code: public Iterator getSessions(String protocol) {
          Iterator value = null;
          if (protocol.equals("HTTP") && sessionManagersWithinApp != null) {
              ArrayList list = new ArrayList();
              for (Enumeration e = sessionManagersWithinApp.elements(); e.hasMoreElements();) {
                  SessionManager sm = (SessionManager) e.nextElement();
                  Object o = sm.getSession(_iSess.getId(), false);
                  if (o != null) {
                      list.add(o);
                  }
              }
              value = list.iterator();
          }
          return value;
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.ibm.websphere.servlet.session.IBMApplicationSession#getSessions(java
  .lang.String)