Why `private static` field is not allowed in Java 8 interface?

Question

When I\'m trying to compile the following code

public interface SomeInterface{
    private static Logger logger = Logger.getLogger();

    public default voi         


        

Answer 1

public interface SomeInterface {
    public default void someMethod() {
        SomeInterfaceInternal.logger.info("someMethod: default implementation");
    }
}

final class SomeInterfaceInternal {
    protected static final Logger logger = LoggerFactory.getLogger(SomeInterface.class);
}