sweep

Unweave every patch pick selects. An entry leaves the map only once its advice is really gone, so a sweep that threw leaves every patch it picked listed, woven and firing — and retryable.

Three phases rather than N removals, because the retransform is where the cost is and it batches: deregister everything first (free), drop all their advice in ONE pass, then let the bridge entries go. Removing serially spends a safepoint per patch; this spends one for the whole sweep.

Phase 2 owns the whole failure, being the only phase that can fail — 1 is a field write, 3 is two map removals. Stopping there is what keeps woven advice and its registered handler paired, the invariant PatchHandle.finish exists to protect.

Throws