Ars Nouveau

Ars Nouveau

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[Crash] NullPointerException in Ars Nouveau Spellbook GUI - Rendering Tooltip (MC 1.21.1, AN 5.9.1)

Root-DE opened this issue ยท 0 comments

commented

Minecraft Version: 1.21.1
NeoForge Version: 21.1.185
Ars Nouveau Version: 5.9.1
(

Minecraft Crash Report.txt

All the Mods 10: 10.4.2)
Relevant Ars Nouveau Addons Present:

  • ars_elemental 0.7.4.1
  • ars_elemancy 1.8
  • not_enough_glyphs 4.2.1.0
  • ars_technica 2.2.2
    (see full modlist in crash log)

Describe the Crash:
When opening the Ars Nouveau Spellbook GUI (or while rendering a spellbook tooltip), my game immediately crashes with a NullPointerException. The stack trace points to the spell construction (Spell.<init>(Spell.java:77)), with the error message: NullPointerException: at index 3. It appears to be caused by a null entry in a list when copying elements (Guava ImmutableList), likely due to missing or corrupted spell or glyph data.
I did not find any other reports of this exact crash on the tracker.

What I Have Tried:

  • Searched existing issues and could not find similar reports.
  • Verified that all Ars Nouveau core/addon mods are up to date.
  • Reviewed modlist for possible conflicts but found nothing obvious.

Steps to Reproduce:

  1. Open Ars Nouveau Spellbook GUI (or hover over a spell tooltip).
  2. Game crashes immediately with NullPointerException.

Relevant Section of Crash Log:

java.lang.NullPointerException: at index 3
at MC-BOOTSTRAP/[email protected]/com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:232)
at MC-BOOTSTRAP/[email protected]/com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:265)
at TRANSFORMER/[email protected]/com.hollingsworth.arsnouveau.api.spell.Spell.<init>(Spell.java:77)
at TRANSFORMER/[email protected]/com.hollingsworth.arsnouveau.client.gui.book.GuiSpellBook.getClientImageTooltip(GuiSpellBook.java:865)
...

Full crash log attached.

Expected Behavior:
The spellbook GUI and tooltips should render even if bad or missing spell data is present, without crashing the game.

Additional Notes:

  • The crash happens on my world/save every time this GUI is opened.
  • If further information is needed, please advise.

Attachments:

  • Crash log file

Thank you for your support and for developing Ars Nouveau!