code: public Object getAttribute(String name) {
          if (!_iSess.isValid())
              throw new IllegalStateException();
          Object value = null;
          if (_iSess != null) {
              value = _iSess.getAttribute(name);
          }
          return value;
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.ibm.websphere.servlet.session.IBMApplicationSession#getAttribute(java
  .lang.String)