$ java -jar spongevanilla-1.8.9-3.1.0-BETA-246.jar -Xmx=1024M
2016-02-15 21:30:13,059 WARN Disabling terminal, you're running in an unsupported environment.
[21:30:13 WARN] [Sponge]: Found unrecognized command line option(s): [-Xmx=1024M]
[21:30:13 INFO] [Sponge]: Initializing Sponge...
[21:30:13 INFO] [Sponge]: De-obfuscation mappings are provided by MCP (http://www.modcoderpack.com)
[21:30:13 INFO] [Sponge]: Searching for plugins...
[21:30:13 INFO] [Sponge]: 1 plugin(s) found
[21:30:13 INFO] [mixin]: SpongePowered MIXIN Subsystem Version=0.5.1 Source=file:/P:/Cours/Web%20services/Projets/Ikkacraft/spongepur/spongevanilla-1.8.9-3.1.0-BETA-246.jar Env=UNKNOWN
[21:30:13 INFO] [mixin]: Compatibility level set to JAVA_8
[21:30:13 INFO] [Sponge]: Initialization finished. Starting Minecraft server...
[21:30:19 WARN] [mixin]: Method overwrite conflict for checkBiomeBounds in mixins.common.core.json:world.MixinWorld_Tracker, previously written by org.spongepowered.common.mixin.core.world.MixinWorld. Skipping method.
[21:30:19 WARN] [mixin]: Method overwrite conflict for checkBlockBounds in mixins.common.core.json:world.MixinWorld_Tracker, previously written by org.spongepowered.common.mixin.core.world.MixinWorld. Skipping method.
[21:30:19 INFO]: Starting minecraft server version 1.8.9
[21:30:19 WARN]: To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
[21:30:19 INFO] [Sponge]: Loading Sponge...
[21:30:21 INFO] [Sponge]: Loading plugins...
[21:30:21 INFO] [Sponge]: Loaded plugin: IkkaNomy 1.0 (from mods\ikkaNomy-1.0-SNAPSHOT.jar)
[21:30:21 INFO] [Sponge]: Initializing plugins...
[21:30:21 INFO]: Loading properties
[21:30:21 INFO]: Default game type: SURVIVAL
[21:30:21 INFO]: Generating keypair
[21:30:21 INFO]: Starting Minecraft server on *:25565
[21:30:21 INFO]: Using default channel type
[21:30:21 INFO] [Sponge]: Successfully loaded and initialized plugins.
[21:30:21 INFO]: Preparing level "world"
[21:30:21 WARN] [Sponge]: Multi-world capability has been disabled via [allow-nether] in [server.properties]. All dimensions besides [world}] will be skipped.
[21:30:21 INFO] [Sponge]: Checking for worlds that need to be migrated...
[21:30:21 INFO] [Sponge]: No worlds were found in need of migration.
[21:30:21 INFO] [Sponge]: Loading dimension 0 (IkkaWorld) (DedicatedServer)
[21:30:21 INFO]: Preparing start region for level 0 (IkkaWorld)
[21:30:22 INFO]: Preparing start region for level 0 (IkkaWorld)
[21:30:22 INFO] [IkkaNomy]: IkkaNomy a recu l'instruction start
[21:30:22 INFO]: Done (0,547s)! For help, type "help" or "?"
[21:30:22 INFO] [Sponge]: Timings Reset