Bootstrap (v5)
Current time is Jan 31, 2014 2:28:38 PM
System.getProperty('os.name') == 'Windows Vista'
System.getProperty('os.version') == '6.0'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_02'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Found cached update
Renaming C:\Users\Bookworm!\AppData\Roaming\.minecraft\launcher.pack.lzma.new to C:\Users\Bookworm!\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
Got reply in: 1308ms
No update found.
Reversing LZMA on C:\Users\Bookworm!\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Bookworm!\AppData\Roaming\.minecraft\launcher.pack
Unpacking C:\Users\Bookworm!\AppData\Roaming\.minecraft\launcher.pack to C:\Users\Bookworm!\AppData\Roaming\.minecraft\launcher.jar
Cleaning up C:\Users\Bookworm!\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. please help