Java.lang.ArrayIndexOutOfBoundsException causing Forge installer to not launch

[Connor_]

Hello, I downloaded JRE 8, the latest one, and installed it on my system, but i kept having issues opening and or installing forge. First it gave me a SHA1 checksum error for a certain library, and now it just fails to open. Ive tried both the executable and jar, and launched it manually as well as via console and it fails each time. 

Log File
 

Exception in thread "main" java.lang.ExceptionInInitializerError
	at net.minecraftforge.installer.ClientInstall.getSponsorMessage(ClientInstall.java:401)
	at net.minecraftforge.installer.InstallerAction.getSponsorMessage(InstallerAction.java:60)
	at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:334)
	at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:315)
	at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:164)
	at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:51)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
	at net.minecraftforge.installer.MirrorData.buildMirrorList(MirrorData.java:84)
	at net.minecraftforge.installer.MirrorData.<init>(MirrorData.java:63)
	at net.minecraftforge.installer.MirrorData.<clinit>(MirrorData.java:17)
	... 6 more

Console Output:

C:\Users\[REDACTED]\Downloads>java forge-1.11.2-13.20.0.2260-installer.jar
Error: Could not find or load main class forge-1.11.2-13.20.0.2260-installer.jar

Is this an issue with my JRE or is this the installer causing the issue?
 

[Connor_]

Did some testing in a VM, looks like the installer is broken on the website? I tried old JRE versions, specifically JRE- 8u51, which according to my old logs was the version that was running when I installed my old minecraft world with forge. This version HAS to work with the 1.11.2 installer. This error baffles me. 

[DaemonUmbra]

Really old Minecraft versions are no longer supported on this forum.

Please update to a modern version of Minecraft to receive support.