Null Attribute Remover

# NullAttributeRemover A lightweight Bukkit/Spigot plugin that scans and removes **broken** or **invalid attribute modifiers** from players to prevent crashes and instability. Originally created to fix `java.lang.NullPointerException` in corrupted player data. ## 🔍 What It Does This plugin scans player attributes for: - ❌ `null` or duplicate UUIDs (even across attributes) - ❌ `NaN` or `Infinity` values - ❌ Invalid or missing operations - ❌ `null`, blank, or UUID-looking modifier names - ❌ Fully broken modifiers (null entries) If any are found, they’re **removed automatically**. The scan can be triggered manually or on events like teleport, respawn, world change, etc. ## ⚙️ How It Works - Checks every attribute on a player (`GENERIC_MAX_HEALTH`, etc.) - Inspects each modifier’s: - UUID validity and uniqueness - Name validity (including if it looks like a UUID) - Value sanity (no `NaN`, `Infinity`, or zero junk) - Operation type - If any part is broken or suspicious, it’s removed - If a modifier’s UUID is reused in multiple places, all duplicates are removed - Optional logs and messages are configurable ## 🔧 Configuration ```yaml # config.yml silent: false # Suppresses player chat messages kickOnFailure: true # Kick player if bad modifiers can’t be removed log-to-console: true # Show scan results in console log-to-file: true # Save scan logs to plugins/NullAttributeRemover/nar.log logUUIDLikeNames: true # Warn if modifier name looks like a UUID log-invalid-uuid-names: true # If false, suppress logs like "Skipped bad UUID: armor.boots" debugLogs: true # Enable detailed internal debug logs ``` ## 📦 Commands | Command | Description | |--------|-------------| | `/nar scan ` | Scan a specific player or all online players | | `/nar debug <player>` | Injects broken modifiers for testing purposes | | `/nar reset <player>` | Clears all attributes and resets them to vanilla | > The plugin uses tab completion for all commands. ## 🧪 Compatibility - Requires **Java 17 or newer** - Works with **Minecraft 1.17+** - Designed for **Paper**, may also work on Spigot and forks