Various introduced pea family trees are prevalent in Hawaii. There are also native acacias - you are really going to have to show more than the trunk and branches for reliable determinations to be produced here. With even leaf shots without flowers or fruit being present perhaps not completely adequate.

common forest trees of hawaii - Bing

Yeah, I didn‘t do a great job of getting everything I need to Id the tree unfortunately.

Based off of about 5 min of research, I would guess monkey pod tree. However I didn’t see any seed pods anywhere.