[11:53:00] [Server thread/INFO]: Preparing level "world"
[11:53:00] [Server thread/INFO]: Registered command debug with permission node vanilla.command.debug
[11:53:00] [Server thread/INFO]: Registered command spreadplayers with permission node vanilla.command.spreadplayers
[11:53:00] [Server thread/INFO]: Registered command playsound with permission node vanilla.command.playsound
[11:53:00] [Server thread/INFO]: Registered command scoreboard with permission node vanilla.command.scoreboard
[11:53:00] [Server thread/INFO]: Registered command achievement with permission node vanilla.command.achievement
[11:53:00] [Server thread/INFO]: Registered command summon with permission node vanilla.command.summon
[11:53:00] [Server thread/INFO]: Registered command setblock with permission node vanilla.command.setblock
[11:53:00] [Server thread/INFO]: Registered command testforblock with permission node vanilla.command.testforblock
[11:53:00] [Server thread/INFO]: Registered command tellraw with permission node vanilla.command.tellraw
[11:53:00] [Server thread/INFO]: Registered command netstat with permission node vanilla.command.netstat
[11:53:00] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: Could not initialize class Reflector
        at net.minecraft.crash.CrashReport.func_71504_g(CrashReport.java:163) ~[b.class:?]
        at net.minecraft.crash.CrashReport.<init>(CrashReport.java:55) ~[b.class:?]
        at net.minecraft.crash.CrashReport.func_85055_a(CrashReport.java:442) ~[b.class:?]
        at net.minecraft.world.World.<init>(World.java:209) ~[ahb.class:?]
        at net.minecraft.world.WorldServer.<init>(WorldServer.java:162) ~[mt.class:?]
        at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:375) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:337) ~[lt.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:643) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_101]
[11:53:00] [Server thread/INFO]: Applying holder lookups
[11:53:00] [Server thread/INFO]: Holder lookups applied
[11:53:00] [Server thread/INFO]: The state engine was in incorrect state SERVER_STARTING and forced into state SERVER_STOPPED. Errors may have been discarded.
这是什么问题？？

请提供崩溃报告

确定你服务端是完整的?
总感觉缺少了一些class

那是什么？？

[14:34:20] [Server thread/ERROR]: Encountered an unexpected exception java.lang.NoClassDefFoundError: Could not initialize class Reflector         at net.minecraft.crash.CrashReport.func_71504_g(CrashReport.java:163) ~[b.class:?]         at net.minecraft.crash.CrashReport.<init>(CrashReport.java:55) ~[b.class:?]         at net.minecraft.crash.CrashReport.func_85055_a(CrashReport.java:442) ~[b.class:?]         at net.minecraft.world.World.<init>(World.java:209) ~[ahb.class:?]         at net.minecraft.world.WorldServer.<init>(WorldServer.java:162) ~[mt.class:?]         at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:375) ~[MinecraftServer.class:?]         at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:337) ~[lt.class:?]         at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:643) [MinecraftServer.class:?]         at java.lang.Thread.run(Unknown Source) [?:1.8.0_101] [14:34:20] [Server thread/INFO]: Applying holder lookups [14:34:20] [Server thread/INFO]: Holder lookups applied [14:34:20] [Server thread/INFO]: The state engine was in incorrect state SERVER_STARTING and forced into state SERVER_STOPPED. Errors may have been discarded.错误日记

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