java.lang.NoClassDefFoundError

As of this morning there was an update and minecraft wouldn't load. I then saved the save files deleted the .minecraft folder and it only gets as far as creating launcher.pack.lzma and launcher.jar files before it errors out.

Dump:
Bootstrap (v5)
Current time is Jun 4, 2014 4:31:22 PM
System.getProperty('os.name') == 'Windows 8.1'
System.getProperty('os.version') == '6.3'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_55'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 898ms
No update found.
Reversing LZMA on C:\Users\Broken\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Broken\AppData\Roaming\.minecraft\launcher.pack
Unpacking C:\Users\Broken\AppData\Roaming\.minecraft\launcher.pack to C:\Users\Broken\AppData\Roaming\.minecraft\launcher.jar
Cleaning up C:\Users\Broken\AppData\Roaming\.minecraft\launcher.pack
Starting launcher.
FATAL ERROR: java.lang.NoClassDefFoundError: com/sun/org/apache/xebces/internal/util/PropertyState
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.checkProperty(Unknown Source)
at com.sun.org.apache.xerces.internal.util.ParserConfigurationSettings.setProperty(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.setProperty(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.configurePipeline(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration.configurePipeline(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at org.apache.logging.log4j.core.config.XMLConfiguration.<init>(XMLConfiguration.java:146)
at org.apache.logging.log4j.core.config.XMLConfigurationFactory.getConfiguration(XMLConfigurationFactory.java:40)
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:446)
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:420)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:377)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:149)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:34)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:387)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:322)
at net.minecraft.launcher.Launcher.<clinit>(Launcher.java:47)
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)

Please fix the error and restart.