Odoacer mentioned a fix for not being able to load into a game with newer versions of Java.
In Windows, run your script editor or even notepad as Administrator and open the java.security file by navigating to the folder of your current java version:
C:\Program Files\Java\
{current java version} \lib\security\java.security
Search for the non-commented out jdk.tls.disabledAlgorithms line and comment it out by placing a "#" in front of the text on that line. Save the file and you should be able to load into a game.
Hope this helps someone.
Edit this file at your own risk, I'm not sure if this fix will make you vulnerable to security issues or not.