"An Israeli Judge must judge according to Israeli law, nothing else." The court has ruled time and time again that customary int'l law (e.g. the Hague Regs 1907) are automatically part of Israeli law. And you are wrong to claim that Israeli Law says that East Jerusalem is not occupied. It makes no such claim, merely proclaiming that East Jerusalem is subject to Israeli law rather than IDF military law. I'll point out that Israel does exactly the same w.r.t. the Golan Heights, yet Israeli law does not claim that the Golan is "not occupied".
Austrian police say they expect 10,000 migrants to arrive from Hungary (DPA)
from the article: Israel's chief justice lashes out over illegal West Bank building