多线程Bug

publicsynchronizedstaticBasicNameValuePair getValues(int i){
if(valuePairs==null){
    valuePairs =newBasicNameValuePair[5];
    valuePairs[0]=newBasicNameValuePair("channels",SPUtils.getInstance().getString("channel"));
　  valuePairs[1]=newBasicNameValuePair("appVersion",AppUtil.getVersion(UIUtils.getContext()));
    valuePairs[2]=newBasicNameValuePair("deviceUUID",AppUtil.getUniqueIdentification(UIUtils.getContext()));
    valuePairs[3]=newBasicNameValuePair("deviceModel",AppUtil.getDeviceModel(UIUtils.getContext()));
    valuePairs[4]=newBasicNameValuePair("deviceVersion",AppUtil.getDeviceVersion(UIUtils.getContext()));
  }
  return valuePairs[i];
}