return null;
return "";
    public String getDataBaseName()    {    	if( jdbcConnection == null)    	{    		return null;    	}    	    	if ( metaData == null)      	{      		try			{      			metaData = jdbcConnection.getMetaData();			}      		catch(SQLException e)			{      			e.printStackTrace();			}      	}          	if(metaData == null)    	{    		return null;    	}    	    	String databaseName = "";    	try {			databaseName =  metaData.getDatabaseProductName();		} catch (SQLException e) {			e.printStackTrace();		}				if(databaseName == null)		{			databaseName = "";		}				return databaseName;		    	    	    }