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
String actualPkg = actual.substring(0, actual.lastIndexOf('.') );
		String expectedPkg = expected.substring(0, expected.lastIndexOf('.') );
		return actualPkg.equals( expectedPkg );
	}
	
	/**
	 * Try to create a connection based on given connection properties.
	 * @param driverClassName
	 * @param connectionString
	 * @param userId
	 * @param password
	 * @throws SQLException
	 * @throws OdaException
	 */
	private void tryCreateConnection( String driverClassName,
			String connectionString, String userId, String password )
			throws SQLException, OdaException
	{
		Connection testConn = this.getConnection( driverClassName, 
				connectionString, userId, password, null );
		assert ( testConn != null );
        closeConnection( testConn );
	}
	
	/**