default boolean isStaticMock(Class<?> clazz) {
    return false;
  }
Returns {@code true} if the passed class is a Spock static mock currently active on the current {@link Thread}.

@param clazz the class to check
@return {@code true} if this class is a Spock static mock currently active on the current {@code Thread}
spock-core/src/main/java/org/spockframework/mock/runtime/IMockMaker.java