[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-6635) C3P0: hibernate.c3p0.* configuration properties not properly parsed

String newKey = key.substring( 15 );

String peeledC3p0Key = c3p0StyleKey.substring(5); c3p.put( peeledC3p0Key, String.valueOf( value ).trim() );

C3P0: hibernate.c3p0.* configuration properties not properly parsed ------------------------------------------------------------------- Key: HHH-6635 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6635 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 4.0.0.CR1, 4.0.0.CR2 Reporter: Guenther Demetz Assignee: Strong Liu Labels: c3p0 Attachments: C3P0ConnectionProvider.java Original Estimate: 1h Remaining Estimate: 1h testing Hibernate4.0.0 CR 2 I discovered that unfortunately there is still a problem using C3P0 as ConnectionProvider: Though my patch provided with HHH-6327 made C3P0 work again, hibernate-c3p0 specific parameters such as hibernate.c3p0.max_size are not passed correctly to C3P0 anymore. The reason is that providing the patch for HHH-6327 I was not aware that the methods com.mchange.v2.c3p0.DataSources.java public static DataSource pooledDataSource( DataSource unpooledDataSource, Map overrideProps ) public static DataSource pooledDataSource( DataSource unpooledDataSource, Properties props ) are not processing the passed properties in the same way: whilst the first method parses the keyvalues as they are, the latter method peels the keyvalues by removing any "c3p0." prefix: public static DataSource pooledDataSource( DataSource unpooledDataSource, Properties props ) throws SQLException { //return pooledDataSource( unpooledDataSource, new PoolConfig( props ) ); Properties peeledProps = new Properties(); for (Iterator ii = props.keySet().iterator(); ii.hasNext(); ) { String propKey = (String) ii.next(); String propVal = props.getProperty( propKey ); String peeledKey = (propKey.startsWith("c3p0.") ? propKey.substring(5) : propKey ); peeledProps.put( peeledKey, propVal ); } return pooledDataSource( unpooledDataSource, null, peeledProps ); } The attached file does fix the problem.