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[19:49:13] [Server thread/INFO]: [ProtocolSupport] Loading ProtocolSupport v4.23
[19:49:13] [Server thread/INFO]: [ProtocolSupport] Allocator: PooledByteBufAllocator(directByDefault: true), direct: true
[19:49:13] [Server thread/INFO]: [ProtocolSupport] Compression level: 3
[19:49:13] [Server thread/WARN]: java.lang.NoClassDefFoundError: net/minecraft/server/v1_9_R2/PacketListener
[19:49:13] [Server thread/WARN]:    at protocolsupport.protocol.pipeline.initial.InitialPacketDecoder.<clinit>(InitialPacketDecoder.java:39)
[19:49:13] [Server thread/WARN]:    at protocolsupport.ProtocolSupport.onLoad(ProtocolSupport.java:32)
[19:49:13] [Server thread/WARN]:    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:297)
[19:49:13] [Server thread/WARN]:    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:198)
[19:49:13] [Server thread/WARN]:    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:524)
[19:49:13] [Server thread/WARN]:    at java.lang.Thread.run(Unknown Source)
[19:49:13] [Server thread/WARN]: Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_9_R2.PacketListener
[19:49:13] [Server thread/WARN]:    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91)
[19:49:13] [Server thread/WARN]:    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)
[19:49:13] [Server thread/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[19:49:13] [Server thread/WARN]:    at java.lang.ClassLoader.loadClass(Unknown Source)
[19:49:13] [Server thread/WARN]:    ... 6 more