private void updateCurrentInfo() {
    if (myCurrentInfo == null) {
      myCurrentInfo = myStableChange;
    }
    String signature = myDetector.extractSignature(myCurrentInfo);
    ChangeInfo changeInfo = myDetector.createNextChangeInfo(signature, myCurrentInfo, myDelegate);
    if (changeInfo == null && myCurrentInfo != null) {
      myStableChange = myCurrentInfo;
    }
    if (changeInfo != null) {
      updateMethodSignature(changeInfo);
    }
    myCurrentInfo = changeInfo;
  }
private void updateCurrentInfo()