Changelog

[1.4] — 2026-06-15

Fixed boots notification at full durability. Armor notifications now fire only when at least one worn armor piece is actually below the configured threshold. Previously the title, action bar, and cooldown were triggered unconditionally after the armor loop, causing boots (or any armor in slot 0) to send a notification on every hit even at 100 % durability.

Per-category durability thresholds. Settings.Categories lets you set a different Percentage and Enabled flag for each category — Tools, Armor, and Elytra — independently of each other.
Per-material item overrides. Settings.ItemOverrides.<MATERIAL> lets you override the threshold (or disable notifications entirely) for any specific item. Overrides beat the category setting, which beats the global fallback.
/toolsnotifier reload command. Reloads config.yml from disk without a server restart. Requires the toolsnotifier.reload permission (default: op). Aliases: /tn reload, /toolnotifier reload.

Replaced deprecated ItemStack.getDurability() with the modern Damageable meta API. Values are now correct for all 1.21 items.
Replaced deprecated getItemInHand() with getInventory().getItemInMainHand().
Cooldown keys are now stored by UUID instead of player name, preventing stale entries after a rename.
Sound parsing has a try/catch with a descriptive console warning instead of a silent crash when the configured sound name is invalid.
All eight listeners reordered null/AIR/durability checks to eliminate NPE crashes on edge-case events.
Updated to Spigot/Paper API 1.21.4, Java 21.
Added 46 automated unit and integration tests (MockBukkit + JUnit 5 + Mockito).

Full code refactor targeting Spigot 1.21 / Java 21.
Removed dead code (Data.java).
Added Utils.capitalizeFully, getDamage, getRemainingDurability, isBelowThreshold helpers.