BetaExpansion Mac Test

MultiMC version: 0.4.5

Minecraft folder is:
/Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/instances/Beta Expansion/minecraft

Java path is:
java

Java Arguments:
[-Dfml.ignoreInvalidMinecraftCertificates=true, -Dfml.ignorePatchDiscrepancies=true, -Xdock:icon=icon.png, -Xdock:name="MultiMC: Beta Expansion", -Xms512m, -Xmx1024m, -Duser.language=en, -jar, /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/jars/NewLaunch.jar]

Using onesix launcher.

Main Class:
  net.minecraft.client.Minecraft

Native path:
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/instances/Beta Expansion/natives

Traits:
  [texturepacks, legacyLaunch]

Libraries:
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/instances/Beta Expansion/jarmods/c63725fc-e84a-4fd4-94bb-d0539d832784.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/instances/Beta Expansion/jarmods/ae255646-6161-4401-8ff8-475bcc9909e1.jar
  /Users/AlexBP/Downloads/MultiMC/MultiMC.app/Contents/MacOS/versions/b1.7.3/b1.7.3-stripped.jar

Params:
  [<PROFILE NAME>, <SESSION ID>]

Window size: 854 x 480

Preparing native libraries...
Extracting jinput-platform-2.0.5-natives-osx.jar
Extracting lwjgl-platform-2.9.1-natives-osx.jar

Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/Minecraft : Unsupported major.minor version 51.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at org.multimc.onesix.OneSixLauncher.legacyLaunch(OneSixLauncher.java:142)
	at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:371)
	at org.multimc.EntryPoint.listen(EntryPoint.java:165)
	at org.multimc.EntryPoint.main(EntryPoint.java:54)
Minecraft exited with exitcode 1.