Bug 211004 Failed to remove temp db directory after running multiple reports
Description: I use Report Engine API to do runAndrender, run and dataextract tasks on multiple reports. Before the Platform started, I change the temp folder(System.setProperty( "java.io.tmpdir", TEMP_HOME )). Each task is closed after it finished and I shutdown the Platform after all the tasks finished. In log I found "Fail to remove one or more file in temp db directory,but it will be removed when the VM exits: D:\BIRT_NG\temp/BIRTSampleDB_1196129572031_10a6ae2". In temp folder the BIRTSampleDB_XXX is still here but not removed. I think it is the issue when remove the Temp sampleDB. Build number: 2.3.0.v20071127-0630
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/JDBCDriverManager.java
return jndiDSConnection;
    }
    
    /**
     * Adds the specified user name and password to the
     * specified collection as Jdbc driver properties.
     * Creates a new collection if none is specified.
     */
    static Properties addUserAuthenticationProperties( Properties connProps,
			String user, String password )
	{
		if ( connProps == null )
			connProps = new Properties( );
		if ( user != null )
			connProps.setProperty( JDBC_USER_PROP_NAME, user );
		if ( password != null )
			connProps.setProperty( JDBC_PASSWORD_PROP_NAME, password );
		return connProps;
	}       
	
    /**
	 * Validate the URL & Jndi properties.
	 * 
	 * @param url
	 * @param jndiNameUrl
	 */
	private void validateConnectionUrl( String url, String jndiNameUrl )
	{
		if ( isBlank( url ) && isBlank( jndiNameUrl ) )