Installing Java and running JAR files on Android 4.4

I want to install and use Java 8 on Android 4.4. Using Termux is not an option because it requires a minimum of Android 5.0. I do have root access. I tried to install the ARM version of Java using rpm, which worked but it is not usable. When I go to the /bin directory and run ./java -version, it gives me an error ./java: not executable : magic 7F45. Is there a way to install and run Java on a rooted Android phone, without the use of Termux?