Fatal Error on Launch

On program start of minecraft launcher, Launcher threw this error:

Bootstrap started
Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 1832ms
No update found.
Reversing LZMA on C:\Users\Damien\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Damien\AppData\Roaming\.minecraft\launcher.pack
Exception: java.lang.NullPointerException
FATAL ERROR: java.lang.NullPointerException
	at javax.swing.text.WrappedPlainView$WrappedLine.update(WrappedPlainView.java:736)
	at javax.swing.text.WrappedPlainView$WrappedLine.insertUpdate(WrappedPlainView.java:723)
	at javax.swing.text.WrappedPlainView.insertUpdate(WrappedPlainView.java:470)
	at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(BasicTextUI.java:1602)
	at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(BasicTextUI.java:1861)
	at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:201)
	at javax.swing.text.AbstractDocument.processInsertStringResult(AbstractDocument.java:770)
	at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:714)
	at javax.swing.text.PlainDocument.insertString(PlainDocument.java:130)
	at net.minecraft.bootstrap.Bootstrap.print(Bootstrap.java:207)
	at net.minecraft.bootstrap.Bootstrap.println(Bootstrap.java:195)
	at net.minecraft.bootstrap.Bootstrap.unpack(Bootstrap.java:120)
	at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:111)
	at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:367)


Please fix the error and restart.
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 2/10)
Got reply in: 0ms
No update found.

Launcher just threw another different error on launch(usually happens when launcher is minimized while starting):

Bootstrap started
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\Damien\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\Damien\AppData\Roaming\.minecraft\launcher.pack
Unpacking C:\Users\Damien\AppData\Roaming\.minecraft\launcher.pack to C:\Users\Damien\AppData\Roaming\.minecraft\launcher.jar
Cleaning up C:\Users\Damien\AppData\Roaming\.minecraft\launcher.pack
Starting launcher.
Got reply in: 8619ms
No update found.
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to start: java.lang.reflect.InvocationTargetException
at net.minecraft.bootstrap.Bootstrap.startLauncher(Bootstrap.java:228)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:112)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:367)

Please fix the error and restart.