code: public Class<?> getClass(final String name) throws UtilEvalError {
          final Class<?> c = this.getClassImpl(name);
          if (c != null)
              return c;
          if (this.parent != null)
              return this.parent.getClass(name);
          return null;
      }
docs: Load a class through this namespace taking into account imports. The
  class search will proceed through the parent namespaces if necessary.
  @param name the name
  @return null if not found.
  @throws UtilEvalError the util eval error