diff --git a/src/main/java/org/wltea/analyzer/dic/Dictionary.java b/src/main/java/org/wltea/analyzer/dic/Dictionary.java
index 09d3a966c79f6dc984d294ecb98c3c912e70ca82..1b8a0515a9ff6db58c0169f4b8fe547b5b7bd613 100644
--- a/src/main/java/org/wltea/analyzer/dic/Dictionary.java
+++ b/src/main/java/org/wltea/analyzer/dic/Dictionary.java
@@ -79,7 +79,7 @@ public class Dictionary {
 	 * 配置对象
 	 */
 	private Configuration configuration;
-    public static ESLogger logger=Loggers.getLogger("ik-analyzer");
+    public static final ESLogger logger=Loggers.getLogger("ik-analyzer");
     
     private static ScheduledExecutorService pool = Executors.newScheduledThreadPool(1);
     
diff --git a/src/main/java/org/wltea/analyzer/help/Sleep.java b/src/main/java/org/wltea/analyzer/help/Sleep.java
index 484a8efae210dfc613f0f430d6de75b8ab3b1ae6..06ac4602bd234c19fb4ebad0f666e37d38236d0c 100644
--- a/src/main/java/org/wltea/analyzer/help/Sleep.java
+++ b/src/main/java/org/wltea/analyzer/help/Sleep.java
@@ -5,7 +5,7 @@ import org.elasticsearch.common.logging.Loggers;
 
 public class Sleep {
 
-    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    public static final ESLogger logger= Loggers.getLogger("ik-analyzer");
     
 	public enum Type{MSEC,SEC,MIN,HOUR};
 	public static void sleep(Type type,int num){
@@ -15,13 +15,13 @@ public class Sleep {
 					Thread.sleep(num);
 					return;
 				case SEC:
-					Thread.sleep(num*1000);
+					Thread.sleep(num*1000L);
 					return;
 				case MIN:
-					Thread.sleep(num*60*1000);
+					Thread.sleep(num*60*1000L);
 					return;
 				case HOUR:
-					Thread.sleep(num*60*60*1000);
+					Thread.sleep(num*60*60*1000L);
 					return;
 				default:
                     logger.error("输入类型错误，应为MSEC,SEC,MIN,HOUR之一");
diff --git a/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java b/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
index 47f31870564873df5df5dc9d2c7994f9491bcb61..f79d834fd22d63df6df40b1cbc538c98362720ed 100644
--- a/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
+++ b/src/main/java/org/wltea/analyzer/query/IKQueryExpressionParser.java
@@ -47,7 +47,7 @@ import java.util.Stack;
  */
 public class IKQueryExpressionParser {
 
-    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    public static final ESLogger logger= Loggers.getLogger("ik-analyzer");
     
 	//public static final String LUCENE_SPECIAL_CHAR = "&&||-()':={}[],";
 	
diff --git a/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java b/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
index 72d9df433c8d5eb617e1c0381e633a37bbc4f914..d9e23e8dec1e7ada3803e7f1f1aeb292e2854f32 100644
--- a/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
+++ b/src/main/java/org/wltea/analyzer/sample/IKAnalzyerDemo.java
@@ -44,7 +44,7 @@ import org.wltea.analyzer.lucene.IKAnalyzer;
  */
 public class IKAnalzyerDemo {
 
-    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    public static final ESLogger logger= Loggers.getLogger("ik-analyzer");
     
 	public static void main(String[] args){
 		//构建IK分词器，使用smart分词模式
diff --git a/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java b/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
index cf863f544c7d04bf14e5a06a85006aeda1184e54..b4a5f602aeb85b91b46efaa5a9f3a8c17955aa88 100644
--- a/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
+++ b/src/main/java/org/wltea/analyzer/sample/LuceneIndexAndSearchDemo.java
@@ -64,7 +64,7 @@ import org.wltea.analyzer.lucene.IKAnalyzer;
  */
 public class LuceneIndexAndSearchDemo {
 
-    public static ESLogger logger= Loggers.getLogger("ik-analyzer");
+    public static final ESLogger logger= Loggers.getLogger("ik-analyzer");
 	
 	/**
 	 * 模拟：