Hi Egon,
I am using jDeveloper 11.1.1 and was not able to achieve the right settings. For the compiler, I selected version 1.5 in the JDK compatibility setting, but this still produces the incompatible class version exception when trying to run with a 1.5 JRE (in "Libraries and Classpath").
This is why I kept the old applet version online, as a fallback. But if this doesn`t work either, I have to go searching.... Any ideas?
Achim
PS: I found out that I touched the old applet with a java 1.6 compiler. So for the time I reverted to the really old applet (which apart from the old rendering has some features missing). So the fall back should work now.