Trying to run this program in BlueJ , but was saying org.bukkit.configuration.file.FileConfiguration; does not exit. what can do to run it or where could run it ?

import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.logging.Level; import org.bukkit.configuration.file.FileConfiguration; public class LotteryConfig { final private Lottery plugin; private FileConfiguration config; private double cost; private double hours; private long nextexec; private boolean useiConomy; private int material; private double extraInPot; private boolean broadcastBuying; private int broadcastBuyingTime; private boolean welcomeMessage; private double netPayout; private boolean clearExtraInPot; private int maxTicketsEachUser; private int ticketsAvailable; private double jackpot; private String lastwinner; private double lastwinneramount; private boolean buyingExtendDeadline; private int buyingExtendRemaining; private double buyingExtendBase; private double buyingExtendMultiplier; private String taxTarget; private HashMap> messages; public LotteryConfig(final Lottery plugin) { this.plugin = plugin; this.config = plugin.getConfig(); } public void loadConfig() { plugin.reloadConfig(); config = plugin.getConfig(); debugMsg("Loading Lottery configuration"); hours = config.getDouble("config.hours", 24); useiConomy = config.getBoolean("config.useiConomy", true); material = config.getInt("config.material", 266); broadcastBuying = config.getBoolean("config.broadcastBuying", true); broadcastBuyingTime = config.getInt("config.broadcastBuyingTime", 120); welcomeMessage = config.getBoolean("config.welcomeMessage", true); extraInPot = config.getDouble("config.extraInPot", 0); clearExtraInPot = config.getBoolean("config.clearExtraInPot", true); netPayout = config.getDouble("config.netPayout", 100); maxTicketsEachUser = config.getInt("config.maxTicketsEachUser", 1); ticketsAvailable = config.getInt("config.numberOfTicketsAvailable", 0); jackpot = config.getDouble("config.jackpot", 0); nextexec = config.getLong("config.nextexec"); cost = Etc.formatAmount(config.getDouble("config.cost", 5), useiConomy); lastwinner = config.getString("config.lastwinner", ""); lastwinneramount = config.getDouble("config.lastwinneramount", 0); buyingExtendDeadline = config.getBoolean("config.buyingExtend.enabled", true); buyingExtendRemaining = config.getInt("config.buyingExtend.secondsRemaining", 30); buyingExtendBase = config.getDouble("config.buyingExtend.extendBase", 15); buyingExtendMultiplier = config.getDouble("config.buyingExtend.extendMultiplier", 1.5); taxTarget = config.getString("config.taxTarget", ""); // Load messages? loadCustomMessages(); // Then lets save this stuff :) plugin.saveConfig(); } public void set(final String path, final Object value) { config.set(path, value); plugin.saveConfig(); } public void loadCustomMessages() { messages = new HashMap>(); messages.put("prefix", formatCustomMessage("message.prefix", "&6[LOTTERY]&r")); messages.put("Welcome", formatCustomMessage("message.Welcome", "%prefix% &fDraw in: &c%drawLong%")); messages.put("ErrorPlugin", formatCustomMessage("message.ErrorPlugin", "%prefix% Sorry, we haven\'t found a money plugin yet..")); messages.put("ErrorAccess", formatCustomMessage("message.ErrorAccess", "%prefix% You don\'t have access to that command.")); messages.put("ErrorCommand", formatCustomMessage("message.ErrorCommand", "%prefix% Hey, I don\'t recognize that command!")); messages.put("ErrorConsole", formatCustomMessage("message.ErrorConsole", "%prefix% You\'re the console, I can\'t sell you tickets.")); messages.put("ErrorConsole2", formatCustomMessage("message.ErrorConsole2", "%prefix% You\'re the console, you don\'t have an inventory.")); messages.put("ErrorConsole3", formatCustomMessage("message.ErrorConsole3", "%prefix% You\'re the console, you can\'t change that.")); messages.put("ErrorNoAvailable", formatCustomMessage("message.ErrorNoAvailable", "%prefix% There are no more tickets available")); messages.put("ErrorAtMax", formatCustomMessage("message.ErrorAtMax", "%prefix% You already have the maximum of %0% %1% already.")); messages.put("ErrorNotAfford", formatCustomMessage("message.ErrorNotAfford", "%prefix% You can\'t afford a ticket")); messages.put("ErrorNumber", formatCustomMessage("message.ErrorNumber", "%prefix% Provide a number greater than zero (decimals accepted)")); messages.put("ErrorClaim", formatCustomMessage("message.ErrorClaim", "%prefix% You did not have anything unclaimed.")); messages.put("TicketCommand", formatCustomMessage("message.TicketCommand", "%prefix% Buy a ticket for &c%cost% &rwith &c/lottery buy")); messages.put("PotAmount", formatCustomMessage("message.PotAmount", "%prefix% There is currently &a%pot% &rin the pot.")); messages.put("YourTickets", formatCustomMessage("message.YourTickets", "%prefix% You have &c%0% &r%1%")); messages.put("TicketRemaining", formatCustomMessage("message.TimeRemaining", "%prefix% There is &c%0% &r%1% left.")); messages.put("CommandHelp", formatCustomMessage("message.CommandHelp", "%prefix% &c/lottery help&r for other commands")); messages.put("LastWinner", formatCustomMessage("message.LastWinner", "%prefix% Last winner: %0% %1%")); messages.put("CheckClaim", formatCustomMessage("message.CheckClaim", "%prefix% Check if you have won with &c/lottery claim")); messages.put("BoughtTicket", formatCustomMessage("message.BoughtTicket", "%prefix% You got &c%0% &r%1% for &c%2%")); messages.put("BoughtTickets", formatCustomMessage("message.BoughtTickets", "%prefix% You now have &c%0% &r%1%")); messages.put("BoughtAnnounceDraw", formatCustomMessage("message.BoughtAnnounceDraw", "%prefix% &r%0% &rjust bought %1% %2%! Draw in %3%")); messages.put("BoughtAnnounce", formatCustomMessage("message.BoughtAnnounce", "%prefix% &r%0% &rjust bought %1% %2%!")); messages.put("DrawIn", formatCustomMessage("message.DrawIn", "%prefix% Draw in: &c%0%")); messages.put("DrawNow", formatCustomMessage("message.DrawNow", "%prefix% Lottery will be drawn at once.")); messages.put("DrawSoon", formatCustomMessage("message.DrawSoon", "Soon")); messages.put("DrawSoonLong", formatCustomMessage("message.DrawSoonLong", "Draw will occur soon!")); messages.put("PlayerClaim", formatCustomMessage("message.PlayerClaim", "%prefix You just claimed %0%")); messages.put("MessagesEnabled", formatCustomMessage("message.MessagesEnabled", "%prefix% You will now receive Lottery broadcast messages.")); messages.put("MessagesDisabled", formatCustomMessage("message.MessagesDisabled", "%prefix% You will no longer receive Lottery broadcast messages.")); messages.put("NoWinnerTickets", formatCustomMessage("message.NoWinnerTickets", "%prefix% No tickets sold this round. That\'s a shame.")); messages.put( "NoWinnerRollover", formatCustomMessage("message.NoWinnerRollover", "%prefix% No winner, we have a rollover! &a%0% &rwent to jackpot!")); messages.put("WinnerCongrat", formatCustomMessage("message.WinnerCongrat", "%prefix% Congratulations go to %0% &rfor winning &c%1%&r with &c%2%&r %3%.")); messages.put("WinnerCongratClaim", formatCustomMessage("message.WinnerCongratClaim", "%prefix% Use &c/lottery claim &rto claim the winnings.")); messages.put("WinnerSummary", formatCustomMessage("message.WinnerSummary", "%prefix% There was a total of %0% %1% buying %2% %3%")); messages.put("AddToPot", formatCustomMessage("message.AddToPot", "%prefix% Added &a%0% &rto pot. Extra total is &a%1%")); messages.put("ConfigCost", formatCustomMessage("message.ConfigCost", "%prefix% Cost changed to &c%0%")); messages.put("ConfigHours", formatCustomMessage("message.ConfigHours", "%prefix% Hours changed to &c%0%")); messages.put("ConfigMax", formatCustomMessage("message.ConfigMax", "%prefix% Max amount of tickets changed to &c%0%")); messages.put("ConfigReload", formatCustomMessage("message.ConfigReload", "%prefix% Config reloaded")); messages.put( "Help", formatCustomMessage( "message.Help", "%prefix% Help commands%newline%%prefix% &c/lottery&r : Basic lottery info.%newline%%prefix% &c/lottery buy &r : Buy ticket(s)." + "%newline%%prefix% &c/lottery claim&r : Claim outstanding wins.%newline%%prefix% &c/lottery winners&r : Check last winners.")); messages.put( "HelpAdmin", formatCustomMessage( "message.HelpAdmin", "%prefix% &1/lottery draw&r : Draw lottery.%newline%%prefix% &1/lottery addtopot&r : Add number to pot.%newline%%prefix% &1/lottery " + "config&r : Edit the config.")); messages.put("HelpPot", formatCustomMessage("message.HelpPot", "%prefix% /lottery addtopot ")); messages.put( "HelpConfig", formatCustomMessage( "message.HelpConfig", "%prefix% Edit config commands%newline%%prefix% &c/lottery config cost %newline%%prefix% &c/lottery config hours %newline%%prefix% " + "&c/lottery config maxTicketsEachUser %newline%%prefix% &c/lottery config reload")); messages.put("ticket", formatCustomMessage("message.Ticket", "ticket")); messages.put("tickets", formatCustomMessage("message.Tickets", "tickets")); messages.put("player", formatCustomMessage("message.player", "player")); messages.put("players", formatCustomMessage("message.players", "players")); messages.put("day", formatCustomMessage("message.day", "day")); messages.put("days", formatCustomMessage("message.days", "days")); messages.put("hour", formatCustomMessage("message.hour", "hour")); messages.put("hours", formatCustomMessage("message.hours", "hours")); messages.put("minute", formatCustomMessage("message.minute", "minute")); messages.put("minutes", formatCustomMessage("message.minutes", "minutes")); messages.put("second", formatCustomMessage("message.second", "second")); messages.put("seconds", formatCustomMessage("message.seconds", "seconds")); } public String getPlural(String word, int amount){ String tlkey = ""; if (word.equalsIgnoreCase("ticket")) { tlkey = amount == 1 ? "ticket" : "tickets"; } if (word.equalsIgnoreCase("player")) { tlkey = amount == 1 ? "player" : "players"; } if (word.equalsIgnoreCase("day")) { tlkey = amount == 1 ? "day" : "days"; } if (word.equalsIgnoreCase("hour")) { tlkey = amount == 1 ? "hour" : "hours"; } if (word.equalsIgnoreCase("minute")) { tlkey = amount == 1 ? "minute" : "minutes"; } if (word.equalsIgnoreCase("second")) { tlkey = amount == 1 ? "second" : "seconds"; } String pluralTl = ""; try { for (String message : getMessage(tlkey)){ pluralTl = message; } return pluralTl; } catch (Exception e) { e.printStackTrace(); } return pluralTl; } public List getMessage(final String topic) throws Exception { if (!messages.containsKey(topic)) { throw new Exception("Invalid Translation key"); } return Collections.unmodifiableList(messages.get(topic)); } public List formatCustomMessage(final String node, final String def) { final List fList = new ArrayList(); // Lets find a msg. final String msg = config.getString(node, def); config.set(node, msg); // Lets put this in a arrayList in case we want more than one line. Collections.addAll(fList, msg.split("%newline%")); return fList; } // Enable some debugging? public void debugMsg(final String msg) { if (config.getBoolean("config.debug") && msg != null) { plugin.getLogger().log(Level.INFO, msg); } } public double getCost() { return cost; } public void setCost(final double cost) { this.cost = cost; set("config.cost", cost); } public double getHours() { return hours; } public void setHours(final double hours) { this.hours = hours; set("config.hours", hours); } public long getNextexec() { return nextexec; } public void setNextexec(final long nextexec) { this.nextexec = nextexec; set("config.nextexec", nextexec); } public boolean useiConomy() { return useiConomy; } public int getMaterial() { return material; } public double getExtraInPot() { return extraInPot; } public void setExtraInPot(final double extraInPot) { this.extraInPot = extraInPot; set("config.extraInPot", extraInPot); } public void addExtraInPot(final double extra) { extraInPot += extra; setExtraInPot(extraInPot); } public boolean useBroadcastBuying() { return broadcastBuying; } public int getBroadcastBuyingTime() { return broadcastBuyingTime; } public boolean useWelcomeMessage() { return welcomeMessage; } public double getNetPayout() { return netPayout; } public void setNetPayout(final double netPayout) { this.netPayout = netPayout; set("config.netPayout", netPayout); } public boolean clearExtraInPot() { return clearExtraInPot; } public int getMaxTicketsEachUser() { return maxTicketsEachUser; } public void setMaxTicketsEachUser(final int maxTicketsEachUser) { this.maxTicketsEachUser = maxTicketsEachUser; set("config.maxTicketsEachUser", maxTicketsEachUser); } public int getTicketsAvailable() { return ticketsAvailable; } public double getJackpot() { return jackpot; } public void setJackpot(final double jackpot) { this.jackpot = jackpot; set("config.jackpot", jackpot); } public String getLastwinner() { return lastwinner; } public void setLastwinner(final String lastwinner) { this.lastwinner = lastwinner; set("config.lastwinner", lastwinner); } public double getLastwinneramount() { return lastwinneramount; } public void setLastwinneramount(final double lastwinneramount) { this.lastwinneramount = lastwinneramount; set("config.lastwinneramount", lastwinneramount); } public boolean isBuyingExtendDeadline() { return buyingExtendDeadline; } public int getBuyingExtendRemaining() { return buyingExtendRemaining; } public double getBuyingExtendBase() { return buyingExtendBase; } public double getBuyingExtendMultiplier() { return buyingExtendMultiplier; } public String getTaxTarget() { return taxTarget; } public String formatCurrency(double amount) { return plugin.Method.format(amount); } }