public void clear() {
    modCount++;
    Entry[] tab = table;
    for (int i = 0; i < tab.length; i++) {
      tab[i] = null;
    }
    size = 0;
  }
Removes all of the mappings from this map. The map will be empty after this call returns.
geode-core/src/main/java/org/apache/geode/cache/query/internal/ObjectIntHashMap.java