import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class MySqlTest {
  public static void main(String[] args) {
    try {
      Connection conn = DriverManager.getConnection("jdbc:mysql://<hostname>/<database>?user=<username>&password=<password>&useSSL=false");
      PreparedStatement sql = conn.prepareStatement("SELECT * FROM DATABASECHANGELOGLOCK");
      ResultSet result = sql.executeQuery();
      while (result.next()) {
        System.out.println("id: " + result.getInt(1) + " locked: " + result.getBoolean(2));
      }
      System.out.println("Done.");
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }
}