Massive Core
❰❰ MassiveCraft on Bukkit ❱❱
MassiveCore | Factions | CreativeGates | Vampire
MassiveBooks | MassiveHat | MassiveTickets
❰❰ Full Documentation ❱❱
Documentation
❰❰ Techy Things ❱❱
GitHub | Report a Bug
What is MassiveCore?
MassiveCore is a Bukkit plugin that contains components the MassiveCraft developers use for developing other Bukkit plugins:
- ItemStack and Inventory serialization
- Commands
- Plugin Integration
- Data storage with JSON
- Disc IO
- … and much more …
Install
- Stop your server.
- Put MassiveCore.jar in your plugins folder.
- Start your server again.
Plugins Using MassiveCore
Internet Connections
MassiveCore sends anonymous usage statistics to bstats.org when your server starts and downloads the latest sponsor configuration file from massivecraft.com hourly. You can disable these internet connections by setting "metricsEnabled" and "sponsorEnabled" to false at the very bottom of the main configuration file.
Official Server

Join in and play with us on the official Factions RPG Minecraft Server!







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Posted Nov 15, 2013when i added mcore 6.9 or higher it removes all essentials commands such as /spawn .. when i remove it all the commands are back , anyone else having this issue
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Posted Nov 14, 2013errr, it says build 6.9.1 adds compatability, but it still does not work. Using MCPC+ build 130.
Am i missing something?
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Posted Nov 14, 201308:49:03 [SEVERE] Could not load 'plugins\mcore.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError : com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j ava:184) at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager. java:306) at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager .java:230) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugins(CraftServer.ja va:245) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.reload(CraftServer.java:61 6) at org.bukkit.Bukkit.reload(Bukkit.java:277) at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java: 24) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:19 2) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServe r.java:532) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchServerCommand(Craf tServer.java:519) at net.minecraft.server.v1_6_R3.DedicatedServer.as(DedicatedServer.java: 276) at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:2 41) at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:4 83) at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java :415) at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:5 83) Caused by: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader .java:80) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader. java:53) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j ava:173) ... 14 more
This is what happend when I try to use it :l can anyone help me?
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Posted Nov 13, 2013MCore will not load and it says it is not up to date, but it is the current one (6.9.0) and the craftbukkit.jar is the newest recommended build. I am not having any problems with other plugins loading, solely ones that work with MCore. (Factions, Creative Gates, Vampire, Massive Tickets and Massive Books.) Here is the error. If anyone has any clue how to fix it, I would really appreciate it.
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Posted Nov 13, 2013@Cayorion
I cant seem to get it working with spigot 1.7 dev either... mind telling us your set up? I get an "Unsupported major.minor version 51.0" error when I try to run it.
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Posted Nov 13, 2013Some more documentation for this plugin would be appreciated
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Posted Nov 13, 2013Bukkit command map can be anything, not just SimpleCommandMap.
You should check it before doing something with it.
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Posted Nov 12, 2013@clawx207
Could be fixed by the MCPC+ people since the issue is on their side of the software.
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Posted Nov 7, 2013@Theonlymongi
Both work fine in spigot 1.7.2
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Posted Nov 1, 2013Mcore doesn't seem to be working with 1.7.2 Unsupported Spigot Builds. I believe this is the cause of Factions not working with 1.7.2. Would be nice for a 1.7.2 Mcore dev build to be released. Thanks!
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Posted Oct 28, 2013This plugin doesn't load on an 1.6.4 MCPC+ forge server. Cant do facitons, nor towny. Could this possibly be fixed?
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Posted Oct 20, 20132013-10-20 12:11:34 [INFO] [mcore] Disabling mcore v6.6.0 2013-10-20 12:11:34 [SEVERE] at java.net.DualStackPlainSocketImpl.configureBlocking(Native Method) 2013-10-20 12:11:34 [SEVERE] at java.net.DualStackPlainSocketImpl.socketAccept(Unknown Source) 2013-10-20 12:11:34 [SEVERE] at java.net.AbstractPlainSocketImpl.accept(Unknown Source) 2013-10-20 12:11:34 [SEVERE] at java.net.PlainSocketImpl.accept(Unknown Source) 2013-10-20 12:11:34 [SEVERE] at java.net.ServerSocket.implAccept(Unknown Source) 2013-10-20 12:11:34 [SEVERE] at java.net.ServerSocket.accept(Unknown Source) 2013-10-20 12:11:34 [SEVERE] at me.neatmonster.spacebukkit.PanelListener.run(PanelListener.java:158) 2013-10-20 12:11:34 [INFO] [mcore 6.6.0] Disabled
Basic socket error, pls fix that. Not a big deal, just fix it :D
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Posted Oct 19, 2013i get a error in the console unsuported major miner version i am using multicraft with a hosting website. somebody please help
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Posted Oct 18, 2013Hi my friends and i are all starting a public server but there is one problem, we need mcore and it does not seem to work with mac, we have installed windows 7, compiled the plugins we have done everything, and it works on my windows computer, though my friend is hosting it.. i have sent the error log so please someone message me back with a fix thanks for everything i appreciate it soo much! Error Log: SEVERE] Could not load 'plugins/mcore.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
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Posted Oct 18, 2013@therealwolfy9
You mat be having a java problem. Do you have java 7? i believe that might help
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Posted Oct 17, 2013@therealwolfy9
Make sure if mcore plugin is installed or not!
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Posted Oct 15, 2013@therealwolfy9
@GamerLewot
I have the same problem but I used 1.6.4 and it still had the same problem! What are tickets?
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Posted Oct 13, 2013@therealwolfy9
Next time please use a ticket. (its got a nice little button)
It looks like your using a version of bukkit that is not compatible with the version of mcore. or you have corrupt your mcore file. Is factions throwing the same error?
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Posted Oct 11, 201319:52:53 [SEVERE] Could not load 'plugins/mcore.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184) at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305) at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugins(CraftServer.java:239) at org.bukkit.craftbukkit.v1_6_R3.CraftServer.<init>(CraftServer.java:217) at net.minecraft.server.v1_6_R3.PlayerList.<init>(PlayerList.java:56) at net.minecraft.server.v1_6_R3.DedicatedPlayerList.<init>(SourceFile:11) at net.minecraft.server.v1_6_R3.DedicatedServer.init(DedicatedServer.java:107) at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:393) at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583) Caused by: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:249) at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ... 9 more
FIX THAT^^^^^^^
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Posted Oct 10, 2013This plugin isn't working for me and I really need it to run factions. ,_,