So I installed Minecraft on my macOS computer. I want to install Optifine as well. When I download Optifine Ultra from its website, I get a
.jar file. When I double click on it, I get the following message:
To use the “`java -jar OptiFine_1.12.2_HD_U_C7.jar” command-line tool you need to install a JDK.
Along with this, I get an option to go to the Oracle website to download the 300+MB Java Development Kit.
Is it possible to 'manually' install Optifine without having to install the JDK?