Java Utililty Methods JDBC Connection Create

return getConnection(SOURCE_DB_URL_KEY, SOURCE_DB_USERNAME_KEY, SOURCE_DB_PASSWORD_KEY, SOURCE_DB_TYPE_KEY,
        SOURCE_DB_DRIVER_KEY, env);

Class.forName(config.get("driver")).newInstance();
Connection connection = DriverManager.getConnection(config.get("url"), config.get("user"),
        config.get("password"));
return connection.createStatement();

return getConnection(dbResourceBundle.getString("targetDriver"),
        dbResourceBundle.getString("targetConnectionString"), dbResourceBundle.getString("targetUserName"),
        dbResourceBundle.getString("targetPassword"));

Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");
String url = "jdbc:ucanaccess://C:/users/cgrass/Desktop/" + "USM Marketing Application/Test Database/"
        + "test_USMMarketingIntelligenceDatabase.accdb";
Connection conn = DriverManager.getConnection(url);
return conn;

Connection connection = null;
try {
    loadProperties();
    String location = properties.getProperty("db.location"); 
    DB_DRIVER = properties.getProperty("db.driver");
    DB_USER = properties.getProperty("db.username");
    DB_PASSWORD = properties.getProperty("db.password");
    URL = properties.getProperty(location + ".url_trec");
...

Connection connection = null;
checkprops();
Logger.global.log(Level.FINE, "DriverManager.getConnection(url)");
connection = DriverManager.getConnection(url);
Logger.global.log(Level.INFO, "DriverManager.getConnection(url) passed");
Logger.global.log(Level.FINE, "==============\n\n");
return connection;

Connection connection = null;
checkprops();
Logger.global.log(Level.FINE, "DriverManager.getConnection(url, usr, pwd)");
connection = DriverManager.getConnection(url, usr, pwd);
Logger.global.log(Level.INFO, "DriverManager.getConnection(url, usr, pwd) passed");
Logger.global.log(Level.FINE, "==============\n\n");
return connection;

try {
    DriverManager.getConnection(connectionString);
} catch (SQLException ex) {
    boolean successfullShutdown = expectedErrorCode == ex.getErrorCode()
            && expectedSQLState.equals(ex.getSQLState());
    if (!successfullShutdown) {
        throw ex;

try {
    Statement statement = getStatement(config);
    return statement.execute(sql);
} catch (Exception e) {
    throw new RuntimeException("Failed to execute query:" + sql, e);