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.