Method remove

src/main/java/pascal/taie/util/collection/IndexMap.java:133–145

(Object key)

    }

    @Override
    public V remove(Object key) {
        int index = indexer.getIndex((K) key);
        if (isValidIndex(index)) {
            V oldV = values[index];
            if (oldV != null) {
                values[index] = null;
                --size;
                return oldV;
            }
        }
        return null;
    }

    @Override
    public void clear() {