COBCH1820 A STATIC class cannot inherit from another class or implement an interface

The program contains a static class, for example, a class that contains no instance members, that inherits from another class or from an implement interface. This is not allowed.

Resolution:

Correct the code; then recompile.

Example:

In the following example, the B class inherits from another class, A.

       class-id a.
       end class.
       class-id b static inherits type a.
       end class.