Plugin Development

Need help developing a plugin? Got a bug you can't squash? Ask in here!

  1. Resources

    Useful resources for developers, like tutorials and guides, etc.
    Discussions:
    1,525
    Messages:
    30,225
    Latest: Flat File Generic Save/Load ForbiddenSoul, Dec 31, 2020
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  2. WIP and Development Status

    Works in progress and status of plugins being ported can be found here.
    Discussions:
    995
    Messages:
    15,462
    Latest: Work in Progress Plugins CodeVyxis, Mar 21, 2018
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  1.   » Sticky Threads
  2. DrBowe
    Locked Sticky

    How to read stack-traces, and troubleshoot your own plugins (by yourself)

    DrBowe, Aug 19, 2011 ... 2 3
    Replies:
    74
    Views:
    115,809
    XzKNIGHTzX
    Aug 13, 2014
  3. Dinnerbone
    Locked Sticky

    ChunkGenerators & BlockPopulators FAQ

    Dinnerbone, Jun 23, 2011 ... 3 4 5
    Replies:
    145
    Views:
    92,427
    minelazz
    Jul 25, 2014
  4. mbaxter
    Locked Sticky

    Common Mistakes

    mbaxter, Sep 12, 2012 ... 5 6 7
    Replies:
    192
    Views:
    57,736
    bdubz4552
    Sep 17, 2014
  5. EvilSeph
    Locked Sticky

    Oops, I didn't break your plugins - ambiguous getHealth()

    EvilSeph, Jul 1, 2013 ... 2
    Replies:
    58
    Views:
    51,917
    ChipDev
    Jul 11, 2014
  6. EvilSeph
    Locked Sticky

    On namespaces - please do NOT use *.bukkit in your plugins.

    EvilSeph, Feb 8, 2011 ... 2 3 4
    Replies:
    99
    Views:
    51,740
    Dudemister1999
    Oct 27, 2014
  7. Zombie_Striker
    Locked Sticky

    [READ ME FIRST] How to make a Plugin Development Thread

    Zombie_Striker, Nov 30, 2015 ... 2
    Replies:
    30
    Views:
    16,979
    MasterDoctor
    Mar 18, 2016
  8. Forge_User_45064837
    Locked Sticky

    Marking threads as Solved/Filled

    Forge_User_45064837, Mar 22, 2015 ... 2
    Replies:
    42
    Views:
    15,822
    I Al Istannen
    Sep 17, 2016
  9.   » Normal Threads
  10. Starrk
    Locked

    [Citizens] Pre-installed Skins

    Starrk, Jun 23, 2011 ... 2 3
    Replies:
    70
    Views:
    297,415
    Scaryman441
    Aug 6, 2014
  11. Forge_User_99411586
    Locked

    Testing for players location - thats not my thread. Can someone delete it?

    Forge_User_99411586, Apr 11, 2017
    Replies:
    0
    Views:
    289,349
    Erumeldor
    Apr 11, 2017
  12. Dinnerbone
    Locked

    Permissions FAQ

    Dinnerbone, Jul 7, 2011 ... 11 12 13
    Replies:
    378
    Views:
    266,665
    Necrodoom
    Jun 11, 2014
  13. FluffyNarwhals
    Locked

    Disable Mob Spawning Naturally In A World

    FluffyNarwhals, May 25, 2013
    Replies:
    15
    Views:
    185,509
    Puntherline
    Jul 15, 2014
  14. TeyKey1
    Locked

    Solved The type java.util.Map$Entry cannot be resolved.

    TeyKey1, Jun 20, 2014
    Replies:
    9
    Views:
    122,925
    ferrago
    Jun 23, 2014
  15. kag359six
    Locked

    Can someone explain permissions and how to set them?

    kag359six, Jun 29, 2012
    Replies:
    12
    Views:
    118,552
    Digi
    Jun 30, 2012
  16. Father Of Time
    Locked

    Printing special characters [♠, ♣, ♥, ♦] in chat...

    Father Of Time, Apr 24, 2012 ... 2
    Replies:
    43
    Views:
    110,801
    caldabeast
    Jun 2, 2012
  17. Forge_User_62502025
    Locked

    Best way to check if a String is a UUID

    Forge_User_62502025, Apr 18, 2014
    Replies:
    7
    Views:
    104,154
    xTrollxDudex
    Oct 23, 2014
  18. Quackster
    Locked

    List of all Bukkit events.

    Quackster, Jun 15, 2012
    Replies:
    2
    Views:
    90,021
    Quackster
    Jun 15, 2012
  19. asdfaf11
    Locked

    [Solved] Java problem? Unsupported major.minor version 51.0

    asdfaf11, Dec 30, 2011
    Replies:
    13
    Views:
    89,873
    gablank
    Feb 23, 2012
  20. Forge_User_97019416
    Locked

    Example plugin.yml

    Forge_User_97019416, Jan 20, 2012 ... 2
    Replies:
    41
    Views:
    82,218
    Marium0505
    May 31, 2013
  21. Forge_User_36160002
    Locked

    Solved Delete all player data (as if he had never played)

    Forge_User_36160002, Feb 14, 2013
    Replies:
    4
    Views:
    82,025
    Goty_Metal
    Feb 14, 2013
  22. LucasEmanuel
    Locked

    Solved Trying to find fairly balanced item price list

    LucasEmanuel, May 16, 2013
    Replies:
    10
    Views:
    81,599
    LucasEmanuel
    Jul 29, 2013
  23. AstramG
    Locked

    Right Click with item event?

    AstramG, May 1, 2012
    Replies:
    22
    Views:
    78,982
    ChunkMe
    May 9, 2014
  24. HugoYip
    Locked

    CoreProtect: Is it possible to use /co rollback without rollback-ing entity?

    HugoYip, Aug 5, 2018
    Replies:
    0
    Views:
    67,496
    HugoYip
    Aug 5, 2018
  25. SnowGears
    Locked

    [SOLVED] Teleporting to the nether and the end with no portals

    SnowGears, Aug 13, 2012
    Replies:
    24
    Views:
    65,040
    SnowGears
    Aug 16, 2012
  26. leet4044
    Locked

    Solved java.lang.NumberFormatException: For input string: "Game"

    leet4044, Aug 24, 2013
    Replies:
    14
    Views:
    62,943
    leet4044
    Aug 24, 2013
  27. Techtony96
    Locked

    Solved Restarting Server

    Techtony96, Oct 24, 2012
    Replies:
    21
    Views:
    62,173
    D3stinia
    Feb 17, 2014
  28. Panda_Crafter
    Locked

    Solved java.lang.Long cannot be cast to java.lang.Integer

    Panda_Crafter, Jul 29, 2016
    Replies:
    16
    Views:
    59,622
    Panda_Crafter
    Jul 29, 2016
  29. williamtdr
    Locked

    Solved Teleport the Player

    williamtdr, Oct 3, 2012
    Replies:
    11
    Views:
    57,429
    Geekhellmc
    Jul 13, 2014
  30. Forge_User_62729289
    Locked

    Plugin Development - A HUGE tutorial!

    Forge_User_62729289, Apr 29, 2011 ... 8 9 10
    Replies:
    282
    Views:
    56,093
    teetor
    Jun 4, 2012
  31. _MrDanya_
    Locked

    Solved keySet() error

    _MrDanya_, Aug 10, 2019
    Replies:
    1
    Views:
    54,782
    timtower
    Aug 19, 2019
  32. Tauryuu
    Locked

    Run a console command in a plugin?

    Tauryuu, Jan 7, 2012
    Replies:
    13
    Views:
    54,356
    gummby8
    Feb 11, 2012
  33. skipperguy12
    Locked

    Solved [SQL] - How do I INSERT INTO if not exists?

    skipperguy12, Jan 11, 2013
    Replies:
    8
    Views:
    53,880
    skipperguy12
    Jan 11, 2013
  34. XDemonic25
    Locked

    Add Potion Effect

    XDemonic25, Feb 25, 2012
    Replies:
    13
    Views:
    53,153
    WaywardGeek
    Aug 24, 2013
  35. gregroberti
    Locked

    [SOLVED] Caused by: java.util.ConcurrentModificationException

    gregroberti, Jul 3, 2012
    Replies:
    5
    Views:
    52,278
    gregroberti
    Jul 3, 2012
  36. PDKnight
    Locked

    Solved MySQL - No operations allowed after connection closed error

    PDKnight, Jan 1, 2015
    Replies:
    6
    Views:
    52,211
    PDKnight
    Jan 1, 2015
  37. iZanax
    Locked

    Solved Howto Give Dyed Leather Armour?

    iZanax, Oct 28, 2012
    Replies:
    23
    Views:
    51,135
    roughtoast
    Jul 25, 2013
  38. Requadin
    Locked

    Making a Countdown Timer

    Requadin, Aug 30, 2012
    Replies:
    18
    Views:
    51,098
    ionre
    Apr 7, 2014
  39. MattexFilms
    Locked

    Convert Ticks into Minutes/Seconds?

    MattexFilms, Sep 20, 2012
    Replies:
    5
    Views:
    50,380
    -_Husky_-
    Sep 20, 2012
  40. nir
    Locked

    How to create YML file

    nir, May 18, 2012
    Replies:
    15
    Views:
    49,499
    iPoke111
    Feb 23, 2014
  41. BizeaxPvP
    Locked

    getting command args in event

    BizeaxPvP, Aug 10, 2019
    Replies:
    6
    Views:
    49,175
    Machine Maker
    Aug 12, 2019
  42. KaiBB
    Locked

    Convert String (PlayerName) to Player?

    KaiBB, Feb 15, 2012 ... 2
    Replies:
    35
    Views:
    47,051
    Bubelbub
    Jan 14, 2013
  43. cdnyassuo34
    Locked

    Solved %something% but only the %s is checked

    cdnyassuo34, Aug 13, 2019
    Replies:
    19
    Views:
    46,991
    DerDonut
    Aug 13, 2019
  44. TheGamesHawk2001
    Locked

    Special Characters *Double Arrow*

    TheGamesHawk2001, Nov 6, 2014
    Replies:
    23
    Views:
    46,812
    CheesyFreezy
    Feb 6, 2015
  45. arkaman
    Locked

    Getting Started with Java & Making Plugins for Minecraft

    arkaman, Jan 27, 2011
    Replies:
    23
    Views:
    46,559
    5dys
    Aug 5, 2014
  46. EvilSeph
    Locked

    Discussion: Oops, I broke your plugins!

    EvilSeph, Jan 17, 2011 ... 8 9 10
    Replies:
    282
    Views:
    46,308
    GeekPlaya
    Feb 3, 2013
  47. Izz9
    Locked

    How do i use Vault?

    Izz9, Feb 14, 2012
    Replies:
    14
    Views:
    46,125
    quaz3l
    Feb 16, 2012
  48. Forge_User_42331429
    Locked

    Eclipse & eGit: can't push to GitHub

    Forge_User_42331429, Jan 4, 2012
    Replies:
    11
    Views:
    45,747
    Bone008
    Jan 6, 2012
  49. EvilSeph
    Locked

    Oops, I broke your plugins!

    EvilSeph, Jan 15, 2011 ... 2
    Replies:
    35
    Views:
    45,368
    mbaxter
    Dec 5, 2012
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