So I am a Hypixel main. I ussually always play 1.8.9 on a client such as badlion or lunar. i recently realised that skblock addons, one of the mods included in these clients was kind of bad. i wanted to download NEU or not enogh updates. so it is a mod in 1.8.9 and when i downloaded the forge version for 1.8.9 and clicked open with Java (TM) Binary nothing would open! help pls

Hey, the same thing is happening to me. I've been searching for around 3 hours now and nobody seems to have the answer. The frustrating thing is that 1.9 installs just find but 1.8.9 doesn't seem to work. Everytime i try to install it I get a new note installed on my computer saying:

Exception in thread "main" java.lang.ExceptionInInitializerError
    at net.minecraftforge.installer.ClientInstall.getSponsorMessage(ClientInstall.java:326)
    at net.minecraftforge.installer.InstallerAction.getSponsorMessage(InstallerAction.java:59)
    at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:236)
    at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:217)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:153)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:40)
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
 

 

me too