So the problem must be with your JCE Unlimited Strength installation.
Be sure you overwrite the local_policy.jar
and US_export_policy.jar
in both your JDK's jdk1.6.0_25\jre\lib\security\
and in your JRE's lib\security\
folder.
In my case I would place the new .jars in:
C:\Program Files\Java\jdk1.6.0_25\jre\lib\security
and
C:\Program Files\Java\jre6\lib\security
If you are running Java 8 and you encounter this issue. Below steps should help!
Go to your JRE installation (e.g - jre1.8.0_181\lib\security\policy\unlimited) copy local_policy.jar and replace it with 'local_policy.jar' in your JDK installation directory (e.g - jdk1.8.0_141\jre\lib\security).