Adjusted for breaking changes in 1.8.

src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java

@@ -19,6 +19,7 @@
 package me.ryanhamshire.GriefPrevention;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
 import org.bukkit.ChatColor;
@@ -122,10 +123,9 @@ public class BlockEventHandler implements Listener
 			
 			if(!player.hasPermission("griefprevention.eavesdrop"))
 			{
-				Player [] players = GriefPrevention.instance.getServer().getOnlinePlayers();
+				Collection<Player> players = (Collection<Player>)GriefPrevention.instance.getServer().getOnlinePlayers();
-				for(int i = 0; i < players.length; i++)
+				for(Player otherPlayer : players)
 				{
-					Player otherPlayer = players[i];
 					if(otherPlayer.hasPermission("griefprevention.eavesdrop"))
 					{
 						otherPlayer.sendMessage(ChatColor.GRAY + player.getName() + "(sign): " + signMessage);

src/me/ryanhamshire/GriefPrevention/DeliverClaimBlocksTask.java

@@ -18,6 +18,8 @@
  
  package me.ryanhamshire.GriefPrevention;
 
+import java.util.Collection;
+
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 
@@ -39,7 +41,7 @@ class DeliverClaimBlocksTask implements Runnable
 		//if no player specified, this task will create a player-specific task for each online player, scheduled one tick apart
 	    if(this.player == null)
 		{
-	        Player [] players = GriefPrevention.instance.getServer().getOnlinePlayers();
+	        Collection<Player> players = (Collection<Player>)GriefPrevention.instance.getServer().getOnlinePlayers();
 	        
 	        long i = 0;
 	        for(Player onlinePlayer : players)

src/me/ryanhamshire/GriefPrevention/GriefPrevention.java

@@ -22,6 +22,7 @@ import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Calendar;
+import java.util.Collection;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
@@ -2349,10 +2350,9 @@ public class GriefPrevention extends JavaPlugin
 	public void onDisable()
 	{ 
 		//save data for any online players
-		Player [] players = this.getServer().getOnlinePlayers();
+		Collection<Player> players = (Collection<Player>)this.getServer().getOnlinePlayers();
-		for(int i = 0; i < players.length; i++)
+		for(Player player : players)
 		{
-			Player player = players[i];
 			UUID playerID = player.getUniqueId();
 			PlayerData playerData = this.dataStore.getPlayerData(playerID);
 			this.dataStore.savePlayerDataSync(playerID, playerData);

src/me/ryanhamshire/GriefPrevention/PlayerEventHandler.java

@@ -20,6 +20,7 @@ package me.ryanhamshire.GriefPrevention;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
+import java.util.Collection;
 import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
@@ -405,10 +406,9 @@ class PlayerEventHandler implements Listener
 			
 			String logMessage = logMessageBuilder.toString();
 			
-			Player [] players = GriefPrevention.instance.getServer().getOnlinePlayers();
+			Collection<Player> players = (Collection<Player>)GriefPrevention.instance.getServer().getOnlinePlayers();
-			for(int i = 0; i < players.length; i++)
+			for(Player player : players)
 			{
-				Player player = players[i];
 				if(player.hasPermission("griefprevention.eavesdrop") && !player.getName().equalsIgnoreCase(args[1]))
 				{
 					player.sendMessage(ChatColor.GRAY + logMessage);
@@ -563,12 +563,12 @@ class PlayerEventHandler implements Listener
 						GriefPrevention.AddLogEntry("Auto-banned " + player.getName() + " because that account is using an IP address very recently used by banned player " + info.bannedAccountName + " (" + info.address.toString() + ").");
 						
 						//notify any online ops
-						Player [] players = GriefPrevention.instance.getServer().getOnlinePlayers();
+						Collection<Player> players = (Collection<Player>)GriefPrevention.instance.getServer().getOnlinePlayers();
-						for(int k = 0; k < players.length; k++)
+						for(Player otherPlayer : players)
 						{
-							if(players[k].isOp())
+							if(otherPlayer.isOp())
 							{
-								GriefPrevention.sendMessage(players[k], TextMode.Success, Messages.AutoBanNotify, player.getName(), info.bannedAccountName);
+								GriefPrevention.sendMessage(otherPlayer, TextMode.Success, Messages.AutoBanNotify, player.getName(), info.bannedAccountName);
 							}
 						}
 						

src/me/ryanhamshire/GriefPrevention/SecureClaimTask.java

@@ -18,6 +18,8 @@
  
  package me.ryanhamshire.GriefPrevention;
 
+import java.util.Collection;
+
 import org.bukkit.entity.Player;
 
 //secures a claim after a siege looting window has closed
@@ -41,10 +43,9 @@ class SecureClaimTask implements Runnable
 			claim.doorsOpen = false;
 			
 			//eject bad guys
-			Player [] onlinePlayers = GriefPrevention.instance.getServer().getOnlinePlayers();
+			Collection<Player> onlinePlayers = (Collection<Player>)GriefPrevention.instance.getServer().getOnlinePlayers();
-			for(int j = 0; j < onlinePlayers.length; j++)
+			for(Player player : onlinePlayers)
 			{
-				Player player = onlinePlayers[j];
 				if(claim.contains(player.getLocation(), false, false) && claim.allowAccess(player) != null)
 				{
 					GriefPrevention.sendMessage(player, TextMode.Err, Messages.SiegeDoorsLockedEjection);