diff --git a/src/main/java/com/alibaba/druid/proxy/DruidDriver.java b/src/main/java/com/alibaba/druid/proxy/DruidDriver.java
index ed8e24fdd1..14e0fca618 100644
--- a/src/main/java/com/alibaba/druid/proxy/DruidDriver.java
+++ b/src/main/java/com/alibaba/druid/proxy/DruidDriver.java
@@ -144,7 +144,7 @@ public class DruidDriver implements Driver, DruidDriverMBean {
     }
 
     /**
-     * 参数定义�?com.alibaba.druid.log.LogFilter=filter com.alibaba.druid.log.LogFilter.p1=prop-value
+     * 参数定义： com.alibaba.druid.log.LogFilter=filter com.alibaba.druid.log.LogFilter.p1=prop-value
      * com.alibaba.druid.log.LogFilter.p2=prop-value
      * 
      * @param url
diff --git a/src/main/java/com/alibaba/druid/stat/DruidStatManagerFacade.java b/src/main/java/com/alibaba/druid/stat/DruidStatManagerFacade.java
index f176cc98f8..0ced8fa0bd 100644
--- a/src/main/java/com/alibaba/druid/stat/DruidStatManagerFacade.java
+++ b/src/main/java/com/alibaba/druid/stat/DruidStatManagerFacade.java
@@ -33,9 +33,12 @@ import com.alibaba.druid.util.JdbcSqlStatUtils;
 import com.alibaba.druid.util.StringUtils;
 
 /**
- * 监控相关的对外数据暴�? * 
+ * 监控相关的对外数据暴露
+ * 
  * <pre>
- * 1. 为了支持jndi数据源本类内部调用druid相关对象均需要反射调�?返回值也应该是Object,List<Object>,Map<String,Object>等无关于druid的类�? * 2. 对外暴露的public方法都应该先调用init()，应该有更好的方式，暂时没想�? * </pre>
+ * 1. 为了支持jndi数据源本类内部调用druid相关对象均需要反射调用,返回值也应该是Object,List<Object>,Map<String,Object>等无关于druid的类型
+ * 2. 对外暴露的public方法都应该先调用init()，应该有更好的方式，暂时没想到
+ * </pre>
  * 
  * @author sandzhang<sandzhangtoo@gmail.com>
  */
diff --git a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
index 33c1a65028..5dcdfaf0aa 100644
--- a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
+++ b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
@@ -394,7 +394,7 @@ public final class JdbcSqlStat implements JdbcSqlStatMBean {
             long current = executeSpanNanoMax.get();
             if (current < nanoSpan) {
                 if (executeSpanNanoMax.compareAndSet(current, nanoSpan)) {
-                    // 可能不准确，但是绝大多数情况下都会正确，性能换取�?���?
+                	// 可能不准确，但是绝大多数情况下都会正确，性能换取一致性
                     executeNanoSpanMaxOccurTime = System.currentTimeMillis();
 
                     break;
diff --git a/src/main/java/com/alibaba/druid/util/ServletPathMatcher.java b/src/main/java/com/alibaba/druid/util/ServletPathMatcher.java
index 09c9f77200..11a5885dd6 100644
--- a/src/main/java/com/alibaba/druid/util/ServletPathMatcher.java
+++ b/src/main/java/com/alibaba/druid/util/ServletPathMatcher.java
@@ -19,7 +19,7 @@ public class ServletPathMatcher implements PatternMatcher {
 
     /**
      * <p>
-     * three type: endsWithMatch(eg. /xxx*=/xxx/xyz), startsWithMatch(eg. *.xxx=abc.xxx), equals(eg. /xxx=/xxx)�?
+     * three type: endsWithMatch(eg. /xxx*=/xxx/xyz), startsWithMatch(eg. *.xxx=abc.xxx), equals(eg. /xxx=/xxx).
      * </p>
      * <b>Notice</b>: *xxx* will match *xxxyyyy. endsWithMatch first.
      */