diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 5ecff50f8f..52e8fbf783 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -931,9 +931,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             if (lastConnectionConnectError != null) {
                 map.put("ConnectionConnectErrorLastTime", stat.getConnectionStat().getErrorLastTime());
                 map.put("ConnectionConnectErrorLastMessage", lastConnectionConnectError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastConnectionConnectError.printStackTrace(new PrintWriter(buf));
-                map.put("ConnectionConnectErrorLastStackTrace", buf.toString());
+                map.put("ConnectionConnectErrorLastStackTrace", JdbcUtils.getStackTrace(lastConnectionConnectError));
             } else {
                 map.put("ConnectionConnectErrorLastTime", null);
                 map.put("ConnectionConnectErrorLastMessage", null);
@@ -954,9 +952,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
                 map.put("StatementLastErrorTime", stat.getStatementStat().getLastErrorTime());
                 map.put("StatementLastErrorMessage", lastStatementError.getMessage());
 
-                StringWriter buf = new StringWriter();
-                lastStatementError.printStackTrace(new PrintWriter(buf));
-                map.put("StatementLastErrorStackTrace", buf.toString());
+                map.put("StatementLastErrorStackTrace", JdbcUtils.getStackTrace(lastStatementError));
             } else {
                 map.put("StatementLastErrorTime", null);
                 map.put("StatementLastErrorMessage", null);
@@ -980,9 +976,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             Throwable lastResultSetError = stat.getResultSetStat().getLastError();
             if (lastResultSetError != null) {
                 map.put("ResultSetLastErrorMessage", lastResultSetError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastResultSetError.printStackTrace(new PrintWriter(buf));
-                map.put("ResultSetLastErrorStackTrace", buf.toString());
+                map.put("ResultSetLastErrorStackTrace", JdbcUtils.getStackTrace(lastResultSetError));
             } else {
                 map.put("ResultSetLastErrorMessage", null);
                 map.put("ResultSetLastErrorStackTrace", null);
@@ -992,9 +986,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             Throwable lastConnectionError = stat.getConnectionStat().getErrorLast();
             if (lastConnectionError != null) {
                 map.put("ConnectionErrorLastMessage", lastConnectionError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastConnectionError.printStackTrace(new PrintWriter(buf));
-                map.put("ConnectionErrorLastStackTrace", buf.toString());
+                map.put("ConnectionErrorLastStackTrace", JdbcUtils.getStackTrace(lastConnectionError));
             } else {
                 map.put("ConnectionErrorLastMessage", null);
                 map.put("ConnectionErrorLastStackTrace", null);
diff --git a/src/main/java/com/alibaba/druid/proxy/jdbc/DataSourceProxyImpl.java b/src/main/java/com/alibaba/druid/proxy/jdbc/DataSourceProxyImpl.java
index c95bed448c..a84114e94d 100644
--- a/src/main/java/com/alibaba/druid/proxy/jdbc/DataSourceProxyImpl.java
+++ b/src/main/java/com/alibaba/druid/proxy/jdbc/DataSourceProxyImpl.java
@@ -219,9 +219,7 @@ public class DataSourceProxyImpl implements DataSourceProxy, DataSourceProxyImpl
             if (lastConnectionConnectError != null) {
                 map.put("ConnectionConnectErrorLastTime", stat.getConnectionStat().getErrorLastTime());
                 map.put("ConnectionConnectErrorLastMessage", lastConnectionConnectError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastConnectionConnectError.printStackTrace(new PrintWriter(buf));
-                map.put("ConnectionConnectErrorLastStackTrace", buf.toString());
+                map.put("ConnectionConnectErrorLastStackTrace", JdbcUtils.getStackTrace(lastConnectionConnectError));
             } else {
                 map.put("ConnectionConnectErrorLastTime", null);
                 map.put("ConnectionConnectErrorLastMessage", null);
@@ -242,9 +240,7 @@ public class DataSourceProxyImpl implements DataSourceProxy, DataSourceProxyImpl
                 map.put("StatementLastErrorTime", stat.getStatementStat().getLastErrorTime());
                 map.put("StatementLastErrorMessage", lastStatementError.getMessage());
 
-                StringWriter buf = new StringWriter();
-                lastStatementError.printStackTrace(new PrintWriter(buf));
-                map.put("StatementLastErrorStackTrace", buf.toString());
+                map.put("StatementLastErrorStackTrace", JdbcUtils.getStackTrace(lastStatementError));
             } else {
                 map.put("StatementLastErrorTime", null);
                 map.put("StatementLastErrorMessage", null);
@@ -268,9 +264,7 @@ public class DataSourceProxyImpl implements DataSourceProxy, DataSourceProxyImpl
             Throwable lastResultSetError = stat.getResultSetStat().getLastError();
             if (lastResultSetError != null) {
                 map.put("ResultSetLastErrorMessage", lastResultSetError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastResultSetError.printStackTrace(new PrintWriter(buf));
-                map.put("ResultSetLastErrorStackTrace", buf.toString());
+                map.put("ResultSetLastErrorStackTrace", JdbcUtils.getStackTrace(lastResultSetError));
             } else {
                 map.put("ResultSetLastErrorMessage", null);
                 map.put("ResultSetLastErrorStackTrace", null);
@@ -280,9 +274,7 @@ public class DataSourceProxyImpl implements DataSourceProxy, DataSourceProxyImpl
             Throwable lastConnectionError = stat.getConnectionStat().getErrorLast();
             if (lastConnectionError != null) {
                 map.put("ConnectionErrorLastMessage", lastConnectionError.getMessage());
-                StringWriter buf = new StringWriter();
-                lastConnectionError.printStackTrace(new PrintWriter(buf));
-                map.put("ConnectionErrorLastStackTrace", buf.toString());
+                map.put("ConnectionErrorLastStackTrace", JdbcUtils.getStackTrace(lastConnectionError));
             } else {
                 map.put("ConnectionErrorLastMessage", null);
                 map.put("ConnectionErrorLastStackTrace", null);
diff --git a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
index 79e892bc6f..1e6eda717b 100644
--- a/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
+++ b/src/main/java/com/alibaba/druid/stat/JdbcSqlStat.java
@@ -29,6 +29,7 @@ import javax.management.openmbean.OpenType;
 import javax.management.openmbean.SimpleType;
 
 import com.alibaba.druid.util.JMXUtils;
+import com.alibaba.druid.util.JdbcUtils;
 
 /**
  * @author wenshao<szujobs@hotmail.com>
@@ -557,9 +558,7 @@ public final class JdbcSqlStat implements JdbcSqlStatMBean {
             map.put("LastErrorMessage", lastError.getMessage());
             map.put("LastErrorClass", lastError.getClass().getName());
 
-            StringWriter buf = new StringWriter();
-            lastError.printStackTrace(new PrintWriter(buf));
-            map.put("LastErrorStackTrace", buf.toString());
+            map.put("LastErrorStackTrace", JdbcUtils.getStackTrace(lastError));
             map.put("LastErrorTime", new Date(executeErrorLastTime));
         } else {
             map.put("LastErrorMessage", null);
diff --git a/src/main/java/com/alibaba/druid/util/JMXUtils.java b/src/main/java/com/alibaba/druid/util/JMXUtils.java
index 839c73f0b4..caf2e08005 100644
--- a/src/main/java/com/alibaba/druid/util/JMXUtils.java
+++ b/src/main/java/com/alibaba/druid/util/JMXUtils.java
@@ -74,8 +74,7 @@ public final class JMXUtils {
 
     public static CompositeType getThrowableCompositeType() throws JMException {
         if (THROWABLE_COMPOSITE_TYPE == null) {
-            THROWABLE_COMPOSITE_TYPE = new CompositeType("Throwable", "Throwable", THROWABLE_COMPOSITE_INDEX_NAMES, THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS,
-                                                         THROWABLE_COMPOSITE_INDEX_TYPES);
+            THROWABLE_COMPOSITE_TYPE = new CompositeType("Throwable", "Throwable", THROWABLE_COMPOSITE_INDEX_NAMES, THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS, THROWABLE_COMPOSITE_INDEX_TYPES);
         }
 
         return THROWABLE_COMPOSITE_TYPE;
@@ -91,10 +90,7 @@ public final class JMXUtils {
         map.put("class", error.getClass().getName());
         map.put("message", error.getMessage());
 
-        StringWriter buf = new StringWriter();
-        error.printStackTrace(new PrintWriter(buf));
-
-        map.put("stackTrace", buf.toString());
+        map.put("stackTrace", JdbcUtils.getStackTrace(error));
 
         return new CompositeDataSupport(getThrowableCompositeType(), map);
     }
diff --git a/src/main/java/com/alibaba/druid/util/JdbcUtils.java b/src/main/java/com/alibaba/druid/util/JdbcUtils.java
index d45c1963a6..1ac4fe0d3a 100644
--- a/src/main/java/com/alibaba/druid/util/JdbcUtils.java
+++ b/src/main/java/com/alibaba/druid/util/JdbcUtils.java
@@ -19,6 +19,7 @@ import java.io.Closeable;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintStream;
+import java.io.PrintWriter;
 import java.io.Reader;
 import java.io.StringWriter;
 import java.net.URL;
@@ -39,7 +40,8 @@ import com.alibaba.druid.logging.LogFactory;
  * @author wenshao<szujobs@hotmail.com>
  */
 public final class JdbcUtils {
-    private final static Log LOG = LogFactory.getLog(JdbcUtils.class);
+
+    private final static Log        LOG              = LogFactory.getLog(JdbcUtils.class);
 
     private static final Properties driverUrlMapping = new Properties();
 
@@ -426,12 +428,12 @@ public final class JdbcUtils {
             throw new SQLException("unkow jdbc driver : " + rawUrl);
         }
     }
-    
+
     public static String getDbType(String rawUrl, String driverClassName) {
         if (rawUrl == null) {
             return null;
         }
-        
+
         if (rawUrl.startsWith("jdbc:derby:")) {
             return "derby";
         } else if (rawUrl.startsWith("jdbc:mysql:")) {
@@ -488,4 +490,11 @@ public final class JdbcUtils {
             return null;
         }
     }
+
+    public static String getStackTrace(Throwable ex) {
+        StringWriter buf = new StringWriter();
+        ex.printStackTrace(new PrintWriter(buf));
+
+        return buf.toString();
+    }
 }