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Any other suggestions?

[17:45:09] [Server thread/INFO]: Starting minecraft server version 1.8.4
[17:45:09] [Server thread/INFO]: Loading properties
[17:45:09] [Server thread/INFO]: Default game type: SURVIVAL
[17:45:09] [Server thread/INFO]: Generating keypair
[17:45:09] [Server thread/INFO]: Starting Minecraft server on *:25565
[17:45:09] [Server thread/INFO]: Using default channel type
[17:45:09] [Server thread/INFO]: Preparing level "world"
[17:45:10] [Server thread/INFO]: Preparing start region for level 0
[17:45:10] [Server thread/INFO]: Done (0.940s)! For help, type "help" or "?"
[17:45:39] [User Authenticator #1/INFO]: UUID of player Bl0ckFarm3r is 0519dd0b-1a9f-41d4-86d7-eba591d6f15a
[17:45:39] [Server thread/INFO]: Bl0ckFarm3r[/192.168.1.18:57260] logged in with entity id 345 at (-131.5, 70.0, 247.5)
[17:45:39] [Server thread/INFO]: Bl0ckFarm3r joined the game
[17:45:40] [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.1.8.4.jar:?]
at com.sun.jna.Native.<clinit>(Native.java:135) ~[minecraft_server.1.8.4.jar:?]
at com.sun.jna.Pointer.<clinit>(Pointer.java:42) ~[minecraft_server.1.8.4.jar:?]
at com.sun.jna.platform.win32.WinReg$HKEY.<init>(WinReg.java:32) ~[minecraft_server.1.8.4.jar:?]
at com.sun.jna.platform.win32.WinReg.<clinit>(WinReg.java:61) ~[minecraft_server.1.8.4.jar:?]
at oshi.software.os.windows.WindowsHardwareAbstractionLayer.getProcessors(WindowsHardwareAbstractionLayer.java:33) ~[minecraft_server.1.8.4.jar:?]
at g.<clinit>(SourceFile:16) ~[minecraft_server.1.8.4.jar:?]
at net.minecraft.server.MinecraftServer.B(SourceFile:579) ~[minecraft_server.1.8.4.jar:?]
at ko.B(SourceFile:299) ~[minecraft_server.1.8.4.jar:?]
at net.minecraft.server.MinecraftServer.A(SourceFile:535) ~[minecraft_server.1.8.4.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:451) [minecraft_server.1.8.4.jar:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
[17:45:40] [Server thread/ERROR]: This crash report has been saved to: C:\Users\John\Downloads\minecraft\server\.\crash-reports\crash-2015-04-19_17.45.40-server.txt
[17:45:40] [Server thread/INFO]: Stopping server
[17:45:40] [Server thread/INFO]: Saving players
[17:45:40] [Server thread/INFO]: Bl0ckFarm3r lost connection: TextComponent{text='Server closed', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[17:45:40] [Server thread/INFO]: Bl0ckFarm3r left the game
[17:45:40] [Server thread/INFO]: Saving worlds
[17:45:40] [Server thread/INFO]: Saving chunks for level 'world'/Overworld
[17:45:41] [Server thread/INFO]: Saving chunks for level 'world'/Nether
[17:45:41] [Server thread/INFO]: Saving chunks for level 'world'/The End
[17:45:41] [Server Shutdown Thread/INFO]: Stopping server
[17:45:41] [Server Shutdown Thread/INFO]: Saving players
[17:45:41] [Server Shutdown Thread/INFO]: Saving worlds

Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!Time: 4/19/15 5:45 PM
Description: Exception in server tick loopjava.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 7 (amd64) version 6.1
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: 919563712 bytes (876 MB) / 1029177344 bytes (981 MB) up to 1029177344 bytes (981 MB)
JVM Flags: 2 total; -Xmx1024M -Xms1024M
IntCache: cache: 9, tcache: 0, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Player Count: 1 / 20; [lf['Bl0ckFarm3r'/345, l='world', x=-131.50, y=70.00, z=247.50]]
Is Modded: Unknown (can't tell)
Type: Dedicated Server (map_server.txt)

When running a version 1.8.4 vanilla server (no mods, fresh install, etc) and attempting to connect to the same server using a 1.8.4 client, the server will crash. I do not think there is an issue with the system I am running it on as an older version of the server will function fine. (1.6.2 tested) I ensured the latest version of java is installed as well. The client I used is running on the same system as the server. Any suggestions?

System specs: 16GB RAM, i5 ...

From the logs:

Log -

[15:37:30] [Server thread/INFO]: Starting minecraft server version 1.8.4
[15:37:30] [Server thread/INFO]: Loading properties
[15:37:30] [Server console handler/ERROR]: Exception handling console input
java.io.IOException: The handle is invalid
at java.io.FileInputStream.readBytes(Native Method) ~[?:1.8.0_45]
at java.io.FileInputStream.read(Unknown Source) ~[?:1.8.0_45]
at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.8.0_45]
at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.8.0_45]
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) ~[?:1.8.0_45]
at sun.nio.cs.StreamDecoder.implRead(Unknown Source) ~[?:1.8.0_45]
at sun.nio.cs.StreamDecoder.read(Unknown Source) ~[?:1.8.0_45]
at java.io.InputStreamReader.read(Unknown Source) ~[?:1.8.0_45]
at java.io.BufferedReader.fill(Unknown Source) ~[?:1.8.0_45]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.8.0_45]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.8.0_45]
at ko$2.run(SourceFile:81) [minecraft_server.1.8.4.exe:?]
[15:37:30] [Server thread/INFO]: Default game type: SURVIVAL
[15:37:30] [Server thread/INFO]: Generating keypair
[15:37:30] [Server thread/INFO]: Starting Minecraft server on *:25565
[15:37:30] [Server thread/INFO]: Using default channel type
[15:37:30] [Server thread/INFO]: Preparing level "world"
[15:37:30] [Server thread/INFO]: Preparing start region for level 0
[15:37:31] [Server thread/INFO]: Preparing spawn area: 54%
[15:37:32] [Server thread/INFO]: Done (1.410s)! For help, type "help" or "?"
[15:37:56] [User Authenticator #1/INFO]: UUID of player Bl0ckFarm3r is 0519dd0b-1a9f-41d4-86d7-eba591d6f15a
[15:37:56] [Server thread/INFO]: Bl0ckFarm3r[/192.168.1.18:52874] logged in with entity id 324 at (-131.5, 70.0, 247.5)
[15:37:56] [Server thread/INFO]: Bl0ckFarm3r joined the game
[15:37:57] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.UnsatisfiedLinkError: Can't obtain static newInstance method for class com.sun.jna.Structure
at com.sun.jna.Native.initIDs(Native Method) ~[minecraft_server.1.8.4.exe:?]
at com.sun.jna.Native.(Native.java:135) ~[minecraft_server.1.8.4.exe:?]
at com.sun.jna.Pointer.(Pointer.java:42) ~[minecraft_server.1.8.4.exe:?]
at com.sun.jna.platform.win32.WinReg$HKEY.(WinReg.java:32) ~[minecraft_server.1.8.4.exe:?]
at com.sun.jna.platform.win32.WinReg.(WinReg.java:61) ~[minecraft_server.1.8.4.exe:?]
at oshi.software.os.windows.WindowsHardwareAbstractionLayer.getProcessors(WindowsHardwareAbstractionLayer.java:33) ~[minecraft_server.1.8.4.exe:?]
at g.(SourceFile:16) ~[minecraft_server.1.8.4.exe:?]
at net.minecraft.server.MinecraftServer.B(SourceFile:579) ~[minecraft_server.1.8.4.exe:?]
at ko.B(SourceFile:299) ~[minecraft_server.1.8.4.exe:?]
at net.minecraft.server.MinecraftServer.A(SourceFile:535) ~[minecraft_server.1.8.4.exe:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:451) [minecraft_server.1.8.4.exe:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
[15:37:57] [Server thread/ERROR]: This crash report has been saved to: C:\Users\xxxx\Downloads\minecraft\server\.\crash-reports\crash-2015-04-18_15.37.57-server.txt
[15:37:57] [Server thread/INFO]: Stopping server
[15:37:57] [Server thread/INFO]: Saving players
[15:37:57] [Server thread/INFO]: Saving worlds
[15:37:57] [Server thread/INFO]: Saving chunks for level 'world'/Overworld
[15:37:57] [Server thread/INFO]: Saving chunks for level 'world'/Nether
[15:37:57] [Server thread/INFO]: Saving chunks for level 'world'/The End

Crash-Report

---- Minecraft Crash Report ----
// Ouch. That hurt

Time: 4/18/15 3:37 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.(Native.java:135)
at com.sun.jna.Pointer.(Pointer.java:42)
at com.sun.jna.platform.win32.WinReg$HKEY.(WinReg.java:32)
at com.sun.jna.platform.win32.WinReg.(WinReg.java:61)
at oshi.software.os.windows.WindowsHardwareAbstractionLayer.getProcessors(WindowsHardwareAbstractionLayer.java:33)
at g.(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 7 (amd64) version 6.1
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: 586715656 bytes (559 MB) / 693633024 bytes (661 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
IntCache: cache: 9, tcache: 0, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Player Count: 1 / 20; [lf['Bl0ckFarm3r'/324, l='world', x=-131.50, y=70.00, z=247.50]]
Is Modded: Unknown (can't tell)
Type: Dedicated Server (map_server.txt)