ServerBooster v3.0.2

Hotfix: Hopper Furnace Behavior + Stability Patches

• Paid version (not required, it’s only to support the project); you get direct access to the version.
  https://builtbybit.com/resources/serverbooster.92479/updates

Hopper Optimizer Fix

• Fixed: Hoppers below furnaces were pulling fuel and input items instead of only pulling from the output slot (vanilla behavior)
• Now correctly respects vanilla slot restrictions for all special containers:
  • Furnace / Blast Furnace / Smoker: Only pulls from output slot (slot 2)
  • Brewing Stand: Only pulls from potion slots (0-2), not fuel or ingredient slots
  • Chests, Barrels, etc: Unchanged, pulls from all slots

Additional Fixes (included from v3.0.1 patch cycle)

Critical Memory Leaks Fixed

• Lag machine detector stored direct chunk references preventing garbage collection
• Plugin coroutine scope died after /reload, silently breaking background tasks
• VillagerOptimizer copied ALL world entities every 30 seconds instead of only villagers

Exploit Patches

• Piston bypass: Players could push limited blocks with pistons to bypass block placement limits
• Explosion bypass: TNT/creeper explosions destroyed tracked blocks without updating the limiter

Performance

• ChunkBlockLimiter: 1,400x faster block placement checks (was scanning 1.44M blocks per event)
• HopperOptimizer: No longer scans all loaded chunks every 8 ticks, uses a hopper registry instead
• VillagerOptimizer: Pre-computes player positions instead of expensive entity searches per villager
• NMS Reflection: Cached field lookups that previously ran on every entity tick

VillagerOptimizer

• Only affects villagers with a profession (traders). Normal villagers and Nitwits are ignored
• Stuck timer no longer resets when players are nearby
• First check runs 1 second after startup instead of 30 seconds
• EntityOptimizer no longer accidentally re-enables AI on lobotomized villagers

Bug Fixes

• Elytra riptide config was never read due to a typo in the config key
• /sb info now shows all 12 modules instead of 8
• maxItemsPerTransfer config option now actually works
• Block physics detector world list updates on /sb reload
• Physics warning threshold corrected from mislabeled nanoseconds to event count
• Chunk key collisions fixed for negative coordinates
• Particle effects now work on 1.20.5+ (name changes handled)
• Block tracking file save is now crash-safe (atomic file operations)
• Auto-save no longer loses dirty flags due to race condition
• Block tracking data properly cleaned from memory on world unload
• Despawned item UUIDs no longer leak memory in the hologram system

Technical Info

• Java: 17+
• Platforms: Paper, Spigot
• Versions: 1.17.x - 1.21.x