java.exe -Xmx2G -Xms2G -jar minecraft_server.14w18b.jar --nogui

[22:01:54] [Server thread/INFO]: Done (1,433s)! For help, type "help" or "?"
stop
[22:01:58] [Server thread/INFO]: Stopping the server
[22:01:58] [Server thread/INFO]: Stopping server
[22:01:58] [Server thread/INFO]: Saving players
[22:01:58] [Server thread/INFO]: Saving worlds
[22:01:58] [Server thread/INFO]: Saving chunks for level 'Molokai'/Overworld
[22:01:58] [Server thread/INFO]: Saving chunks for level 'Molokai'/Nether
[22:01:58] [Server thread/INFO]: Saving chunks for level 'Molokai'/The End
[22:01:58] [Server Shutdown Thread/INFO]: Stopping server
[22:01:58] [Server Shutdown Thread/INFO]: Saving players
2014-05-02 22:01:58,372 ERROR Attempted to append to non-started appender File
2014-05-02 22:01:58,375 ERROR Unable to write to stream logs/latest.log for appender File
2014-05-02 22:01:58,376 ERROR An exception occurred processing Appender File org.apache.logging.log4j.core.appender.AppenderLoggingException: Error wr
iting to RandomAccessFile logs/latest.log
        at org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager.flush(RollingRandomAccessFileManager.java:109)
        at org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager.write(RollingRandomAccessFileManager.java:90)
        at org.apache.logging.log4j.core.appender.OutputStreamManager.write(OutputStreamManager.java:129)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:113)
        at org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender.append(RollingRandomAccessFileAppender.java:96)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:99)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:425)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:406)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367)
        at org.apache.logging.log4j.core.Logger.log(Logger.java:110)
        at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1011)
        at net.minecraft.server.MinecraftServer.p(SourceFile:346)
        at mt.run(SourceFile:670)
Caused by: java.io.IOException: Stream Closed
        at java.io.RandomAccessFile.writeBytes(Native Method)
        at java.io.RandomAccessFile.write(Unknown Source)
        at org.apache.logging.log4j.core.appender.rolling.RollingRandomAccessFileManager.flush(RollingRandomAccessFileManager.java:106)
        ... 12 more

2014-05-02 22:01:58,379 ERROR Attempted to append to non-started appender ServerGuiConsole
Exception in thread "Server Shutdown Thread" org.apache.logging.log4j.core.appender.AppenderLoggingException: Attempted to append to non-started appen
der ServerGuiConsole
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:89)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:425)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:406)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367)
        at org.apache.logging.log4j.core.Logger.log(Logger.java:110)
        at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1011)
        at net.minecraft.server.MinecraftServer.p(SourceFile:346)
        at mt.run(SourceFile:670)