Delay initial ping sent to the client

Spigot-Server-Patches/revert-serverside-behavior-of-keepalives.patch

@@ -17,9 +17,18 @@ from networking or during connections flood of chunk packets on slower clients,
  at the cost of dead connections being kept open for longer.
 
 diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
-index 869a2b402..167e386c8 100644
+index 869a2b402..284db9b9e 100644
 --- a/src/main/java/net/minecraft/server/PlayerConnection.java
 +++ b/src/main/java/net/minecraft/server/PlayerConnection.java
+@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
+     private final MinecraftServer minecraftServer;
+     public EntityPlayer player;
+     private int e;
+-    private long f; private void setLastPing(long lastPing) { this.f = lastPing;}; private long getLastPing() { return this.f;}; // Paper - OBFHELPER
++    private long f = getCurrentMillis(); private void setLastPing(long lastPing) { this.f = lastPing;}; private long getLastPing() { return this.f;}; // Paper - OBFHELPER - set ping to delay initial
+     private boolean g; private void setPendingPing(boolean isPending) { this.g = isPending;}; private boolean isPendingPing() { return this.g;}; // Paper - OBFHELPER
+     private long h; private void setKeepAliveID(long keepAliveID) { this.h = keepAliveID;}; private long getKeepAliveID() {return this.h; };  // Paper - OBFHELPER
+     // CraftBukkit start - multithreaded fields
 @@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
      private int receivedMovePackets;
      private int processedMovePackets;