code: public void getPersistentData(ObjectOutputStream oos)
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "getPersistentData", oos);
  
      try
      { 
        HashMap hm = new HashMap();
        hm.put("tick", Long.valueOf(_tick));
        
        oos.writeObject(hm);
      }
      catch (IOException e)
      {
        FFDCFilter.processException(
          e,
          "com.ibm.ws.sib.processor.impl.store.items.AICompletedPrefixItem.getPersistentData",
          "1:129:1.18",
          this);
  
        SIErrorException e2 = new SIErrorException(e);
        SibTr.exception(tc, e2);
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          SibTr.exit(tc, "getPersistentData");
  
        throw e2;
      }
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "getPersistentData");
    }
docs: /* (non-Javadoc)
  @see com.ibm.ws.sib.processor.impl.store.items.SIMPItem#getPersistentData(java.io.ObjectOutputStream)