Getting Exception when trying to get the PrepareStatement from Connection From
DBCP Pool
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Key: DBCP-366
URL: https://issues.apache.org/jira/browse/DBCP-366
Project: Commons Dbcp
Issue Type: Bug
Affects Versions: 1.2.2
Environment: Linux machine
Reporter: saroj kumar balusu
Using :commons-dbcp-1.2.2.jar version with Tomcat version 6.0.29
Geting the following exception when trying to get the java.sql.PrepareStatement
using a Connection from DBCP Pool.
java.sql.SQLException: Connection is closed.
at
org.apache.commons.dbcp.PoolingDriver$PoolGuardConnectionWrapper.checkOpen(PoolingDriver.java:263)
at
org.apache.commons.dbcp.PoolingDriver$PoolGuardConnectionWrapper.prepareStatement(PoolingDriver.java:366)
This is the configuration we are using for creating Connection Pool from DBCP
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public static void setupDriver(String connectURI, String userName,
String dbPassword, String maxActive, String minIdle,
String maxWait, String poolName) throws Exception {
GenericObjectPool.Config config = new
GenericObjectPool.Config();
config.maxActive = Integer.parseInt(maxActive);
config.minIdle = Integer.parseInt(minIdle);
config.maxWait = Integer.parseInt(maxWait);
config.whenExhaustedAction = 2;
config.minEvictableIdleTimeMillis = 1800000;
config.timeBetweenEvictionRunsMillis = 1800000;
config.numTestsPerEvictionRun = 3;
config.testOnBorrow = true;
config.testOnReturn = true;
config.testWhileIdle = true;
ObjectPool connectionPool = new GenericObjectPool(null, config);
ConnectionFactory connectionFactory = new
DriverManagerConnectionFactory(
connectURI, userName, dbPassword);
PoolableConnectionFactory poolableConnectionFactory = new
PoolableConnectionFactory(
connectionFactory, connectionPool, null, null,
false, true);
poolableConnectionFactory.setValidationQuery("select 1 from
dual");
driver = new PoolingDriver();
driver.registerPool(poolName, connectionPool);
driver.setAccessToUnderlyingConnectionAllowed(true);
// PoolingDataSource dataSource = new
PoolingDataSource(connectionPool);
// return dataSource;
}
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The following code is used to get the Connection is
---------------------------------------------------------------------------------------------------------------
public java.sql.Connection getConnection(poolName){
Connection con =
DriverManager.getConnection("jdbc:apache:commons:dbcp:"+poolName);
return con;
}
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The following code is used to release the connection
public void release(Connection conn) throws DBException {
try {
conn.close();
} catch (Exception e) {
throw new Exception(e.getMessage(), e);
}
}
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Can you let us know what might be the exact reason for the following exception
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