兼容Oracle 10.x Driver

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@327 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/PoolableStatement.java

@@ -16,6 +16,7 @@
 package com.alibaba.druid.pool;
 
 import java.sql.Connection;
+import java.sql.Driver;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.SQLWarning;
@@ -419,6 +420,25 @@ public class PoolableStatement extends PoolableWrapper implements Statement {
             return true;
         }
 
+        Driver driver = null;
+        {
+            ConnectionHolder holder = conn.getConnectionHolder();
+            if (holder != null) {
+                DruidAbstractDataSource dataSource = holder.getDataSource();
+                if (dataSource != null) {
+                    driver = dataSource.getDriver();
+                }
+            }
+        }
+        // Oracle Driver 10.x is JDBC 3.0
+        if (driver != null) {
+            if ("oracle.jdbc.driver.OracleDriver".equals(driver.getClass().getName())) {
+                if (driver.getMajorVersion() <= 10) {
+                    return closed;
+                }
+            }
+        }
+
         try {
             return stmt.isClosed();
         } catch (Throwable t) {