Improved packet handling

src/main/java/net/minecraft/server/NetworkManager.java

@@ -105,7 +105,8 @@ public class NetworkManager {
                 flag = true;
             }
 
-            if (this.z-- <= 0 && !this.o.isEmpty() && (this.f == 0 || System.currentTimeMillis() - ((Packet) this.o.get(0)).timestamp >= (long) this.f)) {
+            // CraftBukkit - add 'flag'
+            if ((!flag || this.z-- <= 0) && !this.o.isEmpty() && (this.f == 0 || System.currentTimeMillis() - ((Packet) this.o.get(0)).timestamp >= (long) this.f)) {
                 object = this.g;
                 synchronized (this.g) {
                     packet = (Packet) this.o.remove(0);

src/main/java/net/minecraft/server/Packet.java

@@ -69,6 +69,11 @@ public abstract class Packet {
         int i;
 
         try {
+            // CraftBukkit start - sleep while nothing to do
+            while(datainputstream.available() <= 0) {
+                Thread.sleep(10);
+            }
+            // CraftBukkit end
             i = datainputstream.read();
             if (i == -1) {
                 return null;
@@ -97,6 +102,10 @@ public abstract class Packet {
             System.out.println("Connection reset");
             return null;
         }
+        catch (InterruptedException exception) {
+            System.out.println("Thread exception");
+            return null;
+        }
         // CraftBukkit end
 
         PacketCounter packetcounter = (PacketCounter) e.get(Integer.valueOf(i));