FULL PRODUCT VERSION :
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) Client VM (build 25.121-b13, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [version 10.0.14393]

A DESCRIPTION OF THE PROBLEM :
i'm a teacher and use a lot java applications to teach some defnitions to my students , since the last update of java ( securtiy ) i cannot launch any java applet in web navigator ( firefox last version or any other navigator )

i add the web site containing the java applet to exception in java/securtiy , restart the navigator and the problem still up.

for example : http://gilbert.gastebois.pagesperso-orange.fr/java/refraction/lumiere/refraction.htm


REGRESSION. Last worked in version 8u112


REPRODUCIBILITY :
This bug can be reproduced always.