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  1. Minecraft: Java Edition
  2. MC-98727

Server: Entering a boat/minecart/horse while going upwards from jumping causes a kick for flying

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    • Icon: Bug Bug
    • Resolution: Fixed
    • 22w03a
    • Minecraft 1.9, Minecraft 1.9.1 Pre-Release 3, Minecraft 1.9.1, Minecraft 1.9.2, Minecraft 1.10.2, Minecraft 16w36a, Minecraft 1.11.1, Minecraft 1.11.2, Minecraft 1.12, Minecraft 1.12.1 Pre-Release 1, Minecraft 1.12.1, Minecraft 1.12.2, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w12b, Minecraft 19w13b, Minecraft 1.14, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 1, Minecraft 1.14.2 Pre-Release 2, Minecraft 1.14.2, Minecraft 1.14.3, Minecraft 1.14.4 Pre-Release 1, Minecraft 1.14.4 Pre-Release 3, Minecraft 1.14.4 Pre-Release 4, Minecraft 1.14.4 Pre-Release 5, Minecraft 1.14.4 Pre-Release 6, 1.14.4, 19w34a, 19w35a, 19w36a, 19w37a, 19w38b, 19w39a, 19w40a, 19w41a, 19w42a, 19w45b, 19w46b, 1.15 Pre-release 1, 1.15 Pre-Release 2, 1.15 Pre-release 3, 1.15 Pre-release 4, 1.15 Pre-release 5, 1.15 Pre-release 6, 1.15 Pre-release 7, 1.15, 1.15.1, 1.15.1 Pre-release 1, 1.15.2 Pre-Release 1, 1.15.2 Pre-release 2, 1.15.2, 20w06a, 20w07a, 20w08a, 20w09a, 20w10a, 20w11a, 20w13a, 20w13b, 20w15a, 20w17a, 20w18a, 20w19a, 20w20a, 20w20b, 20w21a, 1.16 Pre-release 3, 1.16 Pre-release 8, 1.16 Release Candidate 1, 1.16, 1.16.1, 20w28a, 20w30a, 1.16.2 Pre-release 1, 1.16.2 Release Candidate 1, 1.16.2 Release Candidate 2, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4 Pre-release 1, 1.16.4 Pre-release 2, 1.16.4 Release Candidate 1, 1.16.4, 20w46a, 20w48a, 20w51a, 21w03a, 1.16.5, 21w05a, 21w05b, 21w06a, 21w07a, 21w11a, 21w14a, 1.17 Pre-release 2, 1.17, 21w40a, 1.18, 1.18.1
    • Confirmed
    • Entities, Player
    • Important

      The bug

      So on a multiplayer server, if you jump off the ground and then right click on a ridable entity like for example a horse before landing you will get kicked from the server for flying too long and in the server log you will see a message such as:

      [17:54:58] [Server thread/WARN]: Jobe was kicked for floating too long!

      Code analysis

      Based on 1.11.2 decompiled using MCP 9.35 rc1

      The server does not reset the field net.minecraft.network.NetHandlerPlayServer.floating when a player starts riding an entity even though it is tracking floating with the field net.minecraft.network.NetHandlerPlayServer.vehicleFloating there and because the floating field can only be set to false by the part of the method net.minecraft.network.NetHandlerPlayServer.processPlayer(CPacketPlayer) which runs if the player is not riding an entity the value remains true.

        1. crash-2016-03-02_21.15.33-client.txt
          59 kB
        2. MC-98727.png
          MC-98727.png
          4 kB

            timurn [Mojang] Timur Nazarov
            jeuvke Jeuv
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              Created:
              Updated:
              Resolved:
              CHK: