From aad9961a71a56ec45ccf6bac8536010f584e121a Mon Sep 17 00:00:00 2001
From: wenshao <szujobs@qq.com>
Date: Wed, 7 Dec 2011 11:12:05 +0800
Subject: [PATCH] bug fixed : after real connection closed,
 closePoolableStatementError

---
 .../java/com/alibaba/druid/pool/PoolableConnection.java   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/java/com/alibaba/druid/pool/PoolableConnection.java b/src/main/java/com/alibaba/druid/pool/PoolableConnection.java
index 6ce6c97072..2920ee6d99 100644
--- a/src/main/java/com/alibaba/druid/pool/PoolableConnection.java
+++ b/src/main/java/com/alibaba/druid/pool/PoolableConnection.java
@@ -81,6 +81,10 @@ public class PoolableConnection implements PooledConnection, Connection {
     }
 
     void closePoolableStatement(PoolablePreparedStatement stmt) throws SQLException {
+        if (this.isClosed()) {
+            return;
+        }
+        
         PreparedStatement rawStatement = stmt.getRawPreparedStatement();
 
         try {
@@ -88,6 +92,10 @@ public class PoolableConnection implements PooledConnection, Connection {
         } catch (SQLException ex) {
             LOG.error("clear parameter error", ex);
         }
+        
+        if (holder == null) {
+            return;
+        }
 
         if (holder.isPoolPreparedStatements()) {
             stmt.clearResultSet();