Only a Chapter VII resolution of the UNSC can enliven the ICC's jurisdiction in this case. All Israel has to do is get an eminent retired judge to conduct an impartial and independent investigation. A handful of low-level charges may result. This would be more than outweighed by the rubbishing the Goldstone report would suffer in a real investigation. And the whole matter would then be rendered inadmissible in the ICC under Article 17 of its Statute, something the US could comfortably enforce by exercise of the veto if the matter ever makes it to the UNSC.
47 killed in clashes between ISIS, Syrian rebels near Turkey border, monitor says (Reuters)
from the article: U.K., France want Israel, PA to probe Goldstone war crimes claims