After setting and testing Java location, relaunching only shows this in the log

[20:54:09] [main/WARN]:Found FMLCorePluginContainsFMLMod marker in cleanroom-relauncher-0.1.2.jar. This is not recommended, @mods should be in a separate jar from the coremod.
[20:54:09] [main/WARN]:The coremod com.cleanroommc.relauncher.CleanroomEntrypoint does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:54:09] [main/WARN]:The coremod CleanroomEntrypoint (com.cleanroommc.relauncher.CleanroomEntrypoint) is not signed!
[20:54:10] [main/INFO]:5 cleanroom releases were queried.
[20:54:10] [main/INFO]:Preparing Cleanroom v0.3.0-alpha and its libraries...
[20:54:10] [main/INFO]:Preparing to relaunch Cleanroom v0.3.0-alpha
[20:54:11] [main/INFO]:Process exited with code: 0