Fix keepalive time interval (#10690)

patches/server/0158-revert-serverside-behavior-of-keepalives.patch

@@ -17,7 +17,7 @@ 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/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
-index 8cc454ad3f6b865253bdd4902fbf19fc4a3e4a7f..b8b22a2b140b4d757add6eefa562d32430fb7424 100644
+index 8cc454ad3f6b865253bdd4902fbf19fc4a3e4a7f..a0dc17702fb6c8c96f262bc917624a46a40920fa 100644
 --- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
 +++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
 @@ -68,7 +68,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
@@ -49,8 +49,8 @@ index 8cc454ad3f6b865253bdd4902fbf19fc4a3e4a7f..b8b22a2b140b4d757add6eefa562d324
  
 -        if (!this.isSingleplayerOwner() && i - this.keepAliveTime >= 25000L) { // CraftBukkit
 -            if (this.keepAlivePending) {
-+        if (!this.isSingleplayerOwner() && elapsedTime >= KEEPALIVE_LIMIT) { // Paper - check keepalive limit, don't fire if already disconnected
-+            if (this.keepAlivePending && !this.processedDisconnect) { // Paper
++        if (!this.isSingleplayerOwner() && elapsedTime >= 15000L) { // Paper - use vanilla's 15000L between keep alive packets
++            if (this.keepAlivePending && !this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // Paper - check keepalive limit, don't fire if already disconnected
                  this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
 -            } else if (this.checkIfClosed(i)) {
 +            } else if (this.checkIfClosed(currentTime)) { // Paper

patches/server/0558-Add-PlayerKickEvent-causes.patch

@@ -95,7 +95,7 @@ index d1caaecfdfba1cdeba032f0bc38c06541fa61633..6468b3a25c7527a2fde6899e4812b5cb
                      i++;
                  }
 diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
-index 2872bef40440b11a206c3ec88e2c6d95cd1a72e9..dde1d3850af610241e1f76a194efe1a58dc96bd5 100644
+index 661765a9fe1c2e49299262190501ee3b3294a2f1..7659a3f50f5a90814dc7331ea00d6251dcf32600 100644
 --- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
 +++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
 @@ -127,7 +127,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
@@ -154,8 +154,8 @@ index 2872bef40440b11a206c3ec88e2c6d95cd1a72e9..dde1d3850af610241e1f76a194efe1a5
      protected void keepConnectionAlive() {
 @@ -249,7 +249,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
  
-         if (!this.isSingleplayerOwner() && elapsedTime >= KEEPALIVE_LIMIT) { // Paper - check keepalive limit, don't fire if already disconnected
-             if (this.keepAlivePending && !this.processedDisconnect) { // Paper
+         if (!this.isSingleplayerOwner() && elapsedTime >= 15000L) { // Paper - use vanilla's 15000L between keep alive packets
+             if (this.keepAlivePending && !this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // Paper - check keepalive limit, don't fire if already disconnected
 -                this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
 +                this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
              } else if (this.checkIfClosed(currentTime)) { // Paper
@@ -486,7 +486,7 @@ index f472dea0bd4f834c0c8f0aa59ae7cdae082b14af..2fa51c3a70f43cd23b8f494fc643d66c
      }
  }
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index 6100e2313a86f9baca136a178cc30d4adc5cae53..1cbf70e8f238a3e67f27d86b9f685d5303fa5527 100644
+index dc8e6a4e62cc094300d20a057720b51b31c40b56..62a95876b01f1a8065c67bc844fe53920074fc57 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 @@ -633,7 +633,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {