ZRestart

Lightweight Paper-only auto-restart scheduler for Minecraft Java 26.x.

ZRestart schedules native Bukkit.restart() calls, broadcasts configurable countdown warnings across chat, title, boss bar, and sound, and gives admins full manual control — with every player, admin, and console-facing message exposed in messages.yml. Built specifically for Paper 26.x and Java 25+, with no legacy version baggage.

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Why ZRestart

• Paper 26.x-first. No compatibility shims for old API versions. Lean codebase targeting the current Paper API directly.
• Familiar schedule format. Uses DAY;HOUR;MINUTE[;REASON] entries that any experienced admin will recognize on sight.
• Real timezone handling. IANA timezone IDs with proper DST gap/overlap behavior and a configurable fallback timezone.
• Atomic reload. A broken config never breaks the plugin — ZRestart keeps the previous valid runtime if a reload fails.
• Versioned configs with automatic migration. Adds new keys on plugin updates, preserves your customizations, and saves timestamped backups before any rewrite.
• Restart-script diagnostic. Detects unsafe Bukkit.restart() setups on startup and warns you, so a "restart" doesn't silently become a "stop."
• Public read-only API for other plugins to query restart state and trigger start/stop programmatically.

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Features

⏱️ Scheduling

• Automatic restart scheduling using Daily or weekday entries (DAY;HOUR;MINUTE[;REASON])
• Manual restart countdowns: /zrestart now <interval> [reason]
• Live delay and cancel: /zrestart delay <interval> and /zrestart stop
• Flexible interval formats: 30m, 1:30, 3600, 1h 30m, and more

📢 Warnings

• Four channels: chat, title, boss bar, sound — all driven from one shared warning list
• Per-warning sound entries with configurable sound name, category, volume, pitch
• Boss bar with configurable color, overlay, progress, and show-from threshold
• Player title popups when manual restarts are scheduled or pending restarts are cancelled

⚙️ Configuration & reliability

• Full MiniMessage support alongside legacy & color codes
• Configurable timezone with DST gap/overlap handling and fallback timezone
• Versioned config.yml and messages.yml with automatic schema migration
• Timestamped backups before any auto-update rewrite (config.yml.bak-YYYYMMDD-HHMMSS)
• Atomic reload — keeps the previous valid runtime config if a reload fails
• Startup diagnostic for unsafe Bukkit.restart() setups
• Tab-completion for subcommands, intervals, and configured reasons
• Unit tests covering parser, scheduler, warnings, and reload paths

🔌 Integration

• Public read-only API exposing manual + automatic restart state and start/stop triggers
• Optional pre-restart console commands with CONTINUE or ABORT failure behavior
• Soft PlaceholderAPI integration for player-bound messages
• Attempts player and world saves before restart

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Use cases

• Daily or weekly automated maintenance restarts on a fixed schedule
• One-off manual restarts for hotfixes, plugin reloads, or emergency maintenance
• Network-wide synchronized restarts using a shared timezone configuration
• Running pre-restart commands (backups, save-all, broadcasts, kicks, webhook triggers) before every restart
• Showing countdown warnings through any combination of chat, title, boss bar, and sound

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Pre-restart commands — flexible by design

ZRestart doesn't hardcode behaviors like kicking players or skipping empty restarts. The pre-restart commands section lets you run any console commands in sequence before the restart fires:

pre-restart-commands:
  enabled: true
  failure-behavior: CONTINUE
  commands:
    - "save-all"
    - "kick @a Server restarting"
    - "broadcast See you in 30 seconds!"

Set failure-behavior: ABORT to cancel the restart if any command fails.

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Commands

Command	Description	Permission
/zrestart	Show help	zrestart.time
/zrestart time	Show active or next scheduled restart status	zrestart.time
/zrestart now <interval> [reason]	Start a manual restart countdown	zrestart.admin
/zrestart delay <interval>	Delay the active countdown	zrestart.admin
/zrestart stop	Cancel the active countdown	zrestart.admin
/zrestart reload	Reload config.yml and messages.yml	zrestart.reload

Permissions

Node	Default	Allows
zrestart.time	true	/zrestart and /zrestart time
zrestart.admin	op	Manual now / delay / stop
zrestart.reload	op	Config and message reload

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Requirements

• Paper 26.1.2+
• Java 25+
• (Optional) PlaceholderAPI 2.12.2+ for placeholder support in player-bound messages

Installation

1. Drop ZRestart.jar into your server's plugins/ folder.
2. Start the server once so config.yml and messages.yml generate.
3. Confirm spigot.yml has a valid settings.restart-script.
4. Edit plugins/ZRestart/config.yml for schedules, channels, timezone, and pre-restart commands.
5. Edit plugins/ZRestart/messages.yml for all user-facing text.
6. Run /zrestart reload after config changes.

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Scope

ZRestart is intentionally focused. It does not support:

• Spigot, Folia, Velocity, BungeeCord, or any proxy software
• Minecraft versions older than 26.x
• A ZRestart PlaceholderAPI expansion (it consumes placeholders, doesn't expose its own)
• Hardcoded player-kick or skip-empty-server logic — handled flexibly through pre-restart commands instead

Bukkit.restart() requires a properly configured settings.restart-script in spigot.yml. ZRestart will warn you on startup if this looks misconfigured.

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Links & support

• Source code: https://github.com/Zenologia/ZRestart
• Issue tracker: https://github.com/Zenologia/ZRestart/issues
• BuiltByBit: https://builtbybit.com/resources/zrestart.106058/
• Author site: https://zenologiamc.com

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Built and maintained by Zenologia.