Massive Core
❰❰ MassiveCraft on Bukkit ❱❱
MassiveCore | Factions | CreativeGates | Vampire
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Documentation
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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 Mar 23, 2014Please update to 1.7.5 PLease!!
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Posted Mar 23, 2014@Bumbleboy92
Yup that is caused by 1.7.5 . Contact me on skype and I can send you a working mcore for 1.7.5
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Posted Mar 23, 2014Probably because it won't work with 1.7.5, but I still wanna see if it's something else...
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Posted Mar 23, 2014@scotynau
Contact me on skype: arnofrutos , I can help you with that
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Posted Mar 22, 2014Don't work on Craftbukkit 1.7.5
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Posted Mar 17, 2014doesnt work on 1.7.2 hm :/
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Posted Mar 12, 2014is this 1.7.2?
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Posted Apr 29, 2014The newest version is for 1.7.5
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Posted Mar 12, 2014Im having a problem with people being able to use factions in the SMP world i have a per worldplugin set up but Mcore overrides this....Is there any other solution for this.
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Posted Mar 10, 2014I have uninstalled ad reinstalled java MANY time but i get the same results. is it the way I am doing it. here are my steps PLEASE CORRECT ME!
1. uninstall java by moving the java applet to the trash. 2. download java 7 at the following website Java Download 51 3. Restart server. 4. Cry because it didn't work.
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Posted Mar 10, 2014I have a problem
I have Mac Mini and Java 7 update 51 on it. The plugin doesn't work! Plz help.
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Posted Mar 9, 2014I have had the same problem for EVER! I am using a mac and I have java 7. (#mac ftw) well anyway here is my error:
[21:21:16 ERROR]: 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:131) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:350) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:312) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] Caused by: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) [?:1.6.0_65] at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) [?:1.6.0_65] at java.lang.ClassLoader.defineClass(ClassLoader.java:621) [?:1.6.0_65] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) [?:1.6.0_65] at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) [?:1.6.0_65] at java.net.URLClassLoader.access$000(URLClassLoader.java:58) [?:1.6.0_65] at java.net.URLClassLoader$1.run(URLClassLoader.java:197) [?:1.6.0_65] at java.security.AccessController.doPrivileged(Native Method) [?:1.6.0_65] at java.net.URLClassLoader.findClass(URLClassLoader.java:190) [?:1.6.0_65] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at java.lang.ClassLoader.loadClass(ClassLoader.java:306) [?:1.6.0_65] at java.lang.ClassLoader.loadClass(ClassLoader.java:247) [?:1.6.0_65] at java.lang.Class.forName0(Native Method) [?:1.6.0_65] at java.lang.Class.forName(Class.java:249) [?:1.6.0_65] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:40) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks] ... 9 more
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Posted Mar 8, 2014MCore disables the Plugin Levels! What can I do?
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Posted Mar 4, 2014A Mac Mini actually makes an excellent and relatively inexpensive little dedicated server. It's a shame we can't seem to use your plugins on one. Is this a Java 7 issue, or something deeper? Any suggestions on a work-around?
Thank you!
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Posted Mar 2, 2014@lst96
I know ... I have java 7 installed in my Computer but the error comes out ... can you help me ? thank you
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Posted Mar 2, 2014@Cayorion
Someone said that mcore stopped replacing the commandmap is this true?
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Posted Mar 2, 2014@samuelpapu
Your using java 6, you need to use java 7 to use mcore.
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Posted Mar 2, 2014I have this error ... can you help me please ? thanks
[20:53:36 ERROR]: 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:137) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:313) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:236) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:350) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:312) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] Caused by: java.lang.UnsupportedClassVersionError: com/massivecraft/mcore/MCore : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) [?:1.6.0_65] at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) [?:1.6.0_65] at java.lang.ClassLoader.defineClass(ClassLoader.java:621) [?:1.6.0_65] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) [?:1.6.0_65] at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) [?:1.6.0_65] at java.net.URLClassLoader.access$000(URLClassLoader.java:58) [?:1.6.0_65] at java.net.URLClassLoader$1.run(URLClassLoader.java:197) [?:1.6.0_65] at java.security.AccessController.doPrivileged(Native Method) [?:1.6.0_65] at java.net.URLClassLoader.findClass(URLClassLoader.java:190) [?:1.6.0_65] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at java.lang.ClassLoader.loadClass(ClassLoader.java:306) [?:1.6.0_65] at java.lang.ClassLoader.loadClass(ClassLoader.java:247) [?:1.6.0_65] at java.lang.Class.forName0(Native Method) [?:1.6.0_65] at java.lang.Class.forName(Class.java:249) [?:1.6.0_65] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:40) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] ... 9 more [20:53:36 ERROR]: Could not load 'plugins/CreativeGates.jar' in folder 'plugins' org.bukkit.plugin.UnknownDependencyException: mcore at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:201) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:350) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:312) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks] at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
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Posted Feb 28, 2014@NathanTheDragon
I just tested http://dev.bukkit.org/bukkit-plugins/perworldplugins/files/15-per-world-plugins-v1-1-2/ It's broken just fine on it's own accord. Has nothing to do with MCore.
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Posted Feb 25, 2014Perworldplugins support? Please issue this ASAP :(