From b51a167bc7eb68286d105fba496e07b0dc2bf18f Mon Sep 17 00:00:00 2001
From: wenshao <szujobs@hotmail.com>
Date: Thu, 12 May 2011 01:53:50 +0000
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E5=BC=82=E5=B8=B8=E5=A4=84?=
 =?UTF-8?q?=E7=90=86=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@20 b9813039-fb51-4c41-a8b9-e21c2acb5095
---
 .../com/alibaba/druid/pool/DruidDataAbstractSource.java   | 8 +++++++-
 src/main/java/com/alibaba/druid/pool/DruidDataSource.java | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataAbstractSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataAbstractSource.java
index 83f155823b..7b2fd85eb4 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataAbstractSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataAbstractSource.java
@@ -491,9 +491,15 @@ public abstract class DruidDataAbstractSource implements DataSource, DataSourceP
     }
 
     @Override
-    public PrintWriter getLogWriter() throws SQLException {
+    public PrintWriter getLogWriter() {
         return logWriter;
     }
+    
+    protected void printStackTrace(Throwable e) {
+        if (logWriter != null) {
+            e.printStackTrace(logWriter);
+        }
+    }
 
     @Override
     public void setLogWriter(PrintWriter out) throws SQLException {
diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 43bf3e49cf..51a004eae4 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -487,7 +487,7 @@ public class DruidDataSource extends DruidDataAbstractSource implements DruidDat
                 } catch (InterruptedException e) {
                     break;
                 } catch (SQLException e) {
-                    e.printStackTrace();
+                    printStackTrace(e);
                 } finally {
                     lock.unlock();
                 }
@@ -532,7 +532,7 @@ public class DruidDataSource extends DruidDataAbstractSource implements DruidDat
                     try {
                         connection.close();
                     } catch (SQLException e) {
-                        e.printStackTrace(); // TODO
+                        printStackTrace(e);
                     }
 
                     destroyCount++;