Code Enhancements...

pom.xml

@@ -83,7 +83,9 @@
                 <executions>
                     <execution>
                         <phase>package</phase>
-                        <goals><goal>proguard</goal></goals>
+                        <goals>
+                            <goal>proguard</goal>
+                        </goals>
                     </execution>
                 </executions>
                 <configuration>
@@ -103,7 +105,7 @@
 
                         <!-- These three are required for the json serializer, breaks if removed, oh and also for the config :) -->
                         <option>-keep class com.massivecraft.factions.Conf { *; }</option>
-                        <option>-keepclassmembers enum * { *; } </option>
+                        <option>-keepclassmembers enum * { *; }</option>
                         <option>-keep class com.massivecraft.factions.zcore.persist.json.** { *; }</option>
 
                         <!-- keep the lib -->

src/main/java/com/massivecraft/factions/Conf.java

@@ -21,7 +21,6 @@ public class Conf {
 	public static final transient boolean DYNMAP_STYLE_BOOST = false;
 	public static List<String> baseCommandAliases = new ArrayList<>();
 	public static boolean allowNoSlashCommand = true;
-	public static Set<String> allowedStealthFactions = new LinkedHashSet<>();
 
 	// Colors
 	public static ChatColor colorMember = ChatColor.GREEN;

src/main/java/com/massivecraft/factions/FLocation.java

@@ -8,6 +8,7 @@ import org.bukkit.entity.Player;
 import java.io.Serializable;
 import java.util.HashSet;
 import java.util.LinkedHashSet;
+import java.util.Objects;
 import java.util.Set;
 
 public class FLocation implements Serializable {
@@ -251,6 +252,6 @@ public class FLocation implements Serializable {
 		}
 
 		FLocation that = (FLocation) obj;
-		return this.x == that.x && this.z == that.z && (this.worldName == null ? that.worldName == null : this.worldName.equals(that.worldName));
+		return this.x == that.x && this.z == that.z && (Objects.equals(this.worldName, that.worldName));
 	}
 }

src/main/java/com/massivecraft/factions/FPlayer.java

@@ -367,11 +367,11 @@ public interface FPlayer extends EconomyParticipator {
 
 	boolean checkIfNearbyEnemies();
 
-	public int getCooldown(String cmd);
+	int getCooldown(String cmd);
 
-	public void setCooldown(String cmd, long cooldown);
+	void setCooldown(String cmd, long cooldown);
 
-	public boolean isCooldownEnded(String cmd);
+	boolean isCooldownEnded(String cmd);
 
 
 	// -------------------------------

src/main/java/com/massivecraft/factions/FPlayers.java

@@ -14,9 +14,8 @@ public abstract class FPlayers {
 	}
 
 	private static FPlayers getFPlayersImpl() {
-		switch (Conf.backEnd) {
-			case JSON:
-				return new JSONFPlayers();
+		if (Conf.backEnd == Conf.Backend.JSON) {
+			return new JSONFPlayers();
 		}
 		return null;
 	}

src/main/java/com/massivecraft/factions/cmd/CmdConvert.java

@@ -27,14 +27,11 @@ public class CmdConvert extends FCommand {
 			this.sender.sendMessage(TL.COMMAND_CONVERT_BACKEND_RUNNING.toString());
 			return;
 		}
-		switch (nb) {
-			case JSON:
-				FactionsJSON.convertTo();
-				break;
-			default:
-				this.sender.sendMessage(TL.COMMAND_CONVERT_BACKEND_INVALID.toString());
-				return;
-
+		if (nb == Backend.JSON) {
+			FactionsJSON.convertTo();
+		} else {
+			this.sender.sendMessage(TL.COMMAND_CONVERT_BACKEND_INVALID.toString());
+			return;
 		}
 		Conf.backEnd = nb;
 	}

src/main/java/com/massivecraft/factions/cmd/CmdHome.java

@@ -79,9 +79,7 @@ public class CmdHome extends FCommand {
 		final Location loc = me.getLocation().clone();
 
 		// if player is not in a safe zone or their own faction territory, only allow teleport if no enemies are nearby
-		if (Conf.homesTeleportAllowedEnemyDistance > 0 &&
-				  !faction.isSafeZone() &&
-				  (!fme.isInOwnTerritory() || (fme.isInOwnTerritory() && !Conf.homesTeleportIgnoreEnemiesIfInOwnTerritory))) {
+		if (Conf.homesTeleportAllowedEnemyDistance > 0 && !faction.isSafeZone() && (!fme.isInOwnTerritory() || !Conf.homesTeleportIgnoreEnemiesIfInOwnTerritory)) {
 			World w = loc.getWorld();
 			double x = loc.getX();
 			double y = loc.getY();

src/main/java/com/massivecraft/factions/cmd/CmdList.java

@@ -69,7 +69,7 @@ public class CmdList extends FCommand {
 		});
 
 		// Then sort by how many members are online now
-		Collections.sort(factionList, (f1, f2) -> {
+		factionList.sort((f1, f2) -> {
 			int f1Size = f1.getFPlayersWhereOnline(true).size();
 			int f2Size = f2.getFPlayersWhereOnline(true).size();
 			if (f1Size < f2Size) {

src/main/java/com/massivecraft/factions/cmd/CmdRules.java

@@ -67,7 +67,7 @@ public class CmdRules extends FCommand {
 				String message = "";
 				StringBuilder string = new StringBuilder(message);
 				for (int i = 1; i <= args.size() - 1; i++) {
-					string.append(" " + args.get(i));
+					string.append(" ").append(args.get(i));
 				}
 				fme.getFaction().addRule(string.toString());
 				fme.msg(TL.COMMAND_RULES_ADD_SUCCESS);

src/main/java/com/massivecraft/factions/cmd/CmdSeeChunk.java

@@ -72,9 +72,7 @@ public class CmdSeeChunk extends FCommand {
 
 	private void startTask() {
 		taskID = Bukkit.getScheduler().scheduleSyncRepeatingTask(SaberFactions.plugin, () -> {
-			Iterator<String> itr = seeChunkMap.keySet().iterator();
-			while (itr.hasNext()) {
-				Object nameObject = itr.next();
+			for (Object nameObject : seeChunkMap.keySet()) {
 				String name = nameObject + "";
 				Player player = Bukkit.getPlayer(name);
 				showBorders(player);

src/main/java/com/massivecraft/factions/cmd/CmdStrikeSet.java

@@ -43,25 +43,28 @@ public class CmdStrikeSet extends FCommand {
         if (faction == null) {
             fme.msg(TL.COMMAND_SETSTRIKES_FAILURE.toString().replace("{faction}", args.get(1)));
         }
-        if (args.get(0).equalsIgnoreCase("set")) {
-            faction.setStrikes(argAsInt(2));
-            success = true;
-        } else if (args.get(0).equalsIgnoreCase("give")) {
-            faction.setStrikes(faction.getStrikes() + argAsInt(2));
-            success = true;
-        } else if (args.get(0).equalsIgnoreCase("take")) {
-            faction.setStrikes(faction.getStrikes() - argAsInt(2));
-            success = true;
-        }
-        if (success) {
-            for (FPlayer fPlayer : FPlayers.getInstance().getOnlinePlayers()) {
-                fPlayer.msg(TL.COMMAND_SETSTRIKES_BROADCAST.toString()
-                        .replace("{faction}", faction.getTag())
-                        .replace("{reason}", getReason()));
+
+        if (faction != null) {
+            if (args.get(0).equalsIgnoreCase("set")) {
+                faction.setStrikes(argAsInt(2));
+                success = true;
+            } else if (args.get(0).equalsIgnoreCase("give")) {
+                faction.setStrikes(faction.getStrikes() + argAsInt(2));
+                success = true;
+            } else if (args.get(0).equalsIgnoreCase("take")) {
+                faction.setStrikes(faction.getStrikes() - argAsInt(2));
+                success = true;
+            }
+            if (success) {
+                for (FPlayer fPlayer : FPlayers.getInstance().getOnlinePlayers()) {
+                    fPlayer.msg(TL.COMMAND_SETSTRIKES_BROADCAST.toString()
+                            .replace("{faction}", faction.getTag())
+                            .replace("{reason}", getReason()));
+                }
+                fme.msg(TL.COMMAND_SETSTRIKES_SUCCESS.toString()
+                        .replace("{faction}", faction.getTag())
+                        .replace("{strikes}", faction.getStrikes() + ""));
             }
-            fme.msg(TL.COMMAND_SETSTRIKES_SUCCESS.toString()
-                    .replace("{faction}", faction.getTag())
-                    .replace("{strikes}", faction.getStrikes() + ""));
         }
     }
 

src/main/java/com/massivecraft/factions/listeners/FactionsBlockListener.java

@@ -496,7 +496,6 @@ public class FactionsBlockListener implements Listener {
                 Access access = fme.getFaction().getAccess(fme, PermissableAction.SPAWNER);
                 if (access != Access.ALLOW && fme.getRole() != Role.LEADER) {
                     fme.msg(TL.GENERIC_FPERM_NOPERMISSION, "mine spawners");
-                    return;
                 }
             }
         }

src/main/java/com/massivecraft/factions/listeners/FactionsEntityListener.java

@@ -244,16 +244,9 @@ public class FactionsEntityListener implements Listener {
 		}
 
 		// Loop the blocklist to run checks on each aimed block
-		Iterator<Block> blockList = event.blockList().iterator();
 
-		while (blockList.hasNext()) {
-			Block block = blockList.next();
-
-			if (!this.checkExplosionForBlock(boomer, block)) {
-				// The block don't have to explode
-				blockList.remove();
-			}
-		}
+		// The block don't have to explode
+		event.blockList().removeIf(block -> !this.checkExplosionForBlock(boomer, block));
 
 		// Cancel the event if no block will explode
 		if (!event.blockList().isEmpty() && (boomer instanceof TNTPrimed || boomer instanceof ExplosiveMinecart) && Conf.handleExploitTNTWaterlog) {
@@ -302,10 +295,7 @@ public class FactionsEntityListener implements Listener {
 			return false;
 		} else if (
 			// it's a bit crude just using fireball protection for Wither boss too, but I'd rather not add in a whole new set of xxxBlockWitherExplosion or whatever
-				  (boomer instanceof Fireball || boomer instanceof WitherSkull || boomer instanceof Wither) && ((faction.isWilderness() && Conf.wildernessBlockFireballs && !Conf.worldsNoWildernessProtection.contains(block.getWorld().getName())) ||
-							 (faction.isNormal() && (online ? Conf.territoryBlockFireballs : Conf.territoryBlockFireballsWhenOffline)) ||
-							 (faction.isWarZone() && Conf.warZoneBlockFireballs) ||
-							 faction.isSafeZone())) {
+				(boomer instanceof Fireball || boomer instanceof Wither) && (faction.isWilderness() && Conf.wildernessBlockFireballs && !Conf.worldsNoWildernessProtection.contains(block.getWorld().getName()) || faction.isNormal() && (online ? Conf.territoryBlockFireballs : Conf.territoryBlockFireballsWhenOffline) || faction.isWarZone() && Conf.warZoneBlockFireballs || faction.isSafeZone())) {
 			// ghast fireball which needs prevention
 			return false;
 		} else

src/main/java/com/massivecraft/factions/listeners/FactionsPlayerListener.java

@@ -992,9 +992,7 @@ public class FactionsPlayerListener implements Listener {
         //we made it this far, since we didn't return yet, we must have sent the chat event through
         //iterate through all of recipients and check if they're muted, then remove them from the event list
 
-        List<Player> l = new ArrayList<>();
-
-        l.addAll(e.getRecipients());
+        List<Player> l = new ArrayList<>(e.getRecipients());
 
         for (int i = l.size() - 1; i >= 0; i--){ // going backwards in the list to prevent a ConcurrentModificationException
             Player recipient = l.get(i);

src/main/java/com/massivecraft/factions/scoreboards/FSidebarProvider.java

@@ -7,6 +7,7 @@ import com.massivecraft.factions.zcore.util.TL;
 import com.massivecraft.factions.zcore.util.TagUtil;
 
 import java.util.List;
+import java.util.Objects;
 
 public abstract class FSidebarProvider {
 
@@ -24,7 +25,7 @@ public abstract class FSidebarProvider {
 		// Run through Placeholder API first
 		s = TagUtil.parsePlaceholders(fPlayer.getPlayer(), s);
 
-		return qualityAssure(TagUtil.parsePlain(faction, fPlayer, s));
+		return qualityAssure(Objects.requireNonNull(TagUtil.parsePlain(faction, fPlayer, s)));
 	}
 
 	private String qualityAssure(String line) {

src/main/java/com/massivecraft/factions/skript/expressions/player/PlayerChunkLocationExpression.java

@@ -51,5 +51,4 @@ public class PlayerChunkLocationExpression extends SimpleExpression<String> {
         }
         return null;
     }
-
 }

src/main/java/com/massivecraft/factions/util/MapFLocToStringSetTypeAdapter.java

@@ -40,9 +40,7 @@ public class MapFLocToStringSetTypeAdapter implements JsonDeserializer<Map<FLoca
 
 					nameSet = new HashSet<>();
 					iter = entry2.getValue().getAsJsonArray().iterator();
-					while (iter.hasNext()) {
-						nameSet.add(iter.next().getAsString());
-					}
+					while (iter.hasNext()) nameSet.add(iter.next().getAsString());
 
 					locationMap.put(new FLocation(worldName, x, z), nameSet);
 				}

src/main/java/com/massivecraft/factions/util/VisualizeUtil.java

@@ -16,11 +16,7 @@ public class VisualizeUtil {
 	}
 
 	public static Set<Location> getPlayerLocations(UUID uuid) {
-		Set<Location> ret = playerLocations.get(uuid);
-		if (ret == null) {
-			ret = new HashSet<>();
-			playerLocations.put(uuid, ret);
-		}
+		Set<Location> ret = playerLocations.computeIfAbsent(uuid, k -> new HashSet<>());
 		return ret;
 	}
 

src/main/java/com/massivecraft/factions/zcore/fupgrades/EXPUpgrade.java

@@ -16,7 +16,7 @@ public class EXPUpgrade implements Listener {
 	public void onDeath(EntityDeathEvent e) {
 		Entity killer = e.getEntity().getKiller();
 
-		if (killer == null || !(killer instanceof Player))
+		if (killer == null)
 			return;
 
 		FLocation floc = new FLocation(e.getEntity().getLocation());

src/main/java/com/massivecraft/factions/zcore/fupgrades/RedstoneUpgrade.java

@@ -22,10 +22,8 @@ public class RedstoneUpgrade implements Listener {
         if (!factionAtLoc.isWilderness()) {
             int level = factionAtLoc.getUpgrade(UpgradeType.REDSTONE);
             if (level != 0) {
-                switch (level) {
-                    case 1:
-                        SaberFactions.plugin.getConfig().getInt("fupgrades.MainMenu.Redstone.Cost");
-                        break;
+                if (level == 1) {
+                    SaberFactions.plugin.getConfig().getInt("fupgrades.MainMenu.Redstone.Cost");
                 }
                 if (unbreakable.contains(block)) {
                     e.setCancelled(true);

src/main/java/com/massivecraft/factions/zcore/persist/MemoryBoard.java

@@ -53,12 +53,7 @@ public abstract class MemoryBoard extends Board {
 
 	public void removeAt(FLocation flocation) {
 		Faction faction = getFactionAt(flocation);
-		Iterator<LazyLocation> it = faction.getWarps().values().iterator();
-		while (it.hasNext()) {
-			if (flocation.isInChunk(it.next().getLocation())) {
-				it.remove();
-			}
-		}
+		faction.getWarps().values().removeIf(lazyLocation -> flocation.isInChunk(lazyLocation.getLocation()));
 		clearOwnershipAt(flocation);
 		flocationIds.remove(flocation);
 	}

src/main/java/com/massivecraft/factions/zcore/persist/MemoryFaction.java

@@ -273,12 +273,7 @@ public abstract class MemoryFaction implements Faction, EconomyParticipator {
 	}
 
 	public void unban(FPlayer player) {
-		Iterator<BanInfo> iter = bans.iterator();
-		while (iter.hasNext()) {
-			if (iter.next().getBanned().equalsIgnoreCase(player.getId())) {
-				iter.remove();
-			}
-		}
+		bans.removeIf(banInfo -> banInfo.getBanned().equalsIgnoreCase(player.getId()));
 	}
 
 	@Override
@@ -1199,12 +1194,7 @@ public abstract class MemoryFaction implements Faction, EconomyParticipator {
 				continue;
 			}
 
-			Iterator<String> iter = ownerData.iterator();
-			while (iter.hasNext()) {
-				if (iter.next().equals(player.getId())) {
-					iter.remove();
-				}
-			}
+			ownerData.removeIf(s -> s.equals(player.getId()));
 
 			if (ownerData.isEmpty()) {
 				claimOwnership.remove(entry.getKey());

src/main/resources/plugin.yml

@@ -9,10 +9,6 @@ commands:
   factions:
     description: Reference command for Factions.
     aliases: [f]
-  bottle:
-    description: withdraw experience.
-  withdraw:
-    description: withdraw money.
 permissions:
   factions.kit.admin:
     description: All faction permissions.