[jira] [Created] (DBCP-366) Getting Exception when trying to get the PrepareStatement from Connection From DBCP Pool

["saroj kumar balusu (JIRA)" <ji...@apache.org>]

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 

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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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