public PsiClass findNotNullClass(final String className) throws RuntimeConfigurationWarning {
    final PsiClass psiClass = findClass(className);
    if (psiClass == null) {
      throw new RuntimeConfigurationWarning(
        ExecutionBundle.message("class.not.found.in.module.error.message", className, getModuleName())) {
        @Override
        public boolean shouldShowInDumbMode() {
          return false;
        }
      };
    }
    return psiClass;
  }
public PsiClass findNotNullClass(final String className)