v1.4.0 — Minor Performance and Stability Issues Fixxed

Spawn v1.4.0 — Minor Performance and Stability Issues Fixxed

Performance Improvements

Sound Caching

• Sound lookups (Registry.SOUNDS + NamespacedKey parsing) are now cached in a
  ConcurrentHashMap<String, Optional<Sound>> via computeIfAbsent()
• Previously, every countdown tick per player triggered a full Registry lookup
• Invalid/empty sound names are also cached to avoid repeated parse attempts
• Cache is automatically cleared on /spawnreload

Display Name Caching

• Tab-completion display names are now cached in a volatile List<String>
  instead of re-sorting the entire map on every keystroke
• Cache is invalidated automatically on setSpawn() / deleteSpawn()

Stability Improvements

Async DB Error Handling

• dbExecutor.execute() tasks for save() and delete() are now wrapped in
  try-catch(Exception) with full stack trace logging via log.log(Level.SEVERE, ..., e)
• Previously, any RuntimeException thrown in async DB tasks was silently
  swallowed by the ExecutorService

Memory Leak Fixes

UpdateChecker Lifecycle Management

• HttpClient and ExecutorService converted from static fields to instance
  fields with proper shutdown() method
• shutdown() is called from SpawnPlugin.onDisable() before SpawnManager shutdown
• Fixes: ClassLoader/thread leak on plugin reload — static threads and
  HttpClient previously survived class unloading

Sound Cache Cleanup

• SoundUtil.clearCache() called on both /spawnreload and plugin disable

Code Safety

Abstract Read Methods in AbstractLocationManager

• exists(), getNames(), getDisplayNames(), getLocation(), getDisplayName()
  are now abstract instead of concrete DB-query implementations
• Forces subclasses to provide cache-backed implementations
• Prevents: Accidental synchronous DB access on main/region thread
  (MSPT spikes, Folia threading violations)

Files Changed

File	Change
SoundUtil.java	Added ConcurrentHashMap sound cache + clearCache()
UpdateChecker.java	Static → instance fields, added shutdown()
SpawnPlugin.java	Lifecycle management for UpdateChecker + SoundUtil
AbstractLocationManager.java	Read methods → abstract
SpawnManager.java	Async error handling + displayNames caching
ReloadCommand.java	Call SoundUtil.clearCache() on reload

Compatibility

• Folia-safe: All changes maintain thread safety
• Config: No config format changes — drop-in upgrade from v1.3.0

v1.3.0 — Performance & Modernization Update

Spawn v1.3.0 — Performance & Modernization Update

Performance

• Spawn lookups are now instant (O(1)) — all reads served from an in-memory
  ConcurrentHashMap cache instead of hitting the database.
• Async database writes — setting or deleting spawns no longer blocks the
  main server thread.
• Bulk-load at startup — all spawns are loaded into cache once during
  plugin initialization.

Reliability

• Fixed shutdown order — SpawnManager now flushes pending writes before the
  database connection is closed.
• Null-safety — world references are validated before saving locations,
  preventing potential NPEs.
• Spawn name validation — names are now validated against
  ^[a-zA-Z0-9_-]{1,32}$ to prevent invalid entries.
• Proper interrupt handling in UpdateChecker — no more swallowed
  InterruptedExceptions.

Internal Improvements

• Migrated all message components from raw() → component() for proper
  Adventure API color rendering.
• SpawnCommand cooldown tracking simplified from ConcurrentHashMap<UUID, Boolean>
  to Set<UUID>.
• UpdateChecker now uses a static reusable HttpClient and a dedicated
  ExecutorService.
• ConfigUtil delegates to Bukkit's built-in getInt() instead of manual parsing.

v1.2.1 - Initial Release

Spawn v1.2.1 — Initial Release

A lightweight Folia-native spawn plugin with SQLite database storage.

Features

• Multiple Spawns — Create and manage multiple named spawn points
• Folia Support — Fully compatible with Folia-based servers
• SQLite Storage — Persistent spawn storage using SQLite database
• Teleport Delay — Configurable teleport countdown with cancel-on-move
• Teleport Sounds — Configurable sounds for teleporting, countdown, and errors
• Update Checker — Automatic update notifications via GitHub or Modrinth
• Customizable Messages — Full message configuration with MiniMessage support

Commands

Command	Description
/spawn [name]	Teleport to a spawn point
/setspawn <name>	Set a new spawn point
/delspawn <name>	Delete a spawn point
/spawnreload	Reload the configuration

Requirements

• Java 21+
• Folia 1.21.x