BKCommonLib
BKCommonLib is no longer being updated on dev.bukkit.org.
If you want to use the latest version, use spigot.
Latest version: 1.57
CraftBukkit/SportBukkit/Spigot/MCPC+ build: CB 1.6.4 R1.0 / CB 1.6.4 R2.1 / Spigot 1.7
Older builds available: CB 1.5.2-R1.0 / CB 1.6.2-R1.0
Tekkit: Untested and thus unsupported, some features may not work as expected
Description
This utility library shares all the common code needs for various plugins, and having them in one library heavily reduces the amount of duplicated code. The featured utilities are varied, and whenever something is missing in Bukkit, it is added in BKCommonLib. This is one of the reasons why it has become this large: there are simply a lot of things Bukkit doesn't (want to) offer.
BKCommonLib has versioning on a per-plugin basis, so when a certain plugin needs version 2, and version 1 is installed, the server owner is automatically notified and the plugin is not enabled. This prevents the common mishaps with outdated BKCommonLib versions.
Other than utilities and services, this library offers a wide variety of reflection and user-friendly ways of accessing net.minecraft.server. If your plugin requires the use of the internals, but do not want to risk changing field and method names, you can depend on BKCommonLib to provide them for you. This allows you to remain compatible between CraftBukkit versions automatically, and reduces silent failure hazards.
Reasons for you to depend on this library
- You need to access Minecraft internals in your plugin, and Bukkit has no API for it
- You are tired of re-uploading the same version over again because of the internals changing
- You want to work with Vector/math logic, or need to use other utility classes
- The YAML of Bukkit dislikes you, and you want this to be easier
- You want to easily read and write configuration/data files
- You want easy access to data conversion utilities to convert user input
- You want to work with inventories in an advanced fashion
- You want to work with unique server events
- You want to alter entity behaviour (such as handling block collisions, custom movement, etc.)
- You want plugin messages/permissions to be configurable
- You want to work with (async)tasks without storing IDs
- You want to send and manipulate packets
Features
- General
- PluginBase for easy access to metrics, permissions, localization and more
- Permission defaults for storing the permissions a plugin uses
- Localization for making the messages of a plugin configurable
- Utilities
- General utilities for String, Logic, BlockFace and Math operations
- Block utilities for Block-related operations (states, data, etc.)
- ItemUtil for Inventory, Items and Item Transfer utilities
- RecipeUtil to work with crafting and furnace recipes
- Various Collections for auto-filtering, converting and even interpolation
- Data storage
- Configuration API with nodes, headers and other goodies
- NBT API designed after the configuration API
- (Compressed)DataReader/DataWriter to read and write data from/to file
- Entities
- CommonEntity implementations with added utilities
- EntityController for altering entity behaviour
- EntityNetworkController for altering entity network logic
- Services
- Metrics for keeping track of plugin statistics
- Conversion for conversions between all types of data
- Events and Listeners to keep track of changes on the server
- Packet services and API to keep track of packets
- Task class for easier task scheduling
- Scoreboard services to setup scoreboards without criteria
- Tab View service to alter what is shown when players press tab
Getting started
To start using BKCommonLib, you have two options (after adding BKCommonLib as dependency in the plugin.yml):
Include the jar file as a dependency
Like any dependency, keep the jar file somewhere on your computer and add it to your classpath. Nothing special here.
Make a (new) maven project and include it
Add the following repository:
<repository> <id>dj-tcraft repository</id> <url>http://ci.dj-tcraft.nl/plugin/repository/everything/</url> </repository>
And the following dependency (may need to update version):
<dependency> <groupId>com.bergerkiller.bukkit</groupId> <artifactId>BKCommonLib</artifactId> <version>1.54-SNAPSHOT</version> <scope>provided</scope> </dependency>
Dependencies BKCommonLib uses
BKCommonLib supports various other plugins and projects. Below all of these are listed:
- Vault - for permission plugin support
- ProtocolLib - to avoid packet listening conflicts
- Showcase(Standalone) - to ignore showcased items
- HyperConomy - to ignore shop items
- BleedingMobs - to ignore particles
- CGLib - for generating nms.Entity classes on-the-fly to supply Entity Controllers
- Objenesis - for generating classes without calling constructors (needed for various fixes inside class constructors)
Plugins that require BKCommonLib to be installed:
Disclaimer
This plugin utilises Hidendra's plugin metrics system, which means that the following information is collected and sent to mcstats.org:
- A unique identifier
- The server's version of Java
- Whether the server is in offline or online mode
- The plugin's version
- The server's version
- The OS version/name and architecture
- The core count for the CPU
- The number of players online
- The Metrics version Opting out of this service can be done by editing plugins/Plugin Metrics/config.yml and changing opt-out to true.
License
This library uses an open license. Feel free to use whatever code you need from it, you do not have to ask me either. If you want me to add certain features, that is fine too. Everyone is allowed to use this Library as a dependency. I do recommend extending 'PluginBase' instead of 'JavaPlugin' then, as it allows you to automatically deal with the BKCommonLib versioning checks. See also: BKCommonLib license file
This product includes software developed by the Apache Software Foundation (http://www.apache.org/)
Links:
Compatibility
BKCommonLib supports ProtocolLib when it is enabled, but if it is not, the player connection is replaced resulting in several incompatibilities. To fix these incompatibility issues, install ProtocolLib next to BKCommonLib. This can not be stressed enough. When incompatibility occurs, BKCommonLib will notify you in the console and will disable itself. The following plugins are known to be incompatible when ProtocolLib is NOT installed:
Metrics
This plugin sends server count and dependency statistics to MCStats.org. You can (globally) opt out in the PluginMetrics/config.yml file.
Banner
I use a banner in my depending plugins. This banner is automatically updated when a new version of BKCommonLib is out. It is a quick and efficient way to keep track of updates for this library. This was needed, too, because a lot of people were using outdated BKCommonLib versions, which resulted in bug reports...too many of them. And I do not want to waste your time with invalid reports. You have a plugin that uses BKCommonLib? Feel free to use the banner on your download page.
[[http://dev.bukkit.org/bukkit-plugins/bkcommonlib/|{{http://ci.dj-tcraft.nl/job/BKCommonLib/lastSuccessfulBuild/artifact/target/BKCommonLibVersion.png|Go to the BKCommonLib Dev-bukkit page}}]]







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Posted Jun 26, 2013@N1T3SLAY3R Just...read this now. Yeah, overwriting the plugin jar files while the server is running can DEFINITELY cause this issue. It's called 'hot-swapping plugins', and even if you don't reload, it eventually results in classes no longer being found. You should never overwrite plugin files that are still being used by the plugin. Close the server or disable the plugin beforehand.
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Posted Jun 26, 2013@AmicusMCS Your issue has now been fixed in the latest dev-build.
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Posted Jun 25, 2013@bergerkiller
I tested it on several versions, some from a while back. I have no clue what people are doing right now, but I envision that they are experiencing this travesty and trying to cope with it sans going insane.
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Posted Jun 25, 2013@AmicusMCS Thanks, I will look into this right away. This is the latest BKCommonLib dev-build I presume? (doesn't matter that much, there were no big changes that could have caused it)
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Posted Jun 25, 2013@bergerkiller
I usually use MyWorlds, but I tested without it. There were no plugins using BKCommonLib when the issue occurred and it only happens when BKCommonLib is running.
Edit: The plugin is unusable like this.
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Posted Jun 25, 2013@AmicusMCS I noticed something similar before and I am trying to find out what is causing it. What plugins are you running that use BKCommonLib?
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Posted Jun 24, 2013@bergerkiller
When BKCommonLib is running on my server (running the latest release of Spigot, if it matters), worlds do not save on shutdown and all block changes are undone. When BKCommonLib is disabled, everything runs properly.
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Posted Jun 24, 2013@bergerkiller
Thank you
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Posted Jun 24, 2013@Matt19901 You need the development build of BKCommonLib. Official build is for MC 1.5.1.
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Posted Jun 24, 2013Hey, I get this errors using this plugin and My Worlds http://pastebin.com/uYsC8wT5
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Posted Jun 24, 2013@N1T3SLAY3R Then I do not know why it's happening. All I can think of is that your jar file is corrupted, re-downloading might help. I also made some changes so it will pre-load the classes your error mentioned missing, to protect them against reloads.
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Posted Jun 21, 2013@pcatack
i do use /stop, and i've never used /reload. do plugins get auto-reloaded when i use file transfer with them? Because that's the only thing that i can think of that's causing this issue
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Posted Jun 21, 2013/reload comand is really inefficient in bukkit. Normally people use /stop and start server.
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Posted Jun 20, 2013Baked a new libigot server, threw in protocollib, and it does not let me on.
04:20:01 [SEVERE] java.lang.ClassCastException net.minecraft.server.DedicatedSe
rverConnection cannot be cast to org.spigotmc.MultiplexingServerConnection
error comes up. No plugins installed. Just libigot 1.52 rb and lastest protocollib.
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Posted Jun 20, 2013i know ive NEVER used the /reload command, the closest thing to that, that i use is other plugins specific reload (for configs), and ive never used nolaggs reload either
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Posted Jun 20, 2013@N1T3SLAY3R The /reload command always reloads all plugins. /reload NoLagg does not work and reloads all plugins instead. If you wish to load/unload/reload a single plugin, you'll need to install a plugin to do so.
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Posted Jun 19, 2013wait so do u mean dont use /reload for any plugin? i thought i was just not supposed to use it on bkcommonlib or nolagg.
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Posted Jun 19, 2013@N1T3SLAY3R Stop using /reload to update plugins - the Bukkit class loader does not like that at all.
I will add changes to get it fixed, but really, /reload messes up more than it's good for. Memory leaks being one main reason not to use it.
EDIT
And I did.
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Posted Jun 19, 2013New join error D;
http://dev.bukkit.org/bukkit-plugins/bkcommonlib/tickets/26-new-random-error/
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Posted Jun 19, 2013@Simonsigge Development build is, but I'm waiting with bringing it out until I'm sure issues existing in TrainCarts are not caused by BKCommonLib. Someone has severe memory issues over several hours, and I can't allow that in an official build.
Note that all features in BKCommonLib turn on and off based on plugin demand, so when not running TrainCarts, there is no risk. So far I tracked it down to network controllers, which only TrainCarts uses.