Paper/nms-patches/ScoreboardServer.patch

--- a/net/minecraft/server/ScoreboardServer.java
+++ b/net/minecraft/server/ScoreboardServer.java
@@ -21,7 +21,7 @@
     public void handleScoreChanged(ScoreboardScore scoreboardscore) {
         super.handleScoreChanged(scoreboardscore);
         if (this.b.contains(scoreboardscore.getObjective())) {
-            this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardScore(scoreboardscore));
+            this.sendAll(new PacketPlayOutScoreboardScore(scoreboardscore));
         }
 
         this.b();
@@ -29,13 +29,13 @@
 
     public void handlePlayerRemoved(String s) {
         super.handlePlayerRemoved(s);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardScore(s));
+        this.sendAll(new PacketPlayOutScoreboardScore(s));
         this.b();
     }
 
     public void a(String s, ScoreboardObjective scoreboardobjective) {
         super.a(s, scoreboardobjective);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardScore(s, scoreboardobjective));
+        this.sendAll(new PacketPlayOutScoreboardScore(s, scoreboardobjective));
         this.b();
     }
 
@@ -45,7 +45,7 @@
         super.setDisplaySlot(i, scoreboardobjective);
         if (scoreboardobjective1 != scoreboardobjective && scoreboardobjective1 != null) {
             if (this.h(scoreboardobjective1) > 0) {
-                this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardDisplayObjective(i, scoreboardobjective));
+                this.sendAll(new PacketPlayOutScoreboardDisplayObjective(i, scoreboardobjective));
             } else {
                 this.g(scoreboardobjective1);
             }
@@ -53,7 +53,7 @@
 
         if (scoreboardobjective != null) {
             if (this.b.contains(scoreboardobjective)) {
-                this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardDisplayObjective(i, scoreboardobjective));
+                this.sendAll(new PacketPlayOutScoreboardDisplayObjective(i, scoreboardobjective));
             } else {
                 this.e(scoreboardobjective);
             }
@@ -66,7 +66,7 @@
         if (super.addPlayerToTeam(s, s1)) {
             ScoreboardTeam scoreboardteam = this.getTeam(s1);
 
-            this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, Arrays.asList(new String[] { s}), 3));
+            this.sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, Arrays.asList(new String[] { s}), 3));
             this.b();
             return true;
         } else {
@@ -76,7 +76,7 @@
 
     public void removePlayerFromTeam(String s, ScoreboardTeam scoreboardteam) {
         super.removePlayerFromTeam(s, scoreboardteam);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, Arrays.asList(new String[] { s}), 4));
+        this.sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, Arrays.asList(new String[] { s}), 4));
         this.b();
     }
 
@@ -88,7 +88,7 @@
     public void handleObjectiveChanged(ScoreboardObjective scoreboardobjective) {
         super.handleObjectiveChanged(scoreboardobjective);
         if (this.b.contains(scoreboardobjective)) {
-            this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardObjective(scoreboardobjective, 2));
+            this.sendAll(new PacketPlayOutScoreboardObjective(scoreboardobjective, 2));
         }
 
         this.b();
@@ -105,19 +105,19 @@
 
     public void handleTeamAdded(ScoreboardTeam scoreboardteam) {
         super.handleTeamAdded(scoreboardteam);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 0));
+        this.sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 0));
         this.b();
     }
 
     public void handleTeamChanged(ScoreboardTeam scoreboardteam) {
         super.handleTeamChanged(scoreboardteam);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 2));
+        this.sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 2));
         this.b();
     }
 
     public void handleTeamRemoved(ScoreboardTeam scoreboardteam) {
         super.handleTeamRemoved(scoreboardteam);
-        this.a.getPlayerList().sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 1));
+        this.sendAll(new PacketPlayOutScoreboardTeam(scoreboardteam, 1));
         this.b();
     }
 
@@ -166,6 +166,7 @@
 
         while (iterator.hasNext()) {
             EntityPlayer entityplayer = (EntityPlayer) iterator.next();
+            if (entityplayer.getBukkitEntity().getScoreboard().getHandle() != this) continue; // CraftBukkit - Only players on this board
             Iterator iterator1 = list.iterator();
 
             while (iterator1.hasNext()) {
@@ -198,6 +199,7 @@
 
         while (iterator.hasNext()) {
             EntityPlayer entityplayer = (EntityPlayer) iterator.next();
+            if (entityplayer.getBukkitEntity().getScoreboard().getHandle() != this) continue; // CraftBukkit - Only players on this board
             Iterator iterator1 = list.iterator();
 
             while (iterator1.hasNext()) {
@@ -221,4 +223,14 @@
 
         return i;
     }
+
+    // CraftBukkit start - Send to players
+    private void sendAll(Packet packet) {
+        for (EntityPlayer entityplayer : (List<EntityPlayer>) this.a.getPlayerList().players) {
+            if (entityplayer.getBukkitEntity().getScoreboard().getHandle() == this) {
+                entityplayer.playerConnection.sendPacket(packet);
+            }
+        }
+    }
+    // CraftBukkit end
 }