Solved Error when check if helmet = null

Discussion in 'Plugin Development' started by RFUDEO9EH, Mar 6, 2020.

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    RFUDEO9EH

    code : https://pastebin.com/8xHWrqUi

    when I try to verify if helmet = null (nothing), it's doesn't work I don't no why but if I replace null by a block or a diamond helmet for exemple the plugin work correctly. I try so some thing like .equals(null), != null but nothing work. I use Java-SE 1.8 and the version of my server is 1.7.10
     
    RFUDEO9EH, Mar 6, 2020
    #1
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    timtower Administrator Administrator Moderator

    @RFUDEO9EH Don't use getType(), then you are expecting that there is an item already.
     
    timtower, Mar 6, 2020
    #2
  3. Offline

    RFUDEO9EH

    don't work
     
    RFUDEO9EH, Mar 6, 2020
    #3
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    timtower Administrator Administrator Moderator

    What is the updated code?
     
    timtower, Mar 6, 2020
    #4
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    RFUDEO9EH

    I just change this :

    if(p2.getInventory().getHelmet() != null){

    and I try too :

    if(p2.getInventory().getHelmet() == null){

    and :


    if(p2.getInventory().getHelmet().equals(null){
     
    RFUDEO9EH, Mar 6, 2020
    #5
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    caderapee

    caderapee, Mar 6, 2020
    #6
  7. Offline

    RFUDEO9EH

    don't work
     
    RFUDEO9EH, Mar 6, 2020
    #7
  8. Offline

    Kars

    Start printing and figure out what the value is.
     
    Kars, Mar 6, 2020
    #8
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    Strahan

    It doesn't return air when there is no helmet; it returns null.

    Post the whole code, because if(p2.getInventory().getHelmet() != null){ will fix it. If it isn't working, something else is awry.
     
    Strahan, Mar 7, 2020
    #9
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    RFUDEO9EH

    https://pastebin.com/Wwrvy3tm
     
    RFUDEO9EH, Mar 7, 2020
    #10
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    timtower Administrator Administrator Moderator

    You are first checking the type for TNT, then you do a null check.
    Code order is important.
    Stack trace will also tell which line is causing the error, can be used to narrow the problem down to a single place
     
    timtower, Mar 7, 2020
    #11
  12. Offline

    RFUDEO9EH

    SOLVED TY
     
    RFUDEO9EH, Mar 7, 2020
    #12
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