Minecraft Forums

[15:10:01] [Server thread/INFO]: Starting minecraft server version 1.8.4
[15:10:01] [Server thread/INFO]: Loading properties
[15:10:01] [Server thread/INFO]: Default game type: SURVIVAL
[15:10:01] [Server thread/INFO]: Generating keypair
[15:10:01] [Server thread/INFO]: Starting Minecraft server on *:25565
[15:10:01] [Server thread/INFO]: Using default channel type
[15:10:01] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[15:10:01] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.
[15:10:01] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
[15:10:01] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.
[15:10:01] [Server thread/INFO]: Preparing level "world"
[15:10:01] [Server thread/INFO]: Preparing start region for level 0
[15:10:02] [Server thread/INFO]: Done (0.966s)! For help, type "help" or "?"
[15:10:08] [Server thread/INFO]: Angela1029[/192.168.0.6:51673] logged in with entity id 153 at (54.30000001192093, 49.5, 45.30000001192093)
[15:10:09] [Server thread/INFO]: Angela1029 joined the game
[15:10:09] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.UnsatisfiedLinkError: Can't obtain static newInstance method for class com.sun.jna.Structure
at com.sun.jna.Native.initIDs(Native Method) ~[minecraft_server.jar:?]
at com.sun.jna.Native.<clinit>(Native.java:135) ~[minecraft_server.jar:?]
at com.sun.jna.Pointer.<clinit>(Pointer.java:42) ~[minecraft_server.jar:?]
at com.sun.jna.platform.win32.WinReg$HKEY.<init>(WinReg.java:32) ~[minecraft_server.jar:?]
at com.sun.jna.platform.win32.WinReg.<clinit>(WinReg.java:61) ~[minecraft_server.jar:?]
at oshi.software.os.windows.WindowsHardwareAbstractionLayer.getProcessors(WindowsHardwareAbstractionLayer.java:33) ~[minecraft_server.jar:?]
at g.<clinit>(SourceFile:16) ~[minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.B(SourceFile:579) ~[minecraft_server.jar:?]
at ko.B(SourceFile:299) ~[minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.A(SourceFile:535) ~[minecraft_server.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:451) [minecraft_server.jar:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
[15:10:09] [Server thread/ERROR]: This crash report has been saved to: D:\Minecraft Server\Vanilla\.\crash-reports\crash-2015-04-22_15.10.09-server.txt
[15:10:09] [Server thread/INFO]: Stopping server
[15:10:09] [Server thread/INFO]: Saving players
[15:10:09] [Server thread/INFO]: Saving worlds
[15:10:09] [Server thread/INFO]: Saving chunks for level 'world'/Overworld
[15:10:09] [Server thread/INFO]: Saving chunks for level 'world'/Nether
[15:10:09] [Server thread/INFO]: Saving chunks for level 'world'/The End
[15:10:10] [Server Shutdown Thread/INFO]: Stopping server

---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 4/22/15 3:10 PM
Description: Exception in server tick loop

java.lang.UnsatisfiedLinkError: Can't obtain static newInstance method for class com.sun.jna.Structure
at com.sun.jna.Native.initIDs(Native Method)
at com.sun.jna.Native.<clinit>(Native.java:135)
at com.sun.jna.Pointer.<clinit>(Pointer.java:42)
at com.sun.jna.platform.win32.WinReg$HKEY.<init>(WinReg.java:32)
at com.sun.jna.platform.win32.WinReg.<clinit>(WinReg.java:61)
at oshi.software.os.windows.WindowsHardwareAbstractionLayer.getProcessors(WindowsHardwareAbstractionLayer.java:33)
at g.<clinit>(SourceFile:16)
at net.minecraft.server.MinecraftServer.B(SourceFile:579)
at ko.B(SourceFile:299)
at net.minecraft.server.MinecraftServer.A(SourceFile:535)
at net.minecraft.server.MinecraftServer.run(SourceFile:451)
at java.lang.Thread.run(Unknown Source)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.8.4
Operating System: Windows 8.1 (amd64) version 6.3
CPU: ~~ERROR~~ NoClassDefFoundError: Could not initialize class g
Java Version: 1.8.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1830859456 bytes (1746 MB) / 2058354688 bytes (1963 MB) up to 2058354688 bytes (1963 MB)
JVM Flags: 2 total; -Xmx2048M -Xms2048M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Player Count: 1 / 9001; [lf['Angela1029'/153, l='world', x=54.30, y=49.50, z=45.30]]
Is Modded: Unknown (can't tell)
Type: Dedicated Server (map_server.txt)