Bug 173039 Exception is shown when accessing a db on an unknown host
Create a report Add a datasource and specified a invalid host name Click on test connection An oversized error dialog appears showing a stack trace Expected: a simple error such as "Host xxx is not accessible" should be displayed instead.
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/JDBCDriverManager.java
{    
    public static final String JDBC_USER_PROP_NAME = "user"; 
    public static final String JDBC_PASSWORD_PROP_NAME = "password"; 
    public static final String DRIVER_REGISTERED = "registered";
    public static final String DRIVER_DEREGISTERED = "deregistered";
    
	private  HashMap registeredDrivers = new HashMap();
	
	
	private HashMap cachedDriversMap = new HashMap();
	
	
	 
	private HashMap driverExtensions = null;
	
	private  DriverClassLoader extraDriverLoader = null;
	
	
	private JdbcResourceHandle resourceHandle = new JdbcResourceHandle(ULocale
			.getDefault());
	
	private static JDBCDriverManager instance;
	
	private static Logger logger = Logger.getLogger( JDBCDriverManager.class.getName() );
	
	private JDBCDriverManager()
	{
		logger.logp( java.util.logging.Level.FINE,
				OdaJdbcDriver.class.getName( ),
				"JDBCDriverManager",