public PsiElement @Nullable [] getElements(boolean[] isCopied) {
    MyData data = myCopyPasteManager.getContents(ourDataFlavor);
    if (data == null || !Comparing.equal(data, myRecentData)) {
      return null;
    }
    if (isCopied != null) {
      isCopied[0] = myRecentData.isCopied;
    }
    return myRecentData.getElements();
  }
public PsiElement @Nullable [] getElements(boolean[] isCopied)