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NullPointerException when trying to use GetDefaultState().WithProperty

Javisel
in Modder Support

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Posted

Due to the recommendations of some modders on the Modded Minecraft discord i've moved from initializing my items and blocks in class to making Object Holders and initializing them in Registration.

After this change however, any block with an IProperty that has getDefaultState invoked will produce a nullpointerexception and I have no idea why. Currently I have a workaround by initializing them in class again but this defeats the purpose of moving to object holders. 

Example Crash

`

Block Registration Class
 

  • Quote
    Quote
    1. Caused by: java.lang.NullPointerException
    2.     at com.teamcitrus.fruitsforagingandfarming.common.blocks.CropCornBottom.updateTick(CropCornBottom.java:142) ~[CropCornBottom.class:?]

    Any reason you decided not to show your CropCornBottom class?

    Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

     

    Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

     

    DO NOT PM ME WITH PROBLEMS. No help will be given.

  • Quote
    59 minutes ago, Javisel said:

    After this change however, any block with an IProperty that has getDefaultState invoked will produce a nullpointerexception and I have no idea why.

    Because your block fields are not getting initialized by the ObjectHolder system. Aka the registry names you've given them dont match the field names you have.

     

    IE. CROP_CORN_TOP does not equal corn_crop_top.

    VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

    I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

    Forge and vanilla BlockState generator.

  • Quote
    • Author
    48 minutes ago, Draco18s said:

    Any reason you decided not to show your CropCornBottom class?

    Here it is. ForgeForums wouldn't let me post more then two links, sorry

     

     

    12 minutes ago, Animefan8888 said:

    Because your block fields are not getting initialized by the ObjectHolder system. Aka the registry names you've given them dont match the field names you have.

     

    IE. CROP_CORN_TOP does not equal corn_crop_top.


    I lower cased it to perfectly match it's registry name and it still doesn't function. Same error.

  • Quote
    13 minutes ago, Javisel said:

    Same error.

    Look at the order of the words. It doesnt care about capitalization in your field name. 

    VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

    I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

    Forge and vanilla BlockState generator.

  • Quote
    • Author
    20 hours ago, Animefan8888 said:

    Look at the order of the words. It doesnt care about capitalization in your field name. 

    ah, dumb mistake. It works now. thanks.

  • Quote

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