Since one or two years Oracle has changed the security behaviour of Java programs.
In order to allow accessing my programs in an orderly fashion you should follow the following steps. It would be possible to give my programs the required code signing certificate, but these cost approximately $100 per year!
Now, in the Control Panel do the following in order to permit access to my Java programs.
A special note for Mac OS X:
Now my Java programs will be able to run after having accepted the initial warnings. I certify that these programs contain no malware as long as the are not modified. An icon should appear on your desktop representing the program in question. Double-click this icon in the future for easy execution of the program.