JDBC4ConnectionWrapper.java 文件源码

/**
 * @see java.sql.Connection#createClob()
 */
public Clob createClob() throws SQLException {
    checkClosed();

    try {
        return ((java.sql.Connection) this.mc).createClob();
    } catch (SQLException sqlException) {
        checkAndFireConnectionError(sqlException);
    }

    return null; // never reached, but compiler can't tell
}