" , orgsNamePathMap);
         return orgsNamePathMap;
     }
     
diff --git a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/SynchronizerJob.java b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/SynchronizerJob.java
index 1dfa02df..16b6dd4e 100644
--- a/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/SynchronizerJob.java
+++ b/maxkey-synchronizers/maxkey-synchronizer/src/main/java/org/dromara/maxkey/synchronizer/SynchronizerJob.java
@@ -28,7 +28,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class SynchronizerJob  implements Job {
-	final static Logger _logger = LoggerFactory.getLogger(SynchronizerJob.class);
+	static final Logger logger = LoggerFactory.getLogger(SynchronizerJob.class);
     
 	SynchronizersService synchronizersService;
     
@@ -47,27 +47,27 @@ public class SynchronizerJob  implements Job {
     		//init
     		jobStatus.put(synchronizer.getId(),  JOBSTATUS.STOP) ;
     	}else if(jobStatus.get(synchronizer.getId())== JOBSTATUS.RUNNING) {
-            _logger.info("SynchronizerJob is in running . " );
+            logger.info("SynchronizerJob is in running . " );
             return;
         }
         
-        _logger.debug("SynchronizerJob is running ... " );
+        logger.debug("SynchronizerJob is running ... " );
         jobStatus.put(synchronizer.getId(),  JOBSTATUS.RUNNING) ;
         try {
         	
-        	_logger.debug("synchronizer : " + synchronizer.getName()+"("+synchronizer.getId()+"_"+synchronizer.getSourceType()+")");
-    		_logger.debug("synchronizer service : " + synchronizer.getService());
-    		_logger.debug("synchronizer Scheduler : " + synchronizer.getScheduler());
+        	logger.debug("synchronizer : {}" , synchronizer.getName()+"("+synchronizer.getId()+"_"+synchronizer.getSourceType()+")");
+    		logger.debug("synchronizer service : {}" , synchronizer.getService());
+    		logger.debug("synchronizer Scheduler : {}" , synchronizer.getScheduler());
         	ISynchronizerService service = (ISynchronizerService)WebContext.getBean(synchronizer.getService());
         	service.setSynchronizer(synchronizer);
         	service.sync();
         	jobStatus.put(synchronizer.getId(),   JOBSTATUS.FINISHED);
-            _logger.debug("SynchronizerJob is success  " );
+            logger.debug("SynchronizerJob is success  " );
         }catch(Exception e) {
-            _logger.error("Exception " ,e);
+            logger.error("Exception " ,e);
             jobStatus.put(synchronizer.getId(),  JOBSTATUS.STOP);
         }
-        _logger.debug("SynchronizerJob is finished . " );
+        logger.debug("SynchronizerJob is finished . " );
     }
     
     
@@ -78,7 +78,7 @@ public class SynchronizerJob  implements Job {
     	}
     	//read synchronizer by id from database
     	Synchronizers synchronizer = synchronizersService.get(jobSynchronizer.getId());
-    	_logger.trace("synchronizer " + synchronizer);
+    	logger.trace("synchronizer {}" , synchronizer);
     	return synchronizer;
     }
     
diff --git a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/DynamicRolesListenerAdapter.java b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/DynamicRolesListenerAdapter.java
index 63c95a13..59a1cd61 100644
--- a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/DynamicRolesListenerAdapter.java
+++ b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/DynamicRolesListenerAdapter.java
@@ -30,7 +30,7 @@ public class DynamicRolesListenerAdapter extends ListenerAdapter  implements Job
     
     private static final long serialVersionUID = 8831626240807856084L;
 
-    private static  RolesService rolesService = null;
+    private  RolesService rolesService = null;
 
     @Override
     public void execute(JobExecutionContext context){
diff --git a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerAdapter.java b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerAdapter.java
index 893a2fae..a2796eaf 100644
--- a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerAdapter.java
+++ b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerAdapter.java
@@ -33,7 +33,7 @@ public class ListenerAdapter {
 	
 	JobExecutionContext context;
 	
-    public final static class JOBSTATUS{
+    public static final  class JOBSTATUS{
         public static int STOP 		= 0;
         public static int RUNNING 	= 1;
         public static int ERROR 	= 2;
diff --git a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerParameter.java b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerParameter.java
index fe82ec2d..87328b52 100644
--- a/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerParameter.java
+++ b/maxkey-webs/maxkey-web-mgt/src/main/java/org/dromara/maxkey/listener/ListenerParameter.java
@@ -20,6 +20,7 @@ package org.dromara.maxkey.listener;
 import org.quartz.JobDataMap;
 
 public class ListenerParameter {
+	
 	JobDataMap parameters ;
 
 	public ListenerParameter() {