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  • getTrade().contains(boolean, int, int)


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    when you first open a trade interface and there is nothing in trade it will give you a NPE. If you add an item to the trade then it starts working properly.

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    7 hours ago, Hashtag said:

    What is the exact code statement you use?

    if(!context.getTrade().contains(true, itemsList.getList().get(itemId), itemId))

    I first thought that my itemsList throws the NPE but after checking it multiple times it seems that is the contains methods.

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