Outdated java runtime

[ofer-dev]

Operating System:
OS: Windows

Installer Version:
Installer: 1.0.8

App Version:
App: 1.0.8

UI Version:
UI: fa03e62

Describe the bug
The JREs bundled with the app are significantly outdated.
The openj9 jre is 2 versions behind. 11.0.5 vs 11.0.7
The hotspot jre is 24 versions behind. 8.0.51 vs 8.0.251
Aside from missing potential performance improvements, these version also have many unpatched vulnerabilities.

Expected behaviour
Update to latest openj9/hotspot jre.

Thanks
Ofer

[jikuja]

Just commenting about background story of the JRE.

JRE bundle comes with Mojang's minecraft launcher. Mojang is distributing that version to maintain some hardware compatibility(1),

Changing it by FTB App probably requires lot of work and breaks support(1) for older hardware.

(1) LWJGL/lwjgl#119 (comment)

[Cloudhunter]

I'm not too concerned about the bundled JRE being that out of date, and the 8.0.51 is the Vanilla launchers issue. We'll bump up our OpenJ9 version at some point however, when we have the time to test it fully.