A JRE directory has a bin/java.exe.
You can run a jar from that JRE simply with
<path_to_jre>/bin/java.exe -jar Executable.jar
If you don't want to have to open a console each time, simply put the above line in a .bat file and double click on that.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…