elk-util-parent/elk-util-collections/src/main/java/org/semanticweb/elk/util/collections/ArraySlicedSet.java
@SuppressWarnings("unchecked")
	public void clear() {
		int capacity = data.length >> 2;
		if (capacity == 0)
			capacity = 1;
		initSizes();
		this.data = (E[]) new Object[capacity];
		this.masks = new int[getMaskCapacity(logs, capacity)];
	}
@SuppressWarnings("unchecked")
	public void clear() {
		int capacity = data.length >> 2;
		if (capacity == 0)
			capacity = 1;
		initSizes();
		this.data = (E[]) new Object[capacity];
		this.masks = new int[getMaskCapacity(logs, capacity)];
	}
Clears all slices of this {@link ArraySlicedSet}. After calling this
methods, all slices are empty.