Bootstrap (v5)
Current time is Oct 25, 2013 10:34:33 AM
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_45'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Found cached update
Renaming C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack.lzma.new to C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack.lzma
Unable to rename - could be on another filesystem, trying copy & delete.
Copy & delete succeeded.
Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Didn't find an update in time.
Reversing LZMA on C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack
Unpacking C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack to C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.jar
Got reply in: 2952ms
No update found.
Cleaning up C:\Users\Michael!\AppData\Roaming\.minecraft\launcher.pack
Starting launcher.
FATAL ERROR: java.lang.ExceptionInInitializerError
	at org.apache.logging.log4j.util.PropertiesUtil.<init>(PropertiesUtil.java:71)
	at org.apache.logging.log4j.util.PropertiesUtil.<clinit>(PropertiesUtil.java:31)
	at org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:48)
	at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:44)
	at net.minecraft.launcher.Launcher.<clinit>(Launcher.java:58)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
	at java.lang.reflect.Constructor.newInstance(Unknown Source)
	at net.minecraft.bootstrap.Bootstrap.startLauncher(Bootstrap.java:240)
	at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:124)
	at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)
Caused by: java.lang.NullPointerException
	at org.apache.logging.log4j.util.ProviderUtil.<clinit>(ProviderUtil.java:70)
	... 12 more


Please fix the error and restart.